Lotus Service Notes Section EMD

Transcription

1 ENGINE MANAGEMENT SECTION EMD Lotus Techcentre Sub-Section Page Diagnostic Trouble Code List EMD.1 3 Component Function EMD.2 8 Component Location EMD.3 10 Diagnostic Guide EMD.4 11 CAN Bus Diagnostics; Lotus TechCentre EMD Updated 12 th December 2017 Page 1

2 NOTES Cylinder Numbering - viewed from above: RH side of vehicle Front of engine Cylinder Numbering viewed from above Front of engine (auxiliary drive belt end) LH side of vehicle Rear of engine 1 2 LH RH cylinder 3 cylinder bank (2) 4 bank (1) 6 Rear of engine (Flywheel end) Firing order: Page 2

3 EMD.1 - DIAGNOSTIC TROUBLE CODE (DTC) LIST MIL Fault codes DTC Fault description Page P0011 A Camshaft Position - Timing Over-Advanced or System Performance - Bank 1 12 P0012 A Camshaft Position - Timing Over-Retarded - Bank 1 12 P0014 B Camshaft Position - Timing Over-Advanced or System Performance - Bank 1 12 P0015 B Camshaft Position - Timing Over-Retarded - Bank 1 12 P0016 Crankshaft Position - Camshaft Position Correlation - Bank 1 Sensor A 14 P0017 Crankshaft Position - Camshaft Position Correlation - Bank 1 Sensor B 14 P0018 Crankshaft Position - Camshaft Position Correlation - Bank 2 Sensor A 14 P0019 Crankshaft Position - Camshaft Position Correlation - Bank 2 Sensor B 14 P0021 A Camshaft Position - Timing Over-Advanced or System Performance - Bank 2 12 P0022 A Camshaft Position - Timing Over-Retarded - Bank 2 12 P0024 B Camshaft Position - Timing Over-Advanced or System Performance - Bank 2 12 P0025 B Camshaft Position - Timing Over-Retarded - Bank 2 12 P025C Fuel Pump Module "A" Control Circuit Low 17 P025D Fuel Pump Module "A" Control Circuit High 17 P0071 Ambient Air Temperature Sensor Range/Performance 15 P0072 Ambient Air Temperature Sensor Circuit Low 15 P0073 Ambient Air Temperature Sensor Circuit High 15 P0076 Intake Valve Control Solenoid Circuit Low - Bank 1 13 P0077 Intake Valve Control Solenoid Circuit High - Bank 1 13 P0079 Exhaust Valve Control Solenoid Circuit Low - Bank 1 13 P0080 Exhaust Valve Control Solenoid Circuit High - Bank 1 13 P0082 Intake Valve Control Solenoid Circuit Low - Bank 2 13 P0083 Intake Valve Control Solenoid Circuit High - Bank 2 13 P0085 Exhaust Valve Control Solenoid Circuit Low - Bank 2 13 P0086 Exhaust Valve Control Solenoid Circuit High - Bank 2 13 P0087 Fuel Rail/System Pressure - Too Low 17 P0088 Fuel Rail/System Pressure - Too High 17 P0096 Intake Air Temperature Sensor 2 Circuit Range/Performance 19 P0097 Intake Air Temperature Sensor 2 Circuit Low 19 P0098 Intake Air Temperature Sensor 2 Circuit High 19 P0101 Mass or Volume Air Flow Circuit Range/Performance 22 P0102 Mass or Volume Air Flow Circuit Low Input 22 P0103 Mass or Volume Air Flow Circuit High Input 22 P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance 24 P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input 24 P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input 24 P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance 25 P0112 Intake Air Temperature Sensor 1 Circuit Low 25 P0113 Intake Air Temperature Sensor 1 Circuit High 25 P0116 Engine Coolant Temperature Circuit Range/Performance 28 P0117 Engine Coolant Temperature Circuit Low 28 P0118 Engine Coolant Temperature Circuit High 28 P0122 Throttle Position Sensor 'A' Circuit Low 31 P0123 Throttle Position Sensor 'A' Circuit High 31 P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) 34 P0131 O2 Sensor Circuit Low Voltage (Pre Catalyst) - Bank1 35 P0132 O2 Sensor Circuit High Voltage (Pre Catalyst) - Bank1 35 P0133 O2 Sensor Circuit Slow Response (Pre Catalyst) - Bank1 35 P0134 O2 Sensor Circuit No Activity Detected (Pre Catalyst) - Bank1 35 P0135 O2 Sensor Heater Circuit (Pre Catalyst) - Bank1 35 Continued... Updated 12 th December 2017 Page 3

4 DTC Fault description Page P0137 O2 Sensor Circuit Low Voltage (Post Catalyst) - Bank1 38 P0138 O2 Sensor Circuit High Voltage (Post Catalyst) - Bank1 38 P0139 O2 Sensor Circuit Slow Response (Post Catalyst) 38 P0140 O2 Sensor Circuit No Activity Detected (Post Catalyst) - Bank1 38 P0141 O2 Sensor Heater Circuit (Post Catalyst) - Bank1 38 P0151 O2 Sensor Circuit Low Voltage (Pre Catalyst) Bank2 35 P0152 O2 Sensor Circuit High Voltage (Pre Catalyst) Bank2 35 P0153 O2 Sensor Circuit Slow Response (Pre Catalyst) Bank2 35 P0154 O2 Sensor Circuit No Activity Detected (Pre Catalyst) Bank2 35 P0155 O2 Sensor Heater Circuit (Pre Catalyst) Bank2 38 P0157 O2 Sensor Circuit Low Voltage (Post Catalyst) Bank2 38 P0158 O2 Sensor Circuit High Voltage (Post Catalyst) Bank2 38 P0159 O2 sensor Circuit Slow Response (Post Catalyst) 38 P0160 O2 Sensor Circuit No Activity Detected (Post Catalyst) Bank2 38 P0161 O2 Sensor Heater Circuit (post Catalyst) Bank2 42 P0171 System Too Lean Bank1 42 P0172 System Too Rich Bank1 42 P0174 System Too Lean Bank2 42 P0175 System Too Rich Bank2 42 P0191 Fuel Rail Pressure Sensor "A" Circuit Range/Performance 44 P0192 Fuel pressure sensor too low 44 P0193 Fuel pressure sensor too high 44 P0222 Throttle Position Sensor 'B' Circuit Low 31 P0223 Throttle Position Sensor 'B' Circuit High 31 P023B Charge Air Cooler Coolant Pump Control Circuit Low 46 P023C Charge Air Cooler Coolant Pump Control Circuit High 46 P0261 Cylinder 1 Injector Circuit Low 48 P0262 Cylinder 1 Injector Circuit High 48 P0264 Cylinder 2 Injector Circuit Low 48 P0265 Cylinder 2 Injector Circuit High 48 P0267 Cylinder 3 Injector Circuit Low 48 P0268 Cylinder 3 Injector Circuit High 48 P0270 Cylinder 4 Injector Circuit Low 48 P0271 Cylinder 4 Injector Circuit High 48 P0273 Cylinder 5 Injector Circuit Low 48 P0274 Cylinder 5 Injector Circuit High 48 P0276 Cylinder 6 Injector Circuit Low 48 P0277 Cylinder 6 Injector Circuit High 48 P0300 Random/Multiple Cylinder Misfire Detected 49 P0301 Cylinder 1 Misfire Detected 49 P0302 Cylinder 2 Misfire Detected 49 P0303 Cylinder 3 Misfire Detected 49 P0304 Cylinder 4 Misfire Detected 49 P0305 Cylinder 5 Misfire Detected 49 P0306 Cylinder 6 Misfire Detected 49 P0327 Knock Sensor 1 Circuit Low 51 P0328 Knock Sensor 1 Circuit High 51 P0332 Knock Sensor 2 Circuit Low 51 P0333 Knock Sensor 2 Circuit High 51 P0335 Crankshaft Position Sensor A Circuit Range/Performance 52 P0341 Camshaft Position Sensor A Circuit Range/Performance (Bank 1) 53 P0346 Camshaft Position Sensor A Circuit Range/Performance (Bank 2) 53 Continued... Updated 12 th December 2017 Page 4

5 DTC Fault description Page P0351 Ignition Coil A Primary/Secondary Circuit 54 P0352 Ignition Coil B Primary/Secondary Circuit 54 P0353 Ignition Coil C Primary/Secondary Circuit 54 P0354 Ignition Coil D Primary/Secondary Circuit 54 P0355 Ignition Coil E Primary/Secondary Circuit 54 P0356 Ignition Coil F Primary/Secondary Circuit 54 P0366 Camshaft Position Sensor B Circuit Range/Performance (Bank 1) 53 P0391 Camshaft Position Sensor B Circuit Range/Performance (Bank 2) 53 P0420 Catalyst System Efficiency Below Threshold (Bank 1) 55 P0430 Catalyst System Efficiency Below Threshold (Bank 2) 55 P0441 Evaporative Emission System Incorrect Purge Flow 57 P0442 Evaporative Emission System Leak Detected (small leak) 57 P0444 Evaporative Emission System Purge Control Valve Circuit Open 60 P0445 Evaporative Emission System Purge Control Valve Circuit Shorted 60 P0446 Evaporative Emission System Vent Control Circuit 60 P0447 Evaporative Emission System Vent Control Circuit Open 60 P0448 Evaporative Emission System Vent Control Circuit Shorted 60 P0451 Evaporative Emission System Pressure Sensor/Switch Range/Performance 60 P0452 Evaporative Emission System Pressure Sensor/Switch Low 60 P0453 Evaporative Emission System Pressure Sensor/Switch High 60 P0455 Evaporative Emission System Leak Detected (large leak) 57 P0456 Evaporative Emission System Leak Detected (very small leak) 57 P0461 Fuel Level Sensor A Circuit Range/Performance 62 P0462 Fuel Level Sensor A Circuit Low 62 P0463 Fuel Level Sensor A Circuit High 62 P0500 Vehicle Speed Sensor A 65 P0506 Idle Air Control System RPM Lower Than Expected 66 P0507 Idle Air Control System RPM Higher Than Expected 66 P050A Cold Start Idle Air Control System Performance 67 P050B Cold Start Ignition Timing Performance 68 P0523 Engine Oil Pressure Sensor Switch High 69 P0562 System Voltage Low 71 P0563 System Voltage High 71 P0601 Watchdog 74 P0606 Checksum 74 P0610 Variant Code not Programmed 75 P0627 Fuel Pump "A" Control Circuit / Open 17 P0630 VIN not Programmed or Incompatible 77 P0638 Throttle Control Error 78 P0685 ECM Power Relay Control Circuit Open 80 P0700 Transmission Control System (MIL Request) 81 P1104 Safety Processor Throttle Shutdown 88 P1106 Throttle shutdown by BTO 89 P1107 Manifold Absolute Pressure Sensor Circuit Low Input 90 P1108 Manifold Absolute Pressure Sensor Circuit High Input 90 P1109 Manifold Absolute Pressure Sensor Intermittent 90 P1301 Misfire level causing emissions increase 92 P1302 Misfire level causing catalyst system damage 92 P1562 Battery Voltage Too Low To Complete Throttle Autozero 71 P2100 Throttle Actuator Control Motor Circuit/Open 93 P2102 Throttle Actuator Control Motor Circuit Low 93 P2103 Throttle Actuator Control Motor Circuit High 93 P2104 Throttle Actuator Control System Forced Idle 93 Continued... Updated 12 th December 2017 Page 5

6 DTC Fault description Page P2105 Throttle Actuator Control System Forced Engine Shutdown 93 P2106 Throttle Actuator Control System Forced Limited Power 93 P2107 Throttle Actuator Control Module Processor 93 P2108 Throttle Actuator Control Module Performance 93 P2119 Throttle Actuator Control Throttle Body Range/Performance 93 P2122 Throttle/Pedal Position Sensor/Switch "D" Circuit Low 97 P2123 Throttle/Pedal Position Sensor/Switch "D" Circuit High 97 P2127 Throttle/Pedal Position Sensor/Switch "E" Circuit Low 97 P2128 Throttle/Pedal Position Sensor/Switch "E" Circuit High 97 P2135 Voltage Correlation Error (Sensors A & B ). 97 P2138 Voltage Correlation Error (Sensors D & E ). 97 P2170 Exhaust Pressure Regulator Vent Solenoid Control Circuit Low 100 P2171 Exhaust Pressure Regulator Vent Solenoid Control Circuit High 100 P2173 Throttle Actuator Control System High Airflow Detected 100 P2191 System Too Lean at Higher Load Bank1 102 P2193 System Too Lean at Higher Load Bank2 102 P219A Bank 1 Air-Fuel Ratio Imbalance 103 P219B Bank 2 Air-Fuel Ratio Imbalance 103 U0109 Lost Communication With Fuel Pump Control Module 108 Non-MIL Fault codes DTC Fault description Page P0482 Fan 3 Control Circuit 64 P0537 A/C Evaporator Temperature Sensor Circuit Low 70 P0538 A/C Evaporator Temperature Sensor Circuit High 70 P0564 Cruise Control Multi-function Input Signal 72 P0571 Brake Switch A Circuit 72 P0578 Cruise Control Multi-Function Input A Circuit Stuck 72 P0579 Cruise Control Multi-Function Input "A" Circuit Range / Performance 72 P0616 Starter Relay Circuit Low 76 P0617 Starter Relay Circuit High 76 P0646 A/C Clutch Relay Control Circuit Low 79 P0647 A/C Clutch Relay Control Circuit High 79 P0712 Transmission Fluid Temperature Sensor "A" Circuit Low 82 P0713 Transmission Fluid Temperature Sensor "A" Circuit High 82 P0806 Clutch Position Sensor Circuit Range/Performance 85 P0807 Clutch Position Sensor Circuit Low 85 P0808 Clutch Position Sensor Circuit High 85 P0826 Up and Down Shift Switch Circuit 87 P0827 Up and Down Shift Switch Circuit Low 87 P0828 Up and Down Shift Switch Circuit High 87 P0897 Transmission Fluid Deteriorated 82 P1809 Noisy Clutch Pedal Sensor 85 P2602 Coolant Pump Control Circuit Low 104 P2603 Coolant Pump Control Circuit High 104 P2612 A/C Refrigerant Distribution Valve Control Circuit Low 105 P2613 A/C Refrigerant Distribution Valve Control Circuit High 105 P2754 Transmission Fluid Cooler Control Circuit Low 82 P2755 Transmission Fluid Cooler Control Circuit High 82 P2797 Auxiliary Transmission Fluid Pump Performance 82 B1422 A/C Compressor Lock Sensor Circuit 106 U0101 Lost Communications with TCM 107 Continued... Updated 12 th December 2017 Page 6

7 DTC Fault description Page U0122 Lost Communications with VDCM 109 U0123 Lost Communications with Yaw Rate Sensor Module 110 U0141 Lost Communication with Body Control Module (Integrated Control Module) "A" 111 U0155 Lost Communications with Instrument Pack 112 U0302 Software Incompatible with TCM 113 U0316 Software Incompatible with VDCM 114 U0416 Invalid Data Received From VDCM 115 U0513 Invalid Data Received from Yaw Rate Sensor Module 110 When applicable, reference may be made under the 'Notes' heading to a page in the Toyota service manual. This information should be used only for diagnosis and connection detail of the sensor. The Evora uses a Lotus ECU, the connections for which may be found in circuit diagrams in the applicable 'MH' section for the vehicles relevant model year, market and or powertrain. Diagnostic Trouble Codes should be read using the Lotus TechCentre. Updated 12 th December 2017 Page 7

8 EMD.2 - COMPONENT FUNCTION Component Function Mass Air Flow Meter Intake Air Temperature Sensor Engine Coolant Temperature Sensor Throttle Position Sensor Pedal Position Sensor Barometric Pressure Sensor O2 Sensor (Front) Bank 1 O2 Sensor (Front) Bank 2 O2 Sensor (Rear) Bank 1 O2 Sensor (Rear) Bank 2 Engine load detection Air temperature detection Engine coolant temperature detection Determines engine throttle position Determines pedal position requested by driver Barometric pressure detection Measures oxygen content in exhaust before bank 1 primary catalyst Measures oxygen content in exhaust before bank 1 primary catalyst Measures oxygen content in exhaust after bank 1 primary catalyst Measures oxygen content in exhaust after bank 2 primary catalyst Determines crankshaft position Determines bank1 inlet camshaft position Determines bank 2 inlet camshaft position Determines bank 1 exhaust camshaft position Determines bank 2 exhaust camshaft position Determines bank 1 engine detonation Determines bank 2 engine detonation Determines fuel tank level Evaporator temperature detection Determines clutch pedal position Determines brake pedal position Determines driver request for cruise control Actuates engine throttle Crankshaft Position Sensor Camshaft Position Sensor (Inlet) Bank 1 Camshaft Position Sensor (Inlet) Bank 2 Camshaft Position Sensor (Exhaust) Bank 1 Camshaft Position Sensor (Exhaust) Bank 2 Knock Sensor Bank1 Knock Sensor Bank2 Fuel Level Sensor Air Conditioning Evaporator Temperature Sensor Clutch Pedal Position Sensor Brake Pedal Position Switch Cruise Control Multi-function Input Electronic Throttle Control Motor Injector Circuit Cylinder 1 Regulates fuel injected into cylinder 1 Injector Circuit Cylinder 2 Regulates fuel injected into cylinder 2 Injector Circuit Cylinder 3 Regulates fuel injected into cylinder 3 Injector Circuit Cylinder 4 Regulates fuel injected into cylinder 4 Injector Circuit Cylinder 5 Regulates fuel injected into cylinder 5 Injector Circuit Cylinder 6 Regulates fuel injected into cylinder 6 Ignition Circuit Cylinder 1 Actuates spark plug in cylinder 1 Ignition Circuit Cylinder 2 Actuates spark plug in cylinder 2 Ignition Circuit Cylinder 3 Actuates spark plug in cylinder 3 Ignition Circuit Cylinder 4 Actuates spark plug in cylinder 4 Ignition Circuit Cylinder 5 Actuates spark plug in cylinder 5 Ignition Circuit Cylinder 6 Actuates spark plug in cylinder 6 Variable Valve Timing Actuator (Inlet) Bank 1 Variable Valve Timing Actuator (Inlet) Bank 2 Variable Valve Timing Actuator (Exhaust) Bank 1 Variable Valve Timing Actuator (Exhaust) Bank 2 Variable Intake Manifold Actuator Primary Catalyst Bank 1 Primary Catalyst Bank 2 Secondary Catalyst Evaporative Emission Control System Purge Control Valve Fuel Pump Relay Starter Relay Actuates bank 1 inlet camshaft timing control Actuates bank 2 inlet camshaft timing control Actuates bank 1 exhaust camshaft timing control Actuates bank 2 exhaust camshaft timing control Actuates variable intake manifold Removes pollutants from exhaust Removes pollutants from exhaust Removes pollutants from exhaust Regulates fuel tank vapour flow into inlet manifold Actuates fuel pump Actuates engine starter motor Page 8

9 Component Function Cooling Fan 3 Relay Actuates cooling fan 3 Air Conditioning Control Relay Actuates air conditioning compressor Air Conditioning Control Valve Regulates air conditioning compressor load Coolant Recirculation Pump Actuates coolant recirculation pump Noise Flap Solenoid Actuates air intake flap vacuum control ABS Provides vehicle wheel speed information Battery Provides electrical power Exhaust Bypass Soleniod Allows EP valve to draw vacuum from airbox Manual transmission coolant pump Actuates manual transmission coolant pump Ambient Air Temperature Sensor Provides outside air temperature Charge air coolant pump Circulates coolant through supercharger coolant system Updated 12 th December 2017 Page 9

10 EMD.3 - COMPONENT LOCATION ENGINE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR BANK 2 INTAKE SIDE) CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR BANK 1 INTAKE SIDE) BOOST TEMPERATURE PRESSURE SENSOR FUEL INJECTOR ENGINE COOLANT TEMPERATURE SENSOR CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR BANK 1 EXHAUST SIDE) IGNITION COIL NOISE SUPPRESION CAPACITOR IGNITION COIL VVT SENSOR (FOR BANK 2 EXHAUST SIDE) PRE - CAT O 2 SENSOR (FOR BANK 2) KNOCK SENSOR (FOR BANK 1) OIL PRESSURE SWITCH VVT SENSOR (FOR BANK 2 INTAKE SIDE) CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR BANK 2 EXHAUST SIDE) CRANKSHAFT POSITION SENSOR KNOCK SENSOR (FOR BANK 2) VVT SENSOR (FOR BANK 1 INTAKE SIDE) POST - CAT O 2 SENSOR (FOR BANK 1) POST - CAT O 2 SENSOR (FOR BANK 1) VVT SENSOR (FOR BANK 1 EXHAUST SIDE) PRE - CAT O 2 SENSOR (FOR BANK 1) Updated 12 th December 2017 Page 10

11 B C C D A E F G L H I J K A. Ambient air temperature sensor B. Module Fan Controller C. Charcoal Canister C. Canister Close Valve (Federal only) D. Purge Valve E. Throttle body and IAC (Idle Air Control) valve F. Manual transmission cooler pump G.Clutch potentiometer H. Fuel pump and sender unit assembly I. ECU (Electronic Control Unit) as well as TCU (Transmission Control Unit) (automatic vehicles only) J Meter, air intake flow K Temperature sender (for manual transmission cooler pump system) L. Vacuum valve switch Updated 12 th December 2017 Page 11

12 EMD.4 - DIAGNOSTIC GUIDE Camshaft Timing Control (VVT) P0011 Camshaft Position Inlet Timing Over-Advanced or System Performance (Bank 1) P0012 Camshaft Position Inlet Timing Over-Retarded (Bank 1) P0014 Camshaft Position Exhaust Timing Over-Advanced or System Performance (Bank 1) P0015 Camshaft Position Exhaust Timing Over Retarded (Bank 1) P0021 Camshaft Position Inlet Timing Over-Advanced or System Performance (Bank 2) P0022 Camshaft Position Inlet Timing Over-Retarded (Bank 2) P0024 Camshaft Position Exhaust Timing Over-Advanced or System Performance (Bank 2) P0025 Camshaft Position Exhaust Timing Over-Retarded (Bank 2) The Variable Valve Timing system (VVT) on the intake camshafts and the exhaust camshafts can vary the timing by approximately 35. The camshaft relative position is varied by a system of vanes mounted on the drive end of the camshaft. Each VVT oil control valve modulates a spool valve position in accordance with the drive signal duty cycle, this in turns controls the oil pressure applied to the vanes. A 50% duty cycle applied to the valve will hold the valve current timing by preventing oil flow from the VVT controller housing, a duty cycle less than 50% will retard the valve timing, a duty cycle greater then 50% will advance the valve timing. The ECM regulates this duty cycle based on the feedback signal from the respective camshaft position sensor to optimise the camshaft timing. Component connections Sensor Connector ECM Pin ECM Connector 1 Rear ignition relay via fuse R VVT Control Valve Inlet (Bank 1) B2 48 Way (Centre) 1 Rear ignition relay via fuse R VVT Control Valve Exhaust (Bank 1) A2 48 Way (Centre) 1 Rear ignition relay via fuse R8-2 VVT Control Valve Inlet (Bank 2) A3 48 Way (Centre) 1 Rear ignition relay via fuse R8-2 VVT Control Valve Exhaust (Bank 2) A4 48 Way (Centre) Engine running > 30 secs Coolant temperature > 60 C (140 F) P0116, P0117, P0118 Coolant temperature fault codes VVT error > 5 degrees for time > 2.5 secs Static valve timing is incorrect VVT camshaft actuator failure VVT control valve stuck open / closed VVT control valve filter The MIL will be illuminated if the faults are present for 2 consecutive trips Page 12

13 Camshaft Timing Control (VVT) P0076 Intake Valve Control Solenoid Circuit Low (Bank1) P0077 Intake Valve Control Solenoid Circuit High (Bank1) P0079 Exhaust Valve Control Solenoid Circuit Low (Bank1) P0080 Exhaust Valve Control Solenoid Circuit High (Bank1) P0082 Intake Valve Control Solenoid Circuit Low (Bank2) P0083 Intake Valve Control Solenoid Circuit High (Bank2) P0085 Exhaust Valve Control Solenoid Circuit Low (Bank2) P0086 Exhaust Valve Control Solenoid Circuit High (Bank2) The Variable Valve Timing system (VVT) on the intake camshafts and the exhaust camshafts can vary the timing by approximately 35. The camshaft relative position is varied by a system of vanes mounted on the drive end of the camshaft. Each VVT oil control valve modulates a spool valve position in accordance with the drive signal duty cycle, this in turns controls the oil pressure applied to the vanes. A 50% duty cycle applied to the valve will hold the valve current timing by preventing oil flow from the VVT controller housing, a duty cycle less than 50% will retard the valve timing, a duty cycle greater then 50% will advance the valve timing. The ECM regulates this duty cycle based on the feedback signal from the respective camshaft position sensor to optimise the camshaft timing. Component connections Sensor Connector ECM Pin ECM Connector 1 Rear ignition relay via fuse R VVT Control Valve Inlet (Bank 1) B2 48 Way (Centre) 1 Rear ignition relay via fuse R VVT Control Valve Exhaust (Bank 1) A2 48 Way (Centre) 1 Rear ignition relay via fuse R8-2 VVT Control Valve Inlet (Bank 2) A3 48 Way (Centre) 1 Rear ignition relay via fuse R8-2 VVT Control Valve Exhaust (Bank 2) A4 48 Way (Centre) Engine running P0076, P0079, P0082, P VVT control valve open circuit or short to ground P0077, P0080, P0083, P VVT control valve circuit short to battery voltage ECM output circuit failure VVT control valve The MIL will be illuminated if the faults are present for 2 consecutive trips Page 13

14 Crankshaft Position Camshaft Position Correlation Error P0016 Crankshaft position camshaft position correlation bank 1 sensor A (Inlet) P0017 Crankshaft position camshaft position correlation bank 1 sensor B (Exhaust) P0018 Crankshaft position camshaft position correlation bank 2 sensor A (Inlet) P0019 Crankshaft position camshaft position correlation bank 2 sensor B (Exhaust) The crankshaft position sensor is used to identify engine position and speed via a pole wheel mounted on the front end of the crankshaft. The camshaft position sensor is used to determine camshaft position from a three vane reluctor on the rear end of the inlet and exhaust camshaft. Fault codes P0016, P0017, P0018, P0019 indicate a mechanical timing error such as incorrectly set, or 'jumped' cam timing. Engine running (from cranking up to 4 seconds) Camshaft out of phase with crankshaft > 16 degrees Static valve timing is incorrect VVT camshaft actuator failure VVT control valve stuck open / closed VVT control valve filter The MIL will be illuminated if the faults are present for 2 consecutive trips Page 14

15 Ambient Air Temperature Sensor P0071 Ambient Air Temperature Sensor Range/Performance P0072 Ambient Air Temperature Sensor Circuit Low P0073 Ambient Air Temperature Sensor Circuit High Indicates when the ambient air temperature is out of range. The sensor is directly connected to the Instrument Pack which then processes and passes the information to the ECM via CAN. P0071 Discreet Monitor. Monitor takes place when the ignition is switched on prior to the engine being started. Ignition on Battery voltage > 10V Cumulative time with engine coolant temperature < 70degC, engine off & ignition on < 60s (time accumulates across drive cycles and is reset if engine coolant temperature > 70degC and the engine is running. The Inlet Air, Manifold Air and Coolant temperatures are within 5ºC (9F) of each other but the Ambient Air temperature differs by than 10ºC (18ºF). Following a start where the Air Inlet temperature was greater than the Ambient Air temperature by more than 15ºC (27ºF), the Air Inlet temperature then dropped by less than 2ºC (4ºF) during the drive away. Inlet Air & Manifold Air temperatures are within 5ºC (9ºF) of each other and the Ambient Air temperature is greater than both by more than 10ºC (18ºF) or less than both by more than 15ºC (27ºF). Inlet Air & Engine Coolant temperatures are within 5ºC (9ºF) of each other and the Ambient Air temperature is greater than both by more than 10ºC (18ºF) or less than both by more than 15ºC (27ºF) Manifold Air & Engine Coolant temperatures are within 5ºC (9ºF) of each other and the Ambient Air temperature is greater than both by more than 10ºC (18ºF). Ambient Air temperature is greater than Inlet Air, Manifold Air and Engine Coolant temperatures by more than 10ºC (18ºF) or less than all three sensors by more than 15ºC (27ºF). If the Ambient Air temperature is deemed to low at ignition on (more than 15ºC less than the other temperature sensors) a fault will only be confirmed if the Air Inlet temperature subsequently drops by less than 2ºC (4ºF) during the initial engine start and drive away. Sensor wiring Sensor failure Instrument pack wiring Instrument pack failure The MIL will be illuminated if the faults are present for 2 consecutive trips P0072 Engine running The sensor is reading below -39ºC (-38ºF) for longer than 4.5 seconds Page 15

16 Sensor wiring Sensor failure Instrument pack wiring Instrument pack failure The MIL will be illuminated if the faults are present for 2 consecutive trips P0073 Engine running The sensor is reading above 80ºC (176ºF) for longer than 4.5 seconds Sensor wiring Sensor failure Instrument pack wiring Instrument pack failure The MIL will be illuminated if the faults are present for 2 consecutive trips Page 16

17 Fuel Pump Module P0087 Fuel Rail System/Pressure Too Low P0088 Fuel Rail System/Pressure Too High P025C Fuel Pump Module Control Circuit Low P025D Fuel Pump Module Control Circuit High P0627 Fuel Pump "A" Control Circuit/Open : The Evora 400 fuel system is a pulse modulated demand type with the fuel pump voltage being variable and controlled by the fuel pump control module. The fuel pump is incorporated into the fuel tank module, which also includes the fuel level sensor and the vapour pressure sensor. The fuel pump control module regulates the voltage supplied to the pump to maintain the required fuel pressure indicated by the fuel rail pressure sensor, under control of the ECM. The fuel pump control module also has some internal diagnostics which it returns to the ECM using its monitor connector. Component connections Sensor connector ECM Pin ECM Connector 1 Ground via ECM K3 48 Way (Right) 2 Fuel rail pressure sensor signal L3 48 Way (Centre) 3 5 volt supply from ECM F4 48 Way (Right) Module connector ECM Pin ECM Connector 1 Power from fuel pump relay via fuse R17 and MR2 2 N/C Fuel pump control from ECM K2 48 Way (Right) 4 Ground Fuel pump supply voltage N/C Fuel pump monitor to ECM A1 48 Way (Right) 8 Fuel pump ground - - via fuel pump relay 2 P0087 / P0088 Engine running for more than 5 seconds Fuel tank level greater than 6 litres Fuel demand less than 80 kg/hr Engine coolant temperature greater than 50ºC (122ºF) Fuel level sensor fault Coolant temperature sensor fault Fuel pump control module fault Deceleration fuel cut off active P0087 Indicated fuel pressure less than target by 500 mbar (50kPa) for more than 5 seconds P0088 Indicated fuel pressure greater than target by 1000 mbar (100kPa) for more than 5 seconds Page 17

18 Fuel pressure sensor failure Fuel control module failure Fuel pump failure Restriction in fuel system The MIL will be illuminated if a fault is present for two consecutive trips. P025C / P025D Ignition on P025C Fuel pump control module open circuit P025C Fuel pump control module shorted to ground P025D Fuel pump control module shorted to 12 volts Fuel pump control module wiring open circuit or shorted to ground or shorted to supply voltage Wiring harness or connector damage Fuel pump control module failure The MIL will be illuminated if a fault is present for two consecutive trips. P0627 Ignition on ECM receives error signal from the fuel pump control module which identifies that the fuel pump control module has detected that its connection to the fuel pump is either open circuit, shorted to ground or shorted to the supply voltage. Fuel pump control module wiring to fuel pump open circuit or shorted to ground or shorted to supply voltage Wiring harness or connector damage Fuel pump failure Fuel pump relay 2 failure The MIL will be illuminated if the fault is present. Page 18

19 Manifold Air Temperature P0096 Manifold Air Temperature Sensor Circuit Range/Performance P0097 Manifold Air Temperature Sensor Circuit Low P0098 Manifold Air Temperature Sensor Circuit High The combined TMAP sensor which measures both Manifold Air Temperature (MAT) and Manifold Absolute Pressure (MAP) is located downstream of the supercharger and charge air cooler. The sensor is a thermistor device which changes resistance with temperature. As the MAT decreases the thermistor resistance value increases, and conversely as the MAT increases so the thermistor resistance value decreases. Sensor connections Sensor Connector ECM Pin ECM Connector 1 Ground J3 48 Way (Centre) 2 MAT signal F1 48 Way (Centre) 3 5 V supply from ECM J1 48 Way (Centre) 4 MAP signal D4 48 Way (Centre) Sensor characteristics MAT -20 C (-4 F) MAT 20 C (68 F) MAT 60 C (140 F) kω kω kω P0096 Noisy sensor check continuous, all other parts of monitor are discreet tests Disable Criteria Stuck Sensor Check: P0101, P0102, P0103 MAF sensor fault codes P0116, P0117, P0118 Coolant temperature fault codes Enable Criteria Stuck Sensor Check: Engine running > 5 secs Accumulated mass air flow > 3968 g Coolant temperature > 70 C (158 F) Condition 1 MAF > 13 g/s for 15s. To occur twice during drive cycle Condition 2 Vehicle stationary and idling for 15s. To occur twice during drive cycle Malfunction Criteria Stuck Sensor Check: Manifold air temperature sensor input not changed by more than 24 mv Enable Criteria Noisy Sensor Check: Engine running Malfunction Criteria Noisy Sensor Check Manifold air temperature erratic by more than 10 C (18 F) for more than 4.5 secs Enable Criteria Rationality Check, Engine Ambient Soaked: Ignition turned on following a soak period and Ambient Air & Engine Coolant temperatures are within 5ºC (9F) of each other Battery voltage > 10V Cumulative time with engine coolant temperature < 70ºC (158ºF), engine off & ignition on < 60s (time accumulates across drive cycles and is reset if engine coolant temperature > 70ºC (158ºF) and the engine is running. Page 19

20 Malfunction Criteria Rationality Check, Engine Ambient Soaked: Manifold Air Temperature is greater than the Inlet Air Temperature by more than 15ºC (27ºF) or less than by more than 10ºC (18ºF) AND Manifold Air Temperature is greater than the Ambient Air Temperature by more than 15ºC (27ºF) or less than by more than 10ºC (18ºF). Enable Criteria Rationality Check, Engine Hot: Ignition on Battery voltage > 10V Cumulative time with engine coolant temperature < 70ºC (158ºF), engine off & ignition on < 60s (time accumulates across drive cycles and is reset if engine coolant temperature 70ºC (158ºF) and the engine is running. Malfunction Criteria Rationality Check, Engine Hot: Manifold Air temperature is greater than Inlet Air, Ambient Air and Engine Coolant temperatures by more than 15ºC (18ºF) or less than all three sensors by more than 10ºC (27ºF). Sensor wiring or connector damage Sensor fault The MIL will be illuminated if the fault is present for 2 consecutive trips P0097 Engine running Manifold Air Temperature sensor input less than 48 mv Sensor wiring or connector damage Sensor wiring shorted to ground Sensor failure The MIL will be illuminated if the fault is present for 2 consecutive trips P0098 Engine running Page 20

21 Manifold Air Temperature sensor input greater than 4.94 V for more than Sensor disconnected Sensor wiring or connector damage Sensor failure The MIL will be illuminated if the fault is present for 2 consecutive trips Page 21

22 Intake Air Flow P0101 Mass or Volume Air Flow Circuit Range/Performance P0102 Mass or Volume Air Flow Circuit Low Input P0103 Mass or Volume Air Flow Circuit High Input The Mass Air Flow (MAF) sensor is incorporated into the airbox, and measures both intake air flow rate and Intake Air Temperature (IAT). The MAF sensor uses a hot wire exposed to the airflow, which is maintained at a constant temperature by a constant current flow. This is achieved within the sensor unit by varying the voltage applied to the hot wire. This voltage is the output signal from the MAF sensor. Sensor connections Sensor Connector ECM Pin ECM Connector 1 IAT Signal E3 48 Way (Centre) 2 IAT Ground J3 48 Way (Centre) 3 Rear ignition relay via fuse R MAF Ground J4 48 Way (Centre) 5 MAF Signal G1 48 Way (Centre) Sensor characteristics g/sec Typical values: g/sec (idle), g/sec (2500rpm elevated idle no load) P0101 Noisy sensor check continuous, all other parts of monitor are discreet tests Enable Criteria 1: Engine running at idle No canister purge Vehicle stationary Intake Air temperature < 45ºC (113ºF) Disable Criteria 1: P0122, P0123, P0222, P0223 Throttle/Pedal position fault codes Purge, Camshaft or Vehicle speed fault codes Malfunction Criteria 1: Measured MAF is compared to a predicted MAF based on current engine conditions. Error > 29% for time > 5 x 1.5 secs Enable Criteria 2: Engine running Engine speed >1500rpm Engine speed < 3600rpm Fuel Learns enabled Disable Criteria 2: P0122, P0123, P0222, P0223 Throttle/Pedal position fault codes Malfunction Criteria 2: Measured MAF is compared to a predicted MAF based on current engine conditions. Error > 40% for time > 1.5 secs Page 22

23 MAF sensor wiring or connector damage Air leak between MAF sensor and throttlebody MAF meter fault The MIL will be illuminated if the faults are present for 2 consecutive trips P0102. Engine running Voltage at ECM < 0.52V for time > 1.5 secs MAF sensor circuit open MAF sensor circuit short to ground The MIL will be illuminated if the faults are present for 2 consecutive trips P0103. Engine running Voltage at ECM > 4.86V for time > 1.5 secs MAF sensor circuit short to ECM supply voltage The MIL will be illuminated if the faults are present for 2 consecutive trips Page 23

24 Barometric Pressure P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input The barometric pressure sensor is located internally within the ECM, and measures atmospheric pressure. This parameter is required to compensate the mass air flow when the vehicle is operated at higher altitudes. P0106 Engine running Engine speed rpm & TPS > 80% Engine speed rpm & 12.5% < TPS < 22.5% P0101, P0102, P0103 MAF Sensor fault codes P0121, P0122, P0123, P0222, P0223, P2135 Throttle/Pedal position fault codes Measured Baro is compared to a predicted Baro based on current engine conditions. Error > 150kPa for time > 4.5 seconds. Sensor failure MAF sensor error Inlet manifold air leak The MIL will be illuminated if the faults are present for 2 consecutive trips P0107, P0108 Engine running P0107: Voltage at ECM < 1.08V for time > 1.5 secs P0108: Voltage at ECM > 4.98V for time > 1.5 secs Sensor failure The MIL will be illuminated if the faults are present for 2 consecutive trips Page 24

25 Intake Air Temperature P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance P0112 Intake Air Temperature Sensor 1 Circuit Low P0113 Intake Air Temperature Sensor 1 Circuit High The combined sensor which measures both Mass Air Flow (MAF) and Intake Air Temperature (IAT) is incorporated into the air box. The IAT sensor is a thermistor device which changes resistance with temperature. As air intake temperature decreases the thermistor resistance value increases, and conversely as air temperature increases so the thermistor resistance value decreases. Sensor connections Sensor Connector ECM Pin ECM Connector 1 IAT Signal E3 48 Way (Centre) 2 IAT Ground J3 48 Way (Centre) 3 Battery Voltage MAF Ground J4 48 Way (Centre) 5 MAF Signal G1 48 Way (Centre) Sensor characteristics IAT -20 C (-4 F) kω IAT 20 C (68 F) kω IAT 60 C (140 F) kω P0111 Noisy sensor check continuous, all other parts of monitor are discreet tests Disable Criteria Stuck Sensor Check: P0101, P0102, P0103 MAF sensor faults Enable Criteria Stuck Sensor Check: Accumulated mass air flow > g MAF change from greater than 15 g/s for 20 seconds to less than 6 g/s for 20 seconds Malfunction Criteria Stuck Sensor Check: Inlet air temperature signal has not changed by more than 20 mv Enable Criteria Noisy Sensor Check: Engine running Malfunction Criteria Noisy Sensor Check: Inlet air temperature erratic by more than 15 C (27 F) for longer than 1.5 secs Enable Criteria Rationality Check, Engine Ambient Soaked: Ignition turned on following a soak period and Ambient Air & Engine Coolant temperatures are within 5ºC (9F) of each other Battery voltage > 10V Cumulative time with engine coolant temperature < 70ºC (158ºF), engine off & ignition on < 60s (time accumulates across drive cycles and is reset if engine coolant temperature > 70ºC (158ºF) and the engine is running. Page 25

26 Malfunction Criteria Rationality Check, Engine Ambient Soaked: Inlet Air Temperature is greater than the Manifold Air Temperature by more than 15ºC (27ºF) or less than by more than 10ºC (18ºF) AND Inlet Air Temperature is greater than the Ambient Air Temperature by more than 15ºC (27ºF) or less than by more than 10ºC (18ºF). Enable Criteria Rationality Check, Engine Hot: Ignition on Battery voltage > 10V Cumulative time with engine coolant temperature < 70ºC (158ºF), engine off & ignition on < 60s (time accumulates across drive cycles and is reset if engine coolant temperature 70ºC (158ºF) and the engine is running. Malfunction Criteria Rationality Check, Engine Hot: Inlet Air temperature is greater than Manifold Air, Ambient Air and Engine Coolant temperatures by more than 15ºC (18ºF) or less than all three sensors by more than 10ºC (27ºF). Sensor wiring or connector damage Sensor failure The MIL will be illuminated if the faults are present for 2 consecutive trips P0112 Engine running Inlet air temperature > 119 C (246 F) for time > 1.5 secs Signal short circuit Sensor failure The MIL will be illuminated if these faults are present for 2 consecutive trips. P0113 Engine running Page 26

27 Inlet air temperature < 40 C ( 40 F) for time > 1.5 secs Signal open circuit Sensor failure The MIL will be illuminated if these faults are present for 2 consecutive trips. Page 27

28 Engine Coolant Temperature P0116 P0117 P0118 Engine Coolant Temperature Circuit Range/Performance Engine Coolant Temperature Circuit Low Engine Coolant Temperature Circuit High The engine coolant temperature sensor is a thermistor device which changes resistance with temperature. As coolant temperature decreases the thermistor resistance value increases, and conversely as coolant temperature increases so the thermistor resistance value decreases. Sensor connections Sensor Connector ECM Pin ECM Connector 1 Ground C3 48 Way (Centre) 2 Signal G2 48 Way (Centre) Sensor characteristics -20 C (-4 F) = KΩ 20 C (68 F) = KΩ 80 C (176 F) = KΩ 110 C (230 F) = KΩ P0116 Noisy sensor check continuous, all other parts of monitor are discreet tests Disable Criteria Excess Time to Warm Up: Enable Criteria Excess Time to Warm Up: Engine running > 1000 seconds Malfunction Criteria Excess Time to Warm Up: Engine coolant temperature < 40 C (104 F) Disable Criteria Noisy Sensor Check: Enable Criteria Noisy Sensor Check: Engine running Malfunction Criteria Noisy Sensor Check: Engine coolant temperature erratic by more than 12 C (22 F) Disable Criteria Stuck Sensor Check: Enable Criteria Stuck Sensor Check: Engine running > 5 secs Sequential test conditions to be meet twice: - Condition 1 Engine speed > 1300rpm for 20s. Condition 2 Vehicle stationary and idling for 20s. Transition from Condition 1 to Condition 2 to take less than 20s Malfunction Criteria Stuck Sensor Check: Engine coolant temperature sensor input not changed by more than 39mV Page 28

29 Enable Criteria Rationality Check: Ignition on Battery voltage > 10V Cumulative time with engine coolant temperature < 70degC, engine off & ignition on < 60s (time accumulates across drive cycles and is reset if engine coolant temperature > 70degC and the engine is running. Malfunction Criteria Rationality Check: Inlet Air & Manifold Air temperatures are within 5ºC (9ºF) of each other and the Engine Coolant temperature is greater than both by more than 10ºC (18ºF) or less than both by more than 10ºC (18ºF). Note for the Engine Coolant temperature to be diagnosed as to high, the vehicle must be concerned to hot soak at the end of the previous drive cycle. Inlet Air & Ambient Air temperatures are within 5ºC (9ºF) of each other and the Engine Coolant temperature is greater than both by more than 10ºC (18ºF) or less than both by more than 10ºC (18ºF) Engine Coolant temperature is less than Inlet Air, Manifold Air and Ambient Air temperatures by more than 10ºC. Sensor wiring Sensor failure Thermostat failure The MIL will be illuminated if these faults are present for 2 consecutive trips. P0117 Engine running Coolant temperature > 119 C (246 F) for time > 1.5 secs Signal short circuit Sensor failure Thermostat failure Cooling system problem The MIL will be illuminated if these faults are present for 2 consecutive trips. P0118 Engine running Page 29

30 Coolant temperature > -38 C (-36 F) for time > 1.5 secs Signal open circuit Sensor failure The MIL will be illuminated if these faults are present for 2 consecutive trips. Page 30

31 Throttle Position P0122 Throttle Position Sensor 'A' Circuit Low P0123 Throttle Position Sensor 'A' Circuit High P0222 Throttle Position Sensor B Circuit Low P0223 Throttle Position Sensor B Circuit High The throttle position sensor (TPS) is mounted on the throttle body, and detects the opening angle of the throttle valve. The TPS has 2 sensor circuits, each of which transmits a signal, VTA1 and VTA2. VTA1 is used to detect the throttle valve angle and VTA2 is used to detect malfunctions in VTA1. The sensor signal voltages vary between 0 V and 5 V in proportion to the throttle valve opening angle, and are transmitted to the VTA terminals of the ECM. Sensor connections Sensor Connector ECM Pin ECM Connector 1 ETB A M1 48 Way (Centre) 2 ETB B L2 48 Way (Centre) 3 Ground C4 48 Way (Centre) 4 TPS 1B Signal F3 48 Way (Centre) 5 TPS 1A/B V Ref E4 48 Way (Centre) 6 TPS 1A Signal F2 48 Way (Centre) Sensor characteristics 0% = V ± 5% 100% = V ± 5% P0122. Signal voltage < 0.635V Signal short circuit Reference voltage open circuit Reference voltage short to ground Sensor failure The MIL will be illuminated if fault is present. P0123. Page 31

32 Signal voltage > 4.765V Signal open circuit Reference voltage open circuit Reference voltage short to ground Sensor failure The MIL will be illuminated if fault is present. P0222. Signal voltage < 2.146V Signal short circuit Reference voltage open circuit Reference voltage short to ground Sensor failure The MIL will be illuminated if fault is present. P0223. Signal voltage > 4.985V Signal open circuit Reference voltage open circuit Reference voltage short to ground Sensor failure Page 32

33 The MIL will be illuminated if fault is present. Notes: A maximum throttle opening of 15% may be imposed due to a single code. In the case of multiple codes, a mechanically sprung 7% opening may be applied. Page 33

34 Coolant Thermostat (USA only) P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) The thermostat diagnostic is enabled after each cold engine start, and monitors the rate of temperature rise during warm up relative to the measured engine air flow to check thermostat functioning correctly (i.e not stuck open). P0116, P0117, P0118 Engine Coolant Temperature sensor faults Engine running Start-up Coolant Temperature > -10 C (14 F) Start-up Coolant Temperature < 60 C (140 F) Coolant Temperature does not reach 70 C (158 F) within specific total airflow, during which time the vehicle must be above 20mph for 50% of this warm up time. Thermostat failure Diagnostic Masks: The MIL will be illuminated if the fault is present for 2 consecutive trips. Page 34

35 O2 Sensor (Pre Catalyst) P0131 O2 Sensor 1 Circuit Low Voltage (Bank 1) P0132 O2 Sensor 1 Circuit High Voltage (Bank 1) P0133 O2 Sensor 1 Circuit Slow Response (Bank 1) P0134 O2 Sensor 1 Circuit No Activity Detected (Bank 1) P0135 O2 Sensor 1 Heater Circuit (Bank 1) P0151 O2 Sensor 1 Circuit Low Voltage (Bank 2) P0152 O2 Sensor 1 Circuit High Voltage (Bank 2) P0153 O2 Sensor 1 Circuit Slow Response (Bank 2) P0154 O2 Sensor 1 Circuit No Activity Detected (Bank 2) P0155 O2 Sensor 1 Heater Circuit (Bank 2) The oxygen sensors separately monitor the oxygen content in the exhaust gases of each bank of the engine. Each sensor is electrically heated to improve response after start. The sensor consists of a zirconia electrode between two platinum plates. When zirconia comes into contact with oxygen, it becomes an electrical conductor. The exhaust gases pass through louvers in the sensor. One plate is in contact with the outside air and the other plate is in contact with the exhaust gases. The platinum plate in contact with the air is electrically negative due to the oxygen in the atmosphere and the plate in contact with the exhaust gases is electrically positive. This will cause a difference in electrical potential to develop between the two plates. Thus the voltage across the platinum plates ranges approximately from 100 millivolts to 900 millivolts, depending on the oxygen content of the exhaust gases. Thus when the air/fuel mixture is rich, the oxygen sensor output will be high. If the air/fuel mixture is lean, the oxygen sensor output will be low. Sensor connections Sensor Connector ECM Pin ECM Connector 1 Bank 1 Signal G3 48 Way (Centre) 2 Bank 1 Ground J2 48 Way (Centre) 3 Bank 1 Heater H3 48 Way (Centre) 4 Bank 1 Battery Voltage Bank 2 Signal G4 48 Way (Centre) 2 Bank 2 Ground J2 48 Way (Centre) 3 Bank 2 Heater H4 48 Way (Centre) 4 Bank 2 Battery Voltage - - Sensor characteristics Normal operating range is mV P0131 (Bank1) or P0151 (Bank2). DFCO (Deceleration Fuel Cut Off) AE DE (Acceleration Enrichment Deceleration Enleanment) Misfire Engine running Failure Criteria: Sensor voltage < 15mV for more than 1.5 seconds consecutively for a specified number of times. Page 35

36 Low fuel pressure (Lean mixture) Malfunctioning sensor External water on sensor Sensor wire shorted to ground The MIL will be illuminated if these faults are present for 2 consecutive trips. P0132 (Bank1) or P0152 (Bank2). Engine running Sensor voltage > 1200mV for more than 1.5 seconds consecutively for a specified number of times. High fuel pressure (Rich mixture) Leaking or shorted injector Purge valve fault Oxygen sensor contamination Engine oil contamination Sensor wire shorted to heater voltage The MIL will be illuminated if these faults are present for 2 consecutive trips. P0133 (Bank1) or P0153 (Bank2). P0116, P0117, P0118 Coolant temperature sensor faults P0101, P0102, P0103 MAF sensor faults P0335, P0500 Crank or vehicle speed faults P0131, P0132, P0134, P0135 Pre catalyst oxygen sensor faults for Bank1 checks P0151, P0152, P0154, P0155 Pre catalyst oxygen sensor faults for Bank2 checks Vehicle speed between km/h (158.5 mph) MAF per stroke between mg Engine speed between rpm Engine run time > 200 seconds Coolant temperature > 60 C (140 F) Closed loop fuelling enabled Monitored until the required amount of switches (30) in both directions has been achieved or 130 seconds has elapsed. Page 36

37 Set when the sensor fails to switch from a Lean to a Rich condition or switch from a Rich to a Lean condition in a sufficiently timely manner. A selection of switches is used to determine the average times. Sensor connector and wiring should be checked for corrosion and loose connections Sensor contaminated, possibly from fuel, improper use of RTV, engine oil or coolant The MIL will be illuminated if these faults are present for 2 consecutive trips. P0134 (Bank1) or P0154 (Bank2) Until either passed or failed. Engine run time > 30 seconds Engine is not at idle Engine is in closed loop fuel control O2 sensor ready Set when the sensor fails to switch above 600mV and below 322mV within a 60 second period. Sensor connector and wiring should be checked for corrosion and loose connections. Gas leak in exhaust system The MIL will be illuminated if these faults are present for 2 consecutive trips. P0135, P0155 Engine run time > 20 seconds Set when the heater output is greater than 1900mA or less than 250mA for 1.5 seconds, for 40 consecutive checks. Sensor connector and wiring should be checked for corrosion and loose connections. The MIL will be illuminated if these faults are present for 2 consecutive trips. Page 37