Reference Voltage (VREF )

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Kerry McCoy
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1 Page 1 of 25 Year = 2013 Model = F-150 Engine = 3.5L VIN = 1FTFW1ET2DFA96265 IDS Version = t Available Reference Voltage ( ) This pinpoint test is intended to diagnose the following: harness circuits: APP1, APP2, APPRTN1, APPRTN2, ETCREF, ETCRTN, SIGRTN and accelerator pedal position (APP) sensor (9F836) air conditioning pressure (ACP) transducer sensor (19D594) crankshaft position ( CKP) sensor (6C315) camshaft position ( CMP) sensor (6B288) EGR system module ( ESM) (9Y456) electronic throttle body throttle position sensor ( ETBTPS) (9E928) fuel pressure sensor (9F972) fuel rail pressure ( FRP) sensor (6B288) fuel rail pressure temperature ( FRPT) sensor (9G756) fuel tank pressure ( FTP) sensor (9C052) generator current sensor (14B357) manifold absolute pressure ( MAP) sensor (9F479) manifold absolute pressure ( MAP )/intake air temperature 2 ( IAT2) sensor (9F479) power steering pressure ( PSP) sensor (3N824) turbocharger boost pressure ( TCBP )/charge air cooler temperature ( CACT) sensor (9F479) turbocharger intake pressure and temperature ( TCIPT) sensor wastegate vacuum sensor (9F479) powertrain control module ( PCM) (12A650)

Page 2 of 25 Accelerator Pedal Position (APP) Sensor Connector APPRTN1 (Accelerator Pedal Position Return 1) 3 APPRTN2 (Accelerator Pedal Position Return 2) 4 APP1 (Accelerator Pedal Position

2 Page 2 of 25 Accelerator Pedal Position (APP) Sensor Connector APPRTN1 (Accelerator Pedal Position Return 1) 3 APPRTN2 (Accelerator Pedal Position Return 2) 4 APP1 (Accelerator Pedal Position Reference Voltage 1) 1 APP2 (Accelerator Pedal Position Reference Voltage 2) 6 Air Conditioning Pressure (ACP) Transducer Sensor Connector (Reference Voltage) 3 SIGRTN (Signal Return) 1 Camshaft Position 11 (CMP11) Sensor Connector

3 Page 3 of 25 SIGRTN (Signal Return) 2 Camshaft Position 12 (CMP12) Sensor Connector SIGRTN (Signal Return) 2 Crankshaft Position (CKP) Sensor Connector

4 Page 4 of 25 (Reference Voltage) 3 SIGRTN (Signal Return) 2 Clutch Pedal Position (CPP) Sensor Connector (Reference Voltage) 2 SIGRTN (Signal Return) 4 EGR System Module (ESM) Connector

5 Page 5 of 25 (Reference Voltage) 2 SIGRTN (Signal Return) 6 Fuel Rail Pressure (FRP) Sensor Connector (Reference Voltage) 1 SIGRTN (Signal Return) 3 Fuel Tank Pressure (FTP) Sensor Connector

6 Page 6 of 25 SIGRTN (Signal Return) 2 (Reference Voltage) 3 Generator Current Sensor Connector SIGRTN (Signal Return) 2 (Reference Voltage) 1 Manifold Absolute Pressure (MAP) Sensor Connector

7 Page 7 of 25 (Reference Voltage) 2 SIGRTN (Signal Return) 4 Manifold Absolute Pressure/Intake Air Temperature 2 (MAP/IAT2) Sensor Connector (Reference Voltage) 2 SIGRTN (Signal Return) 4 Power Steering Pressure (PSP) Sensor Connector

8 Page 8 of 25 SIGRTN (Signal Return) 1 (Reference Voltage) 2 Turbocharger Boost Pressure/Charge Air Cooler Temperature (TCBP/CACT) Sensor Connector (Reference Voltage) 2 SIGRTN (Signal Return) 4 Turbocharger Intake Pressure And Temperature (TCIPT) Sensor Connector

9 Page 9 of 25 (Reference Voltage) 3 SIGRTN (Signal Return) 1 Wastegate Vacuum Sensor Connector (Reference Voltage) 1 SIGRTN (Signal Return) 2 Powertrain Control Module (PCM) Connector - For PCM connector views or reference values, refer to Section 6.

10 Page 10 of 25 ETCREF (Electronic Throttle Control Reference Voltage) E7 APP1 (Accelerator Pedal Position Reference Voltage 1) B12 APP2 (Accelerator Pedal Position Reference Voltage 2) B10 (Reference Voltage) B11 (Reference Voltage) B13 (Reference Voltage) E8 ETCRTN (Electronic Throttle Control Return) E31 APPRTN1 (Accelerator Pedal Position Return 1) B36 APPRTN2 (Accelerator Pedal Position Return 2) B35 SIGRTN (Signal Return) B38 SIGRTN (Signal Return) B37 SIGRTN (Signal Return) B34 SIGRTN (Signal Return) B18 SIGRTN (Signal Return) B17 SIGRTN (Signal Return) B16 SIGRTN (Signal Return) E53 SIGRTN (Signal Return) E32 SIGRTN (Signal Return) E20 VPWR (Vehicle Power) B103 VPWR (Vehicle Power) B102 VPWR (Vehicle Power) B101 SENSORS CONNECTED TO REFERENCE VOLTAGE Applications APP ESM FTP ACP PSP Fuel Pressure Sensor or FRP or FRPT MAP or TCBP/ CACT or MAP/ IAT2 CKP or CMP WVS or TCIPT CPP Generator Current Sensor Mustang 5.8L X X X X X Escape 2.5L X X X X E-Series 4.6L X X X Focus 2.0L GDI X X X X X Escape 1.6L, Escape 2.0L, Focus 2.0L X X X X X X GTDI Edge 2.0L, Explorer 2.0L, F L X X X X X X X X E-Series 5.4L, E- Series 6.8L, Expedition, F L, F-650 / F-750, F- Series Super Duty 6.8L, Mustang 3.7L, Mustang 5.0L, Navigator X X X Transit Connect X X X X X Fiesta X X X F-Series Super Duty 6.2L X X X X

11 Page 11 of 25 Fusion 1.6L Manual Transmission X X X X X X X X Fusion 2.5L X X X X X Explorer 3.5L GTDI, Flex 3.5L GTDI, Fusion 1.6L Automatic Transmission, Fusion 2.0L, MKS 3.5L, MKT X X X X X X 2.0L, MKT 3.5L, MKZ 2.0L, Taurus 2.0L, Taurus 3.5L GTDI Edge 3.5L, Edge 3.7L, Explorer 3.5L TiVCT, Explorer 3.7L, F L, F L, Flex 3.5L TiVCT, MKS 3.7L, MKT 3.7L, MKX, MKZ 3.7L, Taurus 3.5L TiVCT, Taurus 3.7L X X X X

12 Page 12 of 25 Go to C27. Go to C2. C2 : CHECK THE REFERENCE VOLTAGE TO GROUND For ETCREF concerns ETBTPS Connector, ETCREF For APP concerns. APP Sensor Connector, APP1-1 APP2-6 For concerns Suspect Sensor Connector, Is the voltage between V? Go to C26. Go to C3.

13 Page 13 of 25 APP Sensor Connector, APP1-1 APP2-6 For concerns Suspect Sensor Connector, Is the voltage between V? Go to C8. Go to C4.

14 Page 14 of 25

15 Page 15 of 25 - E8 - E8 SIGRTN - E32 SIGRTN - E20 Measure the resistance between: PCM Connector, - B11 - B13 - E8 Are the resistances greater than 10K ohms? Go to C6. REPAIR the short circuit.

16 Page 16 of 25 Are the resistances greater than 10 kohm? Go to C7. REPAIR the short circuit. C7 : CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE For ETCREF concerns PCM Connector, ETCREF - E7 For APP concerns. PCM Connector, APP1 - B12 APP2 - B10 For concerns PCM Connector, - B11 - B13 - E8 Is any voltage present? REPAIR the short circuit. Go to C28.

17 Page 17 of 25 APP2-6 Are the voltages between 4.5 V V? Go to C9. INSTALL a new ETBTPS. REFER to the Workshop Manual Section , Fuel Charging and Controls or Section , Electronic Engine Controls. C9 : CHECK THE REFERENCE VOLTAGE WITH THE APP SENSOR CONNECTED NOTE: If this sensor was used for the measurement in C3, Go to C10 Ignition OFF. APP Sensor connector connected. ETBTPS Connector, ETCREF Go to C10. INSTALL a new APP sensor. REFER to the Workshop Manual Section , Acceleration Control.

18 Page 18 of 25 C11 : CHECK THE REFERENCE VOLTAGE WITH THE MAP SENSOR CONNECTED NOTE: If the vehicle is not equipped with a MAP sensor or if this sensor was used for the measurement in C3, Go to C12 Ignition OFF. MAP Sensor connector connected. Suspect Sensor Connector, Go to C12. INSTALL a new MAP sensor. REFER to the Workshop Manual Section , Electronic Engine Controls. C12 : CHECK THE REFERENCE VOLTAGE WITH THE TCBP/CACT SENSOR CONNECTED NOTE: If the vehicle is not equipped with a TCBP/CACT sensor or if this sensor was used for the measurement in C3, Go to C13 Ignition OFF. TCBP/CACT Sensor connector connected. Suspect Sensor Connector, Go to C13. INSTALL a new TCBP/CACT sensor. REFER to the Workshop Manual Section , Electronic Engine Controls.

19 Page 19 of 25 MAP/IAT2 Sensor connector connected. Suspect Sensor Connector, Go to C14. INSTALL a new MAP/IAT2 sensor. REFER to the Workshop Manual Section , Electronic Engine Controls. C14 : CHECK THE REFERENCE VOLTAGE WITH THE FRP SENSOR CONNECTED NOTE: If the vehicle is not equipped with a FRP sensor or if this sensor was used for the measurement in C3, Go to C15 Ignition OFF. FRP Sensor connector connected. Suspect Sensor Connector, Go to C15. INSTALL a new FRP sensor. REFER to the Workshop Manual Section , Electronic Engine Controls.

20 Page 20 of 25 Go to C16. INSTALL a new FRPT sensor. REFER to the Workshop Manual Section , Electronic Engine Controls. C16 : CHECK THE REFERENCE VOLTAGE WITH THE FTP SENSOR CONNECTED NOTE: If the vehicle is not equipped with a FTP sensor or if this sensor was used for the measurement in C3, Go to C17 Ignition OFF. FTP Sensor connector connected. Suspect Sensor Connector, Go to C17. INSTALL a new FTP sensor. REFER to the Workshop Manual Section , Evaporative Emissions.

21 Page 21 of 25 C18 : CHECK THE REFERENCE VOLTAGE WITH THE FUEL PRESSURE SENSOR CONNECTED NOTE: If the vehicle is not equipped with a fuel pressure sensor or if this sensor was used for the measurement in C3, Go to C19 Ignition OFF. Fuel Pressure Sensor connector connected. Suspect Sensor Connector, Go to C19. INSTALL a new Fuel Pressure Sensor. REFER to the Workshop Manual Section , Fuel Tank and Lines. C19 : CHECK THE REFERENCE VOLTAGE WITH THE CKP SENSOR CONNECTED NOTE: If the vehicle is not equipped with a CKP sensor or if this sensor was used for the measurement in C3, Go to C20 Ignition OFF. CKP Sensor connector connected. Suspect Sensor Connector, Go to C20. INSTALL a new CKP sensor. REFER to the Workshop Manual Section , Electronic Engine Controls.

22 Page 22 of 25 Suspect Sensor Connector, Go to C21. INSTALL a new CMP sensor. REFER to the Workshop Manual Section , Electronic Engine Controls. C21 : CHECK THE REFERENCE VOLTAGE WITH THE TCIPT SENSOR CONNECTED NOTE: If the vehicle is not equipped with a TCIPT sensor or if this sensor was used for the measurement in C3, Go to C22 NOTE: Only measure the circuits that apply to the vehicle being diagnosed Ignition OFF. TCIPT Sensor connector connected. Suspect Sensor Connector, Go to C22. INSTALL a new TCIPT sensor. REFER to the Workshop Manual Section , Electronic Engine Controls.

23 Page 23 of 25 Go to C23. INSTALL a new Wastegate Vacuum Sensor. REFER to the Workshop Manual Section , Electronic Engine Controls. C23 : CHECK THE REFERENCE VOLTAGE WITH THE CPP SENSOR CONNECTED NOTE: If the vehicle is not equipped with a CPP sensor or if this sensor was used for the measurement in C3, Go to C24 NOTE: Only measure the circuits that apply to the vehicle being diagnosed Ignition OFF. CPP Sensor connector connected. Suspect Sensor Connector, Go to C24. INSTALL a new CPP sensor. REFER to the Workshop Manual Section , Electronic Engine Controls.

24 Page 24 of 25 Go to C25. INSTALL a new Generator Current sensor. REFER to the Workshop Manual Section , Battery, Mounting and Cables. C25 : CHECK THE REFERENCE VOLTAGE WITH THE PSP SENSOR CONNECTED Ignition OFF. PSP Sensor connector connected. Suspect Sensor Connector, The concern is intermittent. GO to point Test Z. INSTALL a new PSP sensor. REFER to the Workshop Manual Section , Electronic Engine Controls.

25 Page 25 of 25 SIGRTN SIGRTN SIGRTN SIGRTN SIGRTN SIGRTN SIGRTN - B18 SIGRTN - B17 SIGRTN - B16 SIGRTN - E53 SIGRTN - E32 SIGRTN - E20 Is the resistance less than 5 Ohm? Go to C28. REPAIR the open circuit. C27 : CHECK THE SUSPECT SENSOR FOR AN INTERNAL SHORT Clear the KOEO, KOER, and continuous DTCs. Ignition OFF. Connect the suspect sensor. Carry out the PCM self-test. Is the concern still present? INSTALL a new sensor for the sensor in question. The concern is intermittent. GO to point Test Z. C28 : CHECK FOR CORRECT PCM OPERATION Disconnect all the PCM connectors. Visually inspect for: pushed out pins corrosion Connect all the PCM connectors and make sure they seat correctly. Carry out the PCM self-test. Verify the concern is still present. Is the concern still present? INSTALL a new PCM. REFER to Section 2, Flash Electrically Erasable Programmable Read Only Memory (EEPROM), Programming the VID Block for a Replacement PCM. The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

7/2/2018 PPT DV: Throttle Body Assembly Electronic Throttle Control (ETC) - Gasoline Engines (Powertrain Diagnostics) 2014 Ford Escape Mot

7/2/2018 PPT DV: Throttle Body Assembly Electronic Throttle Control (ETC) - Gasoline Engines (Powertrain Diagnostics) 2014 Ford Escape Mot 2014 Escape 2015 PCED Gasoline Engines SECTION 5: Pinpoint Tests Report a problem with this article Procedure revision date: 07/30/2015 DV: Throttle Body Assembly Electronic Throttle Control (ETC) DV: