L (LLY) when used in: Silverado, Sierra, Express, Savana, G30 Cutaway, P30 Chassis ENGINE DIAGNOSTIC PARAMETERS

Transcription

1 SESED PRMETER Crankshaft Position (CKP)- Camshaft Position (CMP) Correlation Turbocharger oost Control Position ot Learned Turbocharger oost Control Solenoid L (LLY) when used in: Silverado, Sierra, Express, Savana, G30 Cutaway, P30 Chassis EGIE DIGOSTIC PRMETERS FULT CCEPTLE OPERTIG RGE D RTIOLITY P00XX Fuel and ir Metering and uxiliary Emission Controls P0016 Calculation of crank position by CKP sensor and CMP sensor disagree by < 6deg crank angle. Detects implausible camshaft/crankshaft sensor correlation by comparing the differences between calculated camshaft and crankshaft positions. P003 Position of the vanes opened during a learn : vane position > 5.54%, vane position < 36.94% Position of the vanes closed during a learn : vane position >69.92%, vane position < 95.60%. Detects in range vane position errors during a vane sweep to learn min and max vane positions. PRIMRY MLFUCTIO DETECTIO PRMETERS PTH 1 ) Difference between CKP position as calculated by CKP sensor and CMP sensor is >= 6 degrees crank angle. PTH 2 ) Difference between CKP position as calculated by CKP sensor and CMP sensor is < 6 degrees crank angle, but the CMP position tolerance is > 12 degrees (cam). CMP position tolerance is the error between TDC and first edge of cam detection. Prevents false Position of the vanes opened during a learn : vane position < 5.54%, vane position > 36.94% Position of the vanes closed during a learn : vane position <69.92%, vane position > 95.60% P0045 determines the determines faults (open/short/no load) do not exist on the the faults (open/short/no load) do exist on the Turbo oost Solenoid Cntrl Circuit. Turbo oost Solenoid Cntrl Circuit. SECODRY PRMETERS D CODITIOS P0335, P0336 DTCs not set Ignition O Engine Speed 50 rpm P117,P118,P2563, P2564,P2565,P2228,P2229 DTCs are not set. is D FREQUECY PTH 1 ) 255 crankshaft increments (60 increments/revolution) PTH 2 ) 5 cam phases (4 phases/cam revolution) conditions true for for 30. Performed Cam sensor (CMP sensor) and Crank sensor (CKP sensor) Turbocharger Vane Position. commanding vanes open or closed during a once per ignition cycle position learn process Injected Fuel <30 mm^3/s 600 rpm< engine speed <750 rpm 0 mph< vehicle speed< 200 kph 71C< Engine Coolant Temp <96C 60 kpa <=aro <=110 kpa Electronic out conditions true for 4 put. Test performed FULT STGE D MIL ILLUMITIO ote Fuel Rail Pressure [FRP] Too Low P Mpa to 198 Mpa Measured Rail Pressure sensor < 15 MPa below Desired rail Pressure. D Measured Rail Pressure sensor > = 22.5 MPa Detects a Low Rail Pressure condition. Measured Rail Pressure sensor > 15 MPa below Desired rail Pressure. Measured Rail Pressure < = 22.5 MPa P0090,P0192,P0193, DTCs are not set Rail Pressure Rail Pressure control in closed loop control. conditions true for 12.5 (closed loop RP control occurs when engine. Test traniations from crank to Run mode) performed Fuel Rail Pressure [FRP] Too High Fuel Pressure Regulator Intake ir Temperature (IT) 2 Circuit Low Intake ir Temperature (IT) 2 Circuit High P Mpa to 198 Mpa Measured Rail Pressure sensor < 20 MPa above Desired rail Pressure. D Measured Rail Pressure sensor < = 189 MPa Detects a High Rail Pressure condition. PTH 1 ) Measured Rail Pressure sensor > 20 MPa above Desired rail Pressure D Rail Pressure Desired Fuel Flow <= 100 mm3/sec. D fuel injection qty > 1 mm3/stroke. PTH 2 ) Measured Rail Pressure sensor > = P0090 determines the determines faults (open/short/no load) do not exist on the the faults do exist on the Fuel Pressure Fuel Pressure Regulator Cntrl Circuit. Regulator Cntrl Circuit. PTH 1 ) open / short to GD / no load ) PTH 2 ) Short to attery P volt to 4.8 volts -40degC to 200 degc Detects a sensor circuit short to ground P volt to 4.8 volts -40degC to 200 degc Detects a sensor circuit short high voltage or a sensor circuit open ir temperature sensor voltage <= 0.10 volt -same as- ir temperature>200degc ir temperature sensor voltage>=4.8 volt -same as- ir temperature<-40degc P0087,P0192,P0193 DTCs are not set Rail Pressure control in closed loop control. (closed loop RP control occurs when engine transitions from crank to Run mode) "Rail Pressure Desired Fuel Flow is calculated based on RPM and FR PTH 1 ) 10 continuous PTH 2 ) 6 continuous conditions true for: PTH1 ) 220 m PTH 2 ) 500 m Test f d ti l conditions true for 1 Test performed 100msec rate Rail Pressure Electronic out put ir temperature sensor ir temperature conditions true for 1 sensor Test performed 100msec rate 2006file16.xls Page 1 of 17

2 EGIE DIGOSTIC PRMETERS SESED PRMETER Mass ir Flow (MF) Performance Mass ir Flow (MF) Circuit Low Mass ir Flow (MF) Circuit High Manifold bsolute Pressure (MP) Performance Manifold bsolute Pressure (MP) Circuit Low Manifold bsolute Pressure (MP) Circuit High Intake ir Temperature (IT) Circuit Low Intake ir Temperature (IT) Circuit High Engine Coolant Temperature (ECT) Performance Engine Coolant Temperature (ECT) Circuit Low Engine Coolant Temperature (ECT) Circuit High FULT CCEPTLE OPERTIG RGE D RTIOLITY P01XX Fuel and ir Metering P kg/hr to 1650 kg/hr. 0.9 < ormalized air flow ratio < 1.5 The normalized air flow ratio is derived by dividing the reference air flow by the actual air flow. P kg/hr to 1650 kg/hr. Uses a low mass air flow reading to indicate a MF sensor circuit open or short to ground. P kg/hr to 1650 kg/hr. Uses a high mass air flow reading to indicate a MF sensor circuit short to voltage. PRIMRY MLFUCTIO DETECTIO PRMETERS P v v (18 kp - 307kPa) aro and MP disagree at key-up by 15kPa Compares MP and aro for in range rationality diag. P v v (18 kp - 307kPa) Detects MP sensor circuit open or short to ground P v v (18 kp - 307kPa) Detects MP sensor circuit short to high voltage P volt to 4.8 volts -40degC to 150 degc Detects a sensor circuit short to ground P volt to 4.8 volts -40degC to 150 degc Detects a sensor circuit short high voltage or a sensor circuit open P0116 absolute value of (Startup Coolant Temperature - Startup ir Temperature 1 ) < 5.3degC. Detects biased Coolant Temperature P V to 4.75 V -40degC to 150 degc Detects a sensor circuit short to ground SECODRY PRMETERS D CODITIOS D FREQUECY ormalized air flow ratio < 0.9 ormalized P0102,P0103,P0107,P0108,P0106,P2228, Mass ir Flow air flow ratio > 1.5 P2229,P0117,P0118,P0112,P0113,P0652, conditions true for 16 P0653,P0642,P0643,P0652,P0653,P0698, Test P0699 performed aro >= 72kPa. -20C <= Coolant temp <=99 C Raw Mass ir Flow < 5.5 kg/hr 500 < RPM < conditions true for 3 Mass ir Flow > 2000 kg/hr conditions true for 3 MP Signal <0.144 v same as 18kpa P0107,P0108,P2228,P2229 DTCs are not set. powered On, RPM < 900. Ignition voltage >11 volts Engine Run time >1sec MP Signal >4.149 v same as 307kpa Engine Run time >1sec Intake ir temperature sensor voltage <= 0.10 volt -same as- ir temperature>150degc Intake ir temperature sensor voltage>=4.8 volt -same as- ir temperature<-40degc PTH 1 ) absolute value of (Startup Coolant Temperature - Startup ir Temperature 1) > 5.3degC D block heater influenced determined to be not true. lock heater influence is true if after 6mins at VSS > 24kph the IT drops 5.3degC from start-up IT. PTH 2 ) absolute value of (Startup Coolant Coolant Temperature voltage <= volt -same as- Coolant Temperature>150degC P0117,P0118, Engine Off Timer > 10hrs, IT > 10deg C, Engine running > 2 P V to 4.75 V -40degC to 150 degc Coolant Temperature voltage >= 4.8 V Detects a sensor circuit short high voltage or a -same assensor circuit open Coolant Temperature >-40 degc conditions true for 10 sec. true for 2 true for 2 conditions true for 1 second Test performed 100msec rate conditions true for 1 second Test performed 100msec rate s on first fail once per key cycle conditions true for 15 second Test performed 100msec rate conditions true for 60 second Test performed 100msec rate Mass ir Flow Mass ir Flow Manifold bsolute Pressure (MP) and aro Manifold bsolute Pressure (MP) Manifold bsolute Pressure (MP) Intake ir temperature sensor Intake ir temperature sensor Coolant Temperature and Intake ir Temperature Coolant Temperature Coolant Temperature FULT STGE D MIL ILLUMITIO ote 2006file16.xls Page 2 of 17

3 SESED PRMETER Engine Coolant Temperature (ECT) elow Thermostat Regulating Temperature Fuel Tempertaure Performance Fuel Temperature Circuit Low Fuel Temperature Circuit High Fuel Rail Pressure [FRP] Performance L (LLY) when used in: Silverado, Sierra, Express, Savana, G30 Cutaway, P30 Chassis EGIE DIGOSTIC PRMETERS FULT CCEPTLE OPERTIG RGE D RTIOLITY P0128 Engine Temperature > 72degC D ambient air temperature > 10 degc Engine Temperature >50 degc D ambient air temperature <= 10 degc. Detects thermostat failures causing engine to run cooler than expected. P0181 absolute value of (Startup Coolant Temperature - Startup Fuel Temperature ) < 10 degc. Detects bias Fuel Temperature P V -4.57V -30degC to 120degC Detects a sensor circuit short to ground P V -4.57V -30degC to 120 degc Detects a sensor short to high voltage or sensor circuit open P V (-7.5 bar) < FRP at engine off < 0.65 V (7.7bar) Detects a biased sensor by determining the FRP sensor voltage to be in the correct range for atmospheric pressure at engine off and with sufficient pressure bleed-off time. PRIMRY MLFUCTIO DETECTIO PRMETERS PTH 1 High Region ) Modeled coolant temp predicts coolant temp should be > 80 deg C D ctual coolant temp is < 72 degc PTH 2 Low Region ) Modeled coolant temp > 55 and ctual coolant temp < 50 degc PTH 1 ) absolute value of (Startup Coolant Temperature - Startup Fuel Temperature ) > 10degC D block heater influenced determined to be not true. lock heater influence is true if after 6mins at VSS > 24kph the IT drops 5.3degC from start-up IT. PTH 2 ) absolute value of (Startup Coolant Fuel temperature<0.07 V - same as - Fuel temperature > 120degC Fuel temperature > 4.72 V - same as - Fuel temperature < -30degC PTH 1 ) FRP voltage < 0.352V ( -7.5 bar) FRP voltage > 0.65V (7.7bar) at initialization PTH 2) FRP voltage < 0.352V (-7.5 bar ) FRP voltage >0.65V (7.7 bar) after engine shutoff with bleed off time. SECODRY PRMETERS D CODITIOS P0128 not yet passed; D P0112, P0113,P0116,P0117,P0118 DTCs are not set PTH 1 High Region ) mbient air temp >10 deg C PTH 2 Low Region ) mbient air temp <=10 deg C '-7 degc<mbient air temp < 100 degc; -40degC < Engine start-up temp < 65degC; Engine is running; P0182,P0183,P0117,P0118 DTCs are not set. Engine Off Timer > 10hrs, IT 1> 10deg C, Engine running > 2 PTH 1 ) P0016, P062F, P0116, P0117, P0118, P0192, P0193, P0652, P0653 DTCs are not set, in IITILIZTIO status, coolant temperature drop > 5degC since last driving cycle, 0 degc <= Coolant temperature <= 120 degc, Engine Speed = 0 rpm PTH 2) P0652, P0653, P0191, P0192, P0193 DTCs are not set, Test did not complete at initialization (PTH1), status = FTERRU (engine off, still active), fuel temperature 60 degc, wait timer has elapsed (30-70 after engine shutoff, depending on Chart 2a Rail Pressure at engine shut down (MPa) Engine Off Time () D FREQUECY once from start-up until a pass/fail/disable condition exists. s on first fail once per key cycle conditions true for 1 at conditions true for 1 100msec Failure exists for one sample cycle (cycle location either at initialization (PTH1) or during afterrun (PTH2), depending on entry conditions) Engine coolant temperature sensor. IT 1 sensor Coolant Temperature and Fuel Temperature Fuel temperature sensor Fuel temperature sensor Fuel Rail Pressure (FRP) FULT STGE D MIL ILLUMITIO ote Fuel Rail Pressure [FRP] Circuit Low P V to 4.75 V Detects a Rail Pressure circuit short to ground Rail Pressure voltage < V P0652, P0653 DTCs not set conditions true for 200 msec Rail Pressure 2006file16.xls Page 3 of 17

4 EGIE DIGOSTIC PRMETERS SESED PRMETER Fuel Rail Pressure [FRP] Circuit High Injector 1 FULT CCEPTLE OPERTIG RGE D RTIOLITY P V to 4.75 V Detects a Rail Pressure short to high voltage or sensor circuit open P02XX Fuel and ir Metering P0201 determines that the faults (open/short/no load) do not exist. PRIMRY MLFUCTIO DETECTIO PRMETERS SECODRY PRMETERS D CODITIOS D FREQUECY Rail Pressure voltage > 4.75 V P0652, P0653 DTCs not set conditions true for 200 msec determines that the faults (open/short/no load) do exist Injection event is being attempted for Cly 1 Rail Pressure FULT STGE D MIL ILLUMITIO ote Injector 2 P0202 determines that the faults (open/short/no load) do not exist. determines that the faults (open/short/no load) do exist Injection event is being attempted for Cly 2 Injector 3 P0203 determines that the faults (open/short/no load) do not exist. determines that the faults (open/short/no load) do exist Injection event is being attempted for Cly 3 Injector 4 Injector 5 P0204 determines that the faults (open/short/no load) do not exist. P0205 determines that the faults (open/short/no load) do not exist. determines that the faults (open/short/no load) do exist determines that the faults (open/short/no load) do exist Injection event is being attempted for Cly 4 Injection event is being attempted for Cly 5 Fault exists for 6 msec. cly4 longer detection time required because of unique bank charging time Injector 6 P0206 determines that the faults (open/short/no load) do not exist. determines that the faults (open/short/no load) do exist Injection event is being attempted for Cly 6 Injector 7 P0207 determines that the faults (open/short/no load) do not exist. determines that the faults (open/short/no load) do exist Injection event is being attempted for Cly 7 Injector 8 P0208 determines that the faults (open/short/no load) do not exist. determines that the faults (open/short/no load) do exist Injection event is being attempted for Cly 8 Turbocharger Engine Overboost P0234 Measured oost is < 40kPa above Desired oost. Detects an Overboost condition or a biased high boost sensor. Measured oost is > 40kPa above Desired oost P2564,P2565 DTCs are not set 800 rpm <= Engine RPM <=3600 rpm true for 10 second MP (aka oost ) Turbochager Engine Underboost P0299 Measured oost is < 40kPa below Desired Measured oost is > 40kPa below Desired oost oost Detects an underboost condition or a biased low sensor. P2564,P2565 DTCs are not set 800 rpm <= Engine RPM <=3600 rpm true for 10 second MP (aka oost ) P03XX Ignition System or Misfire Engine Misfire Detected P0300 Misfires do not exist on more than one clyinder Misfires do exist on more than one clyinder s on first fail once per key cycle speed. SW Poling of individual cly 2006file16.xls Page 4 of 17

5 EGIE DIGOSTIC PRMETERS SESED PRMETER FULT CCEPTLE OPERTIG RGE D RTIOLITY Cylinder 1 Misfire Detected P0301 Cylinder #1 RPM >= minimum average cylinder speed after an injection event. The minimum average cly speed is calculated every 2 rotations and represents the average speed that all cly are rotating at after a combustion event. Cylinder 2 Misfire Detected P0302 Cylinder #2 RPM >= minimum average cylinder speed after an injection event. The minimum average cly speed is calculated every 2 rotations and represents the average speed that all cly are rotating at after a combustion event. Cylinder 3 Misfire Detected P0303 Cylinder #3 RPM >= minimum average cylinder speed after an injection event. The minimum average cly speed is calculated every 2 rotations and represents the average speed that all cly are rotating at after a combustion event. Cylinder 4 Misfire Detected P0304 Cylinder #4 RPM >= minimum average cylinder speed after an injection event. The minimum average cly speed is calculated every 2 rotations and represents the average speed that all cly are rotating at after a combustion event. Cylinder 5 Misfire Detected P0305 Cylinder #5 RPM >= minimum average cylinder speed after an injection event. The minimum average cly speed is calculated every 2 rotations and represents the average speed that all cly are rotating at after a combustion event. PRIMRY MLFUCTIO DETECTIO PRMETERS Cylinder #1 RPM < minimum average cylinder speed. after an injection event for at least 180 counts Cylinder #2 RPM < minimum average cylinder speed after an injection event for at least 180 counts Cylinder #3 RPM < minimum average cylinder speed after an injection event for at least 180 counts Cylinder #4 RPM < minimum average cylinder speed after an injection event for at least 180 counts Cylinder #5 RPM < minimum average cylinder speed after an injection event for at least 180 counts SECODRY PRMETERS D CODITIOS 1)P0335,P0336,P0117,P0118,P0201,P020 2, P0203,P0204,P0205,P0206,P0207,P0208, P2146,P2149,P2152,P2155,P0502,P062C 2)Engine is running 3)Coolant temperature >= 40degC 4)500 rpm < Engine speed < 1500 rpm 5) 3 mm3/s < injected fuel < 25 mm3/s 6)vehicle speed<= 3 Kph 7)Engine run time > 10 1)P0335,P0336,P0117,P0118,P0201,P020 2, P0203,P0204,P0205,P0206,P0207,P0208, P2146,P2149,P2152,P2155,P0502,P062C 2)Engine is running 3)Coolant temperature >= 40degC 4)500 rpm < Engine speed < 1500 rpm 5) 3 mm3/s < injected fuel < 25 mm3/s 6)vehicle speed<= 3 Kph 7)Engine run time > 10 1)P0335,P0336,P0117,P0118,P0201,P020 2, P0203,P0204,P0205,P0206,P0207,P0208, P2146,P2149,P2152,P2155,P0502,P062C 2)Engine is running 3)Coolant temperature >= 40degC 4)500 rpm < Engine speed < 1500 rpm 5) 3 mm3/s < injected fuel < 25 mm3/s 6)vehicle speed<= 3 Kph 7)Engine run time > 10 1)P0335,P0336,P0117,P0118,P0201,P020 2, P0203,P0204,P0205,P0206,P0207,P0208, P2146,P2149,P2152,P2155,P0502,P062C 2)Engine is running 3)Coolant temperature >= 40degC 4)500 rpm < Engine speed < 1500 rpm 5) 3 mm3/s < injected fuel < 25 mm3/s 6)vehicle speed<= 3 Kph 7)Engine run time > 10 1)P0335,P0336,P0117,P0118,P0201,P020 2, P0203,P0204,P0205,P0206,P0207,P0208, P2146,P2149,P2152,P2155,P0502,P062C 2)Engine is running 3)Coolant temperature >= 40degC 4)500 rpm < Engine speed < 1500 rpm 5) 3 mm3/s < injected fuel < 25 mm3/s 6)vehicle speed<= 3 Kph 7)Engine run time > 10 D FREQUECY true for 180 revolutions. Test performend once per key cycle in a total of 440 revolutions Test performend once per key cycle in a total of 440 revolutions Test performend once per key cycle in a total of 440 revolutions Test performend once per key cycle in a total of 440 revolutions Test performend once per key cycle in a total of 440 revolutions speed speed speed speed speed FULT STGE D MIL ILLUMITIO ote 2006file16.xls Page 5 of 17

6 EGIE DIGOSTIC PRMETERS SESED PRMETER FULT CCEPTLE OPERTIG RGE D RTIOLITY Cylinder 6 Misfire Detected P0306 Cylinder #6 RPM >= minimum average cylinder speed after an injection event. The minimum average cly speed is calculated every 2 rotations and represents the average speed that all cly are rotating at after a combustion event. Cylinder 7 Misfire Detected P0307 Cylinder #7 RPM >= minimum average cylinder speed after an injection event. The minimum average cly speed is calculated every 2 rotations and represents the average speed that all cly are rotating at after a combustion event. Cylinder 8 Misfire Detected P0308 Cylinder #8 RPM >= minimum average cylinder speed after an injection event. The minimum average cly speed is calculated every 2 rotations and represents the average speed that all cly are rotating at after a combustion event. Crankshaft Position [CKP] Circuit P0335 Receiving valid signals from CKP sensor while CMP sensor is also sending valid signals. Detects crankshaft sensor circuit failure. PRIMRY MLFUCTIO DETECTIO PRMETERS Cylinder #6 RPM < minimum average cylinder speed after an injection event for at least 180 counts Cylinder #7 RPM < minimum average cylinder speed after an injection event for at least 180 counts Cylinder #8 RPM < minimum average cylinder speed after an injection event for at least 180 counts CKP edge detection status = FLSE (no digital edge transitions measured in CKP signal.) CKP signal does not match calibrated pattern SECODRY PRMETERS D CODITIOS 1)P0335,P0336,P0117,P0118,P0201,P020 2, P0203,P0204,P0205,P0206,P0207,P0208, P2146,P2149,P2152,P2155,P0502,P062C 2)Engine is running 3)Coolant temperature >= 40degC 4)500 rpm < Engine speed < 1500 rpm 5) 3 mm3/s < injected fuel < 25 mm3/s 6)vehicle speed<= 3 Kph 7)Engine run time > 10 1)P0335,P0336,P0117,P0118,P0201,P020 2, P0203,P0204,P0205,P0206,P0207,P0208, P2146,P2149,P2152,P2155,P0502,P062C 2)Engine is running 3)Coolant temperature >= 40degC 4)500 rpm < Engine speed < 1500 rpm 5) 3 mm3/s < injected fuel < 25 mm3/s 6)vehicle speed<= 3 Kph 7)Engine run time > 10 1)P0335,P0336,P0117,P0118,P0201,P020 2, P0203,P0204,P0205,P0206,P0207,P0208, P2146,P2149,P2152,P2155,P0502,P062C 2)Engine is running 3)Coolant temperature >= 40degC 4)500 rpm < Engine speed < 1500 rpm 5) 3 mm3/s < injected fuel < 25 mm3/s 6)vehicle speed<= 3 Kph 7)Engine run time > 10 P0652, P0653 not set Ignition is O Engine is running D FREQUECY Test performend once per key cycle in a total of 440 revolutions Test performend once per key cycle in a total of 440 revolutions Test performend once per key cycle in a total of 440 revolutions Failure exists for 20 camshaft phases (4 phases per cam revolution) speed speed speed Crankshaft Position (CKP) FULT STGE D MIL ILLUMITIO ote Crankshaft Position [CKP] Performance Camshaft Position [CMP] Circuit Camshaft Position [CMP] Performance Wait to Start Lamp (WTS) P0336 Receiving valid signals from CKP. Detects implausible crankshaft sensor operation (correct pattern not detected). P0340 Receiving valid signals from CMP sensor while CKP sensor is also sending valid signals. Detects camshaft sensor circuit failure..) CKP pattern not yet recognized D no transitions in CKP signal are seen..) o CKP signal transitions detected P0341 Receiving valid signals from CMP. CKP signal pattern detected as calibrated Detects implausible camshaft sensor operation D (correct pattern not detected). CMP pattern OT detected as calibrated. P0381 driver circutry determines that faults (open/short and no load) do not exist on the WTS circuit. P04XX EGR System P0652, P0653 not set Ignition is O, Engine running Engine Speed < 0 rpm for one sample (implies engine CKP speed is being calculated but signals being dropped.) CMP edge detection status = FLSE (no digital P0642, P0643, P0335, P0336 not set edge transitions measured in CMP signal.) Ignition is O CMP signal does not match calibrated pattern Engine Speed 50 rpm (implies engine driver circutry determines faults (open/short and no load) do exist on the WTS circuit. crankshaft speed recognized) P0335, P0336 not set Ignition is O Engine Speed 50 rpm (implies engine crankshaft speed recognized) Lamp must be commanded on for short to battery/open faults. Lamp must be commanded off for shot to ground/no load.) Failure exists for 312 crankshaft increments.) Failure exists for 312 increments (elapsed from.) D Failure exists for 132 crankshaft increments Failure exists for 240 crankshaft (CKP) increments. Failure exists for 3 sec. Monitoring is continuos Crankshaft Position (CKP) Camshaft Position (CMP) Camshaft Position (CMP) Sensing circuity in the out put drver electronics. 2006file16.xls Page 6 of 17

7 EGIE DIGOSTIC PRMETERS SESED PRMETER Exhaust Gas Recirculation(EGR) Flow Insufficient FULT CCEPTLE OPERTIG RGE D RTIOLITY PRIMRY MLFUCTIO DETECTIO PRMETERS P0401 Measured Mass ir Flow values < 60 mg/hub Measured Mass ir Flow values > 60 mg/hub above Desired MF values. Measured MF above Desired MF values verses Desired MF indicates EGR flow. When Measured MF is above Desired MF, EGR flow has been reduced. Detects a low EGR flow condition. SECODRY PRMETERS D CODITIOS P0101,P0102,P0103,P0403,P0405,P0406 EGR ctively being controlled D FREQUECY true for 15 Mass irflow sensor FULT STGE D MIL ILLUMITIO ote Exhaust Gas Recirculation(EGR) Flow Excessive P0402 Measured Mass ir Flow values < 50 mg/hub Measured Mass ir Flow values > 50 mg/hub below Desired MF values. Measured MF below Desired MF values. verses Desired MF indicates EGR flow. When Measured MF is below Desired MF, EGR flow has been increased. Detects a high EGR flow condition. P0101,P0102,P0103,P0403,P0405,P0406 DTCs are not set EGR ctively being controlled true for 15 Mass irflow sensor Exhaust Gas Recirculation (EGR) Solenoid Control Circuit Exhaust Gas Recirculation(EGR) Position Circuit Low P0403 t a 10% or greater EGR duty cycle signal, circuit current > 25 m P v to 4.75 v (0% to 100% position) Detects a sensor circuit Low voltage. t a 10% or greater EGR duty cycle signal, circuit current < 25 m EGR Position sensor <= 254 mv (0% position) Engine Power Up Time > 0.5sec Engine running 10% < EGR Duty Cycle P0698,P0699 DTCs are not set Electronic out true for 30 put true for 3 EGR Position Exhaust Gas Recirculation(EGR) Position Circuit High P v to 4.75 v (0% to 100% position) Detects a sensor circuit High voltage. EGR Position sensor >= 4745 mv (100% position) P0698,P0699 DTCs are not set true for 3 EGR Position Exhaust Gas Recirculation(EGR) Position Performance P046C Delta from target position < = +/- 3% Delta is the difference between desired EGR position and actual EGR position. Detects in range EGR valve position errors. Delta from target position > = +/- 3% P0401,P0402,P0403,P0642,P0643 DTCs are not set EGR ctively being controlled EGR Position conditions true for 5 sec. continously during EGR operation P05XX Vehicle Speed, Idle Control and uxiliary Inputs Vehicle Speed (VSS) bsence of Signal Idle Speed Too Low P0502 VSS inputs received during a monitoring time period < 9.5 sec P0506 ctual Engine Speed < 100 rpm below TargetTarget Idle Speed o VSS input for a monitoring time period > 9.5 sec ctual Engine Speed > 100 rpm below TargetTarget Idle Speed P0117,P0118, Must be a Manual Transmission. Coolant Temperatureconditions true for 45 > 10deg C, Engine Speed > 800,rpm Engine Torque >200 m, PTO not active, o Related fault code set(p0016,p0117,p0118,p0335,p0336) Engine is running Engine RPM > 300 Idle governor is enabled and requesting torque Engine Coolant Temp > 40 degc for 20. Samples taken every 100msec VSS sensor Monitoring Engine Speed 2006file16.xls Page 7 of 17

8 EGIE DIGOSTIC PRMETERS SESED PRMETER Idle Speed Too High Intake ir (I) Heater Feedback Circuit Control Module ot Programmed FULT CCEPTLE OPERTIG RGE D RTIOLITY P0507 ctual Engine Speed < 200 rpm above TargetTarget Idle Speed P0540 P0540 Error Message not received from the Glow Plug Control Module via GML P06XX Computer and uxiliary Outputs P0602 is programmed. PRIMRY MLFUCTIO DETECTIO PRMETERS ctual Engine Speed > 200 rpm above TargetTarget Idle Speed P0540 Error Message received from the Glow Plug Control Module via GML indicating one or more of the conditions below 1)o current detected through the heater grid 2)Low current detected through the heater grid 3)IH is overtemp 4)IH is overvoltage or undervoltage 5)Ground line is detected open 6)IH switch is defective 7)temperature line is open or shorted 8)IH resistance is too high is not programmed (K_Check_Service_Calibration = TRUE.) SECODRY PRMETERS D CODITIOS o Related fault code set(p0016,p0117,p0118,p0335,p0336,) Engine is running Engine RPM > 300 Idle governor is enabled and requesting torque Engine Coolant Temp > 40 degc D FREQUECY for 20. Samples taken every 100msec Monitor time is 10msec. 10msec. Monitoring Engine Speed GML to the FULT STGE D MIL ILLUMITIO Run every key cycle ote SEE TTCHED REFERECE DOCUMET (Pcode P0540)--Page Control Module Internal Performance Control Module nalog to Digital Performance Internal Control Module Engine RPM Performance TPU error on VSS signal P0606 is operating correctly at proper voltage. PTH1: Microprocessor overvoltage is ll internal hardware modules are detected by hardware-based diagnositcs. communicating correctly. Injector power stages PTH2: Microprocessor undervoltage is can be properly shut off by during start-up detected by hardware-based diagnostics. test. Internal watchdog module reports that PTH3: Internal SPI bus communication error microprocessor responds to queries with detected in hardware. correct answers within the correct latency time. PTH4: Redunudant injector shut-off path Injector energizing time is less that 220 tests faulted during engine startup (test to micro. o recoveries have been confirm that can disable injection triggered by hardware faults. successfully). PTH5: Internal watchdog module (seperate HW) reports calculation and/or timing error with microprocessor. PTH6: Injector on-time > 220 micro (i.e. still torque-producing) is still being commanded after the driver has released the accelerator pedal and all applicable debounce timers that account for torque interventions have elapsed P060 DC is correctly converting signals within the correct time periods. P061C Main and redundant engine speed calculations agree. Detects failure in engine speed calculation through redundant calculation P062C Electronic circuitry determines that faults related to the TPU chip used to calculate Vehicle speed do not exist. Converted DC voltage from special channel connected to 3.5V microprocessor supply >= 3.87V <= 3.37V Engine-speed sychronous DC queues have not updated within a 60 ms timeout Time synchronous queues have not updated since the last DC cycle The PP2 voltage (which is periodically set to Difference between CKP engine speed and redundantly-calculated engine speed > 320 rpm Electronic circuitry determines that faults related to the TPU chip used to calculate Vehicle speed do exist. PTH1: one. PTH2: one. PTH3: one. PTH4: in "IITILIZTIO" state. PTH5: one. PTH6: ccelerator pedal position = 0, Debounce time for accessory compentation (==200 ms) elapsed, engine speed governor inactive, low-idle speed governor inactive, PTO off, gearbox torque requests = 0, starter inactive, cruise control inactive. ctive surge damper debounce time (==700ms) elapsed. PTH7: one. powered up Engine speed >= 400rpm for engine -speed sync DC queue test PP2 test impulse carried out for PP2 voltage check test PTH1: Continuous LL: Internal PTH2: Continuous Hardware Fault PTH3: Continuous Detection PTH4: Continuous PTH5: Failure counter exceeds 5 times. PTH6: Failure exists for 280 ms. PTH7: Continuous Continuous Engine speed < 1300 rpm. Failure exists for 880 ms. Failure exists for 1 sec. Monitoring is continuos nalog to Digital Converter Crankshaft Position (CKP) electronic circuitry 2006file16.xls Page 8 of 17

9 EGIE DIGOSTIC PRMETERS SESED PRMETER Control Module Long Term Memory Performance FULT CCEPTLE OPERTIG RGE D RTIOLITY P062F Each data block of memory is read for a check sum error and flags a fault is found. PRIMRY MLFUCTIO DETECTIO PRMETERS SECODRY PRMETERS D CODITIOS D FREQUECY once at key-up Hardware Fault Detection FULT STGE D MIL ILLUMITIO ote 5 Volt Reference 1 Circuit Low P V to 5.1V Detects circuit faults which lower the 5V reference 1 supply voltage out of regulation 5 Volt Reference 1 < 4.86V Monitor time is 160msec. Continuous Hardware Fault Detection 5 Volt Reference 1 Circuit High P V to 5.1V Detects circuit faults which raise the 5V reference 1 supply voltage out of regulation 5 Volt Reference 1 > 5.1V Monitor time is 160msec. Continuous Hardware Fault Detection Glow Plug Control Module Performance Malfunction Indicator Lamp (MIL) 5 Volt Reference 2 Circuit Low P064C P064C Error Message not received from the Glow Plug Control Module via GML P064C Error Message received from the Glow Plug Control Module via GML indicating one or more of the conditions below; 1) ny of the 8 glow plug switches is defective 2)o IG1 voltage 3)GPCM is overtemp 4)GPCM is overvoltage or undervoltage 5)Internal voltage supply to the Intake ir heater is too low 6)Difference between IG1 and Kl 30 (attery) voltage is too high 7)Difference between battery voltage measured by and battery voltage measured by the GPCM is too high P0650 driver circutry determines that driver circutry determines faults (open/short and no load) do not exist on faults (open/short and no load) do exist on the the MIL circuit. MIL circuit. P V to 5.1V Detects circuit faults which lower the 5V reference 2 supply voltage out of regulation Lamp must be commanded on for short to battery/open faults. Lamp must be commanded off for shot to ground/no load Monitor time is 3000msec. Frequency is every 250msec. Fault exists for 3 sec monitored continuosly 5 Volt Reference 2 < 4.86V Monitor time is 160msec. Continuous GML to the electronic circuitry Hardware Fault Detection SEE TTCHED REFERECE DOCUMET (P-code P064C)---Page Volt Reference 2 Circuit High P V to 5.1V Detects circuit faults which raise the 5V reference 2 supply voltage out of regulation 5 Volt Reference 2 > 5.1V Monitor time is 160msec. Continuous Hardware Fault Detection Cylinder #1 Glow Plug Cylinder #2 Glow Plug Cylinder #3 Glow Plug P0671 P0671 Error Message not received from the Glow Plug Control Module via GML indicating an error on Cyl #1 Glow Plug P0672 P0672 Error Message not received from the Glow Plug Control Module via GML indicating an error on Cyl #2 Glow Plug P0673 P0673 Error Message not received from the Glow Plug Control Module via GML indicating an error on Cyl #3 Glow Plug 1)Glow Plug line is open 2)Glow Plug line is shorted 3)Glow Plug line high resistance 4)Glow Plug line low resistance SEE "GPCM Cert Doc" worksheet 1)Glow Plug line is open 2)Glow Plug line is shorted 3)Glow Plug line high resistance 4)Glow Plug line low resistance SEE "GPCM Cert Doc" worksheet 1)Glow Plug line is open 2)Glow Plug line is shorted 3)Glow Plug line high resistance 4)Glow Plug line low resistance SEE "GPCM Cert Doc" worksheet Glow plugs commanded on Glow plugs commanded on Glow plugs commanded on Monitor time is 1 sec. 250msec. Monitor time is 1 sec. 250msec. Monitor time is 1 sec. 250msec. GML to the GPCM detects the GML to the GML to the SEE TTCHED REFERECE DOCUMET (P-code P0671-P0678)-- Page SEE TTCHED REFERECE DOCUMET (P-code P0671-P0678)-- Page SEE TTCHED REFERECE DOCUMET (P-code P0671-P0678)-- Page file16.xls Page 9 of 17

10 EGIE DIGOSTIC PRMETERS SESED PRMETER Cylinder #4 Glow Plug Cylinder #5 Glow Plug Cylinder #6 Glow Plug Cylinder #7 Glow Plug Cylinder #8 Glow Plug 5 Volt Reference 3 Circuit Low FULT CCEPTLE OPERTIG RGE D RTIOLITY P0674 P0674 Error Message not received from the Glow Plug Control Module via GML indicating an error on Cyl #4 Glow Plug P0675 P0675 Error Message not received from the Glow Plug Control Module via GML indicating an error on Cyl #5 Glow Plug P0676 P0676 Error Message not received from the Glow Plug Control Module via GML indicating an error on Cyl #6 Glow Plug P0677 P0677 Error Message not received from the Glow Plug Control Module via GML indicating an error on Cyl #7 Glow Plug P0678 P0678 Error Message not received from the Glow Plug Control Module via GML indicating an error on Cyl #8 Glow Plug P V to 5.1V Detects circuit faults which lower the 5V reference 3 supply voltage out of regulation PRIMRY MLFUCTIO DETECTIO PRMETERS 1)Glow Plug line is open 2)Glow Plug line is shorted 3)Glow Plug line high resistance 4)Glow Plug line low resistance SEE "GPCM Cert Doc" worksheet 1)Glow Plug line is open 2)Glow Plug line is shorted 3)Glow Plug line high resistance 4)Glow Plug line low resistance SEE "GPCM Cert Doc" worksheet 1)Glow Plug line is open 2)Glow Plug line is shorted 3)Glow Plug line high resistance 4)Glow Plug line low resistance SEE "GPCM Cert Doc" worksheet 1)Glow Plug line is open 2)Glow Plug line is shorted 3)Glow Plug line high resistance 4)Glow Plug line low resistance SEE "GPCM Cert Doc" worksheet 1)Glow Plug line is open 2)Glow Plug line is shorted 3)Glow Plug line high resistance 4)Glow Plug line low resistance SEE "GPCM Cert Doc" worksheet SECODRY PRMETERS D CODITIOS Glow plugs commanded on Glow plugs commanded on Glow plugs commanded on Glow plugs commanded on Glow plugs commanded on D FREQUECY Monitor time is 1 sec. 250msec. Monitor time is 1 sec. 250msec. Monitor time is 1 sec. 250msec. Monitor time is 1 sec. 250msec. Monitor time is 1 sec. 250msec. 5 Volt Reference 3 < 4.86V Monitor time is 160msec. Continuous GML to the GML to the GML to the GML to the GML to the Hardware Fault Detection FULT STGE D MIL ote ILLUMITIO SEE TTCHED REFERECE DOCUMET (P-code P0671-P0678)-- Page SEE TTCHED REFERECE DOCUMET (P-code P0671-P0678)-- Page SEE TTCHED REFERECE DOCUMET (P-code P0671-P0678)-- Page SEE TTCHED REFERECE DOCUMET (P-code P0671-P0678)-- Page SEE TTCHED REFERECE DOCUMET (P-code P0671-P0678)-- Page Volt Reference 3 Circuit High P V to 5.1V Detects circuit faults which raise the 5V reference 3 supply voltage out of regulation 5 Volt Reference 3 > 5.1V Monitor time is 160msec. Continuous Hardware Fault Detection P07XX-P08XX Transmission Transmission Control Module (TCM) Requested MIL Illumination P0700 Serial Data communication from the TCM indicates a fault exists with the transmission. Serial Data communication from the TCM indicates no faults exists with the transmission. active on first message received. Monitored continuosly GML us Park/eutral Position (PP) Switch Circuit Low Park/eutral Position (PP) Switch Circuit High P0851 GML Message for PP position indicates park nuetral position and agrees with sensed position based on PP switch inputs to P0852 sensed position based on PP switch inputs to indacates not park or nuetral. GML Message for PP position indicates park nuetral and dis-agrees with sensed position based on PP switch inputs to sensed position based on PP switch inputs to indacates park or nuetral. P12XX-P22XX Fuel and ir Metering and uxiliary Emission Controls 11v < attery voltage < 18v, o GML error messages, P0852 not active Engine speed > 650rpm, Vehicle speed > 24kPH, ctual Engine Torque > 120 newton meters, 11v < attery voltage < 18v, o GML error messages, P0851 not active, PPS > 6% Failure being transmitted for 5 sec. Checked continuosly Failure being transmitted for 5 sec. Checked continuosly GML, PP switch inputs to GML, PP switch inputs to 2006file16.xls Page 10 of 17

11 SESED PRMETER Engine Calibration Information ot Programmed GPCM ccelerator Pedal Position (PP) 1 Circuit Low ccelerator Pedal Position (PP) 1 Circuit High ccelerator Pedal Position (PP) 2 Circuit Low ccelerator Pedal Position (PP) 2 Circuit High ccelerator Pedal Position (PP) 1-2 Correlation Injector Positive Group L (LLY) when used in: Silverado, Sierra, Express, Savana, G30 Cutaway, P30 Chassis EGIE DIGOSTIC PRMETERS FULT CCEPTLE OPERTIG RGE D RTIOLITY P160C P160C Error Message not received from the Glow Plug Control Module via GML P volt to 4.75 volts Detects a sensor circuit short to ground P volt to 4.75 volts Detects a sensor circuit short high voltage or a sensor circuit open P volt to 2.5 volts Detects a sensor circuit short to ground PRIMRY MLFUCTIO DETECTIO PRMETERS P160C Error Message received from the Glow Plug Control Module via GML indicating IQ data has not been programmed ccelerator pedal supply voltage <= volts SECODRY PRMETERS D CODITIOS D FREQUECY Ignition O Monitor time is 1 second. Frequency is every 160msec. P2122, P2123 are not currently set o sensor supply errors. o -to-d pulse test Ignition O ccelerator pedal supply voltage >= 4.75 volts P2122, P2123 are not currently set o sensor supply errors. o -to-d pulse test Ignition O ccelerator pedal supply voltage <= volts P volt to 2.5 volts ccelerator pedal supply voltage >= 2.5 volts Detects a sensor circuit short high voltage or a sensor circuit open P volt to 4.75 volts ccelerator pedal sensor 1 & 2 differ by more Detects a sensor 1 to sensor 2 correlation error than 2%. P2146 determines the determines faults (open/short/no load) do not exist the faults (open/short/no load) do exist P2127, P2128 are not currently set o sensor supply errors. o -to-d pulse test Ignition O P2127, P2128 are not currently set o sensor supply errors. o -to-d pulse test Ignition O P2122, P2123, P2127, P2128 are not currently set. o sensor supply errors. Ignition O Injection event is being attempted for injectors 1&4 connected to bank 1 conditions true for msec t conditions true for msec t conditions true for msec t conditions true for msec t conditions true for msec t fault and sends GML to the ccelerator pedal sensor 1 ccelerator pedal sensor 1 ccelerator pedal sensor 2 ccelerator pedal sensor 2 ccelerator pedal sensor 1 & 2 FULT STGE D MIL ILLUMITIO C C C C C ote cly4 longer detection time required because of bank charging time. Injector Positive Group 2 P2149 determines the determines faults (open/short/no load) do not exist the faults (open/short/no load) do exist Injection event is being attempted for injectors 7&6 connected to bank 1 Injector Positive Group 3 Injector Positive Group 4 Intake ir Temperature (IT) 1-2 Correlation P2152 determines the determines faults (open/short/no load) do not exist the faults (open/short/no load) do exist P2155 determines the determines faults (open/short/no load) do not exist the faults (open/short/no load) do exist P2199 absolute value of (Startup ir Temperature 2 - Startup ir Temperature 1) < 5.3degC. Detects bias Coolant Temperature absolute value of (Startup ir Temperature 2 - Startup ir Temperature 1) > 5.3degC. Once block heater influenced determined to be not true. absolute value of (Startup ir Temperature 2 - Startup ir Temperature 1) > 100degC Injection event is being attempted for injectors 2&5 connected to bank 1 Injection event is being attempted for injectors 8&3 connected to bank 1 P0112,P0113,P0097,P0098,P0117,P0118 P2199 not currently active this key cycle. Engine Off Timer > 10hrs, IT 1 > 10deg C Engine running Fault exists for 5 msec. conditions true on first failure once per key cycle Intake air temperature sensors 1 and file16.xls Page 11 of 17

12 EGIE DIGOSTIC PRMETERS SESED PRMETER arometric Pressure (RO) Circuit Low Input FULT CCEPTLE OPERTIG RGE D RTIOLITY P v v (60kP - 120kPa) Detects aro sensor circuit open or grounded PRIMRY MLFUCTIO DETECTIO PRMETERS aro Signal <1.5 v SECODRY PRMETERS D CODITIOS P0652,P0653 DTCs not set D FREQUECY true for 800msec arometric Pressure (aro) FULT STGE D MIL ILLUMITIO ote arometric Pressure (RO) Circuit High Input P v v (60kP - 120kPa) Detects aro sensor circuit shorted to high voltage aro Signal >4.8v P0652,P0653 DTCs not set true for 800msec arometric Pressure (aro) P25XX uxiliary Inputs Power Relay Circuit Turbocharger oost Control Position Performance P2510 Relay is responding corectly to command to turn off. Relay is responding incorrectly to command to turn off. P2563 Delta from target turbo vane position < +/- Delta from target turbo vane 15%. Delta is the difference between position > +/- 15%. desired turbo vane position and the actual turbo vane position. Detects turbo vane position error. Engine has tranistioned from start to run or fter run ( Power down) has occurred P0045, P2564 Engine Run time>30 sec conditions!st failure twice a drive cycle Updates to the EEPROM Variables. Turbocharger conditions true for for 5 Vane Position. Turbocharger oost Control Position Circuit Low Turbocharger oost Control Position Circuit High P v to v (0% to 100% position) Detects Turbocharger Vane Position sensor circuit open and shorted to ground P v to v (0% to 100% position) DetectsTurbocharger Vane Position sensor circuit shorted to high voltage voltage Turbocharger Vane Position Signal < 0.277v Turbocharger Vane Position Signal > 4.78v Engine Run time>3sec Engine Run time>3sec condition true for 1 condition true for 1 Turbocharger Vane Position. Turbocharger Vane Position. P26XX Computer and uxiliary Outputs Control Module Ignition Off Timer Performance Fuel Injector Calibration ot Programmed P2610 ignition off time delta = 1sec D ignition off timer >= 0 sec D ignition off timer <= 10 sec D timer is incrementing Detects a faulty Ignition off Timer circuit. P268 Injector Calibration Data (IQ) is programmed in the Ignition off timer reads < 0 sec Ignition off timer reads <=5 sec >10 sec timer unchanged for 60 sec Injector Calibration Data (IQ) is not programmed in the powered up conditions 1st failure once during drive cycle and once at after run SW calculation SW calculation conditions 1st failure once at key-up UXXXX Communications Lost communications with Transmission Control System U0101 reports no loss of communication with the TCM PTH 1)The fails to receive messages $19D, $0F9, $1F5, $4C9 or $199 PTH 2) Rolling counts for messages $199 or $19D are not increasing by one. Monitor time is 1000msec. Frequency is every 160msec. C Message from the TCM Lost Communications with Glow Plug Control Module U0106 reports no loss of communication with the GPCM PTH 1)The fails to receive message $3D. PTH 2)GPCM reports message $39 from is missing Monitor time is 1000msec. Frequency is every 160msec. Message from GPCM and signal indicating loss of GPCM message 2006file16.xls Page 12 of 17

13 EGIE DIGOSTIC PRMETERS SESED PRMETER FULT CCEPTLE OPERTIG RGE D RTIOLITY PRIMRY MLFUCTIO DETECTIO PRMETERS SECODRY PRMETERS D CODITIOS D FREQUECY FULT STGE D MIL ILLUMITIO ote 2006file16.xls Page 13 of 17

14 EGIE DIGOSTIC PRMETERS SESED PRMETER FULT CCEPTLE OPERTIG RGE D RTIOLITY PRIMRY MLFUCTIO DETECTIO PRMETERS SECODRY PRMETERS D CODITIOS D FREQUECY Reference document for OD codes P0540, P064C and P0671-P0678 FULT STGE D MIL ILLUMITIO ote SESED PRMETER FULT CCEPTLE OPERTIG RGE D RTIOLITY PRIMRY MLFUCTIO DETECTIO PRMETERS SECODRY PRMETERS D CODITIOS IH open P0540 IIH > 20 IIH < 20 and digital response == high USigTemp <= 4.96 Volt (no loss of ground condition) KL30 at IH > 6,9 Volt IG >= 6.9 Voltsignal line digital response is not open signal line digital response is not shorted to ground IH commanded on and proper working this means:- no failure current out of limit IH- no over voltage condition- no over temperature condition - signal line current is not shorted to battery- signal line temperature is not open- signal line IH current out of limit P0540 IIH > 20 IH < 20 and digital response == low USigTemp <= 4.96 Volt (no loss of ground condition) KL30 at IH > 6,9 Volt IG >= 6.9 VoltIH commanded on and proper working this means:- o over voltage condition - o over temperature condition - signal line temperature is not shorted to ground- no failure current out of limit IH- signal line current is not shorted to battery- signal IH over temperature P0540 TIH <80 C and TIH > 80 C - KL30 at IH > 6,9 Volt- USigTemp <= 4.96 Volt (no loss of ground condition)ih commanded on and proper working this means:- no over voltage condition - no failure current out of limit IH- GPCM internal supply for the IH electronic is ok - signal line temperature is not shorted to ground- signal line current is not shorted to battery- signal line Glow Plug switch defect and open P00XX Fuel and ir Metering and uxiliary Emission Controls P064C Glow Plug current > = 4.25 mps, IGP < 4.25 and digital response glow plug == low IG 1 voltage P064C IG 1 HIGH IG 1 LOW ny of the 8 glow plug switches is defective 2)o IG1 voltage 3)GPCM is overtemp 4)GPCM is overvoltage or undervoltage 5)Internal voltage supply to the Intake ir heater is too low 6)Difference between IG1 and Kl 30 (attery) voltage is too high 1)glow plugs are commanded on 2)no over temperature condition 3)no over voltage condition 4)no voltage difference between KL30 and IG 5)voltage KL30 > 7.0 Volts 6)not all 8 glow pugs are in low resistance condition 7)glow plug not disabled because of short 1)glow plugs are commanded on D FREQUECY Monitor time is 10msec. 10msec. Monitor time is 10msec. 10msec. Monitor time is 10msec. 10msec. Monitored by GPCM and message transferred by C Monitored by GPCM and message transferred by C Monitored by GPCM and message transferred by C 5 out of 10 counts. Monitored by Glow Frequency is 500 msec plug switch 5 out of 10 counts. Frequency is 1000 msec Ignition 1 line FULT STGE D MIL ILLUMITIO ote 2006file16.xls Page 14 of 17

15 EGIE DIGOSTIC PRMETERS SESED PRMETER FULT CCEPTLE OPERTIG RGE D RTIOLITY PRIMRY MLFUCTIO DETECTIO PRMETERS GPCM Temperature P064C GPCM Temperature<=123 C GPCM Temperature >123 C IGITIO O SECODRY PRMETERS D CODITIOS D FREQUECY 5 out of 10 counts. Monitored by Glow Frequency is 650 msec plug switch FULT STGE D MIL ILLUMITIO ote GPCM attery (Over) P064C GPCMKL30 <= 16.5 Volt GPCMKL30 > 16.5 Volt 1)glow plugs are commanded on 2)no over temperature condition 3)no over voltage condition 4)no voltage difference between KL30 and IG 5)voltage KL30 > 7.0 Volts 6)not all 8 glow pugs are in low resistance condition 7)glow plug not disabled because of short IGITIO O 5 out of 10 counts. Monitored by Glow Frequency is 130 msec plug switch 1) GPCMIG < 14.0 Volt and GPCMIG > 8.0 Volt GPCM attery (Under) P064C GPCMKL30 >= 6.0 Volt GPCMKL30 < 6.0 Volt IGITIO O glow plugs are commanded on 2)no over temperature condition 3)no over voltage condition 4)no voltage difference between KL30 and IG 5)voltage KL30 > 7.0 Volts 6)not all 8 glow pugs are in low resistance condition 5 out of 10 counts. Monitored by Glow Frequency is 520 msec plug switch 1) GPCMIG < 14.0 Volt and GPCMIG > 8.0 Volt 9.0 Volt voltage difference KL30 and Ignition too high P064C absolute value of voltage difference: VGPCM_KL30 - VGPCM_IG <= 5 Volt absolute value of voltage difference: VGPCM_KL30 - VGPCM_IG > 5 Volt glow plugs are commanded on 2)no over temperature condition 3)no over voltage condition 4)no voltage difference between KL30 and IG 5)voltage KL30 > 7.0 Volts 6)not all 8 glow pugs are in low resistance condition IGITIO O 5 out of 10 counts. Monitored by Glow Frequency is 650 msec plug switch 1)VGPCM_KL30 > 6.0 Volt and VGPCM_IG > 4 Volt glow plugs are commanded on 2)no over temperature condition 3)no over voltage condition 4)no voltage difference between KL30 and IG 5)voltage KL30 > 7.0 Volts 6)not all 8 glow pugs are in low resistance condition 2006file16.xls Page 15 of 17