Test Procedure
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- AK1 PRELIMINARY DIAGNOSIS NOTE: The presence of DTCs P0243, P0346 or P132A may indicate that the vehicle is operating in derate mode and may experience a loss of power.
Is DTC P0243, P0245, P0246 or P132A present?
Yes No GO to AK2. For performance concerns, GO to Pinpoint Test KA .
For all others, GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . - AK2 CHECK THE VPWR VOLTAGE TO THE COMPONENT
- Ignition OFF.
- For the turbocharger wastegate regulating valve,
- Turbocharger Wastegate Regulating Valve Solenoid connector disconnected.
- Ignition ON, engine OFF.
- Measure the voltage between:
(+) Turbocharger Wastegate Regulating Valve Solenoid Connector, Harness Side (-) VPWR - Pin 1 Ground - For the turbocharger actuator,
- Turbocharger Actuator connector disconnected.
- Ignition ON, engine OFF.
- Measure the voltage between:
(+) Turbocharger Actuator Connector, Harness Side (-) VPWR - Pin 2 Ground
Is the voltage greater than 10 V?
Yes No GO to AK3. REPAIR the open circuit. Clear the PCM DTCs.
REPEAT the self-test. - AK3 CHECK FOR AN OPEN IN THE HARNESS
- Ignition OFF.
- PCM-E connector disconnected.
- For the turbocharger wastegate regulating valve,
- Measure the resistance between:
(+) Turbocharger Wastegate Regulating Valve Solenoid Connector, Harness Side (-) PCM-E Connector, Harness Side TCWRVS - Pin 2 TCWRVS - Pin 1 - For the turbocharger actuator,
- Measure the resistance between:
(+) Turbocharger Actuator Connector, Harness Side (-) PCM-E Connector, Harness Side VGTC - Pin 1 VGTC - Pin 24
Is the resistance less than 5 ohms?
Yes No GO to AK4. REPAIR the open circuit. Clear the PCM DTCs.
REPEAT the self-test. - AK4 CHECK THE CONTROL CIRCUIT FOR A SHORT IN THE HARNESS
- For the turbocharger wastegate regulating valve,
- Measure the resistance between:
(+) Turbocharger Wastegate Regulating Valve Solenoid Connector, Harness Side (-) Turbocharger Wastegate Regulating Valve Solenoid Connector, Harness Side TCWRVS - Pin 2 VPWR - Pin 1 - For the turbocharger actuator,
- Measure the resistance between:
(+) Turbocharger Actuator Connector, Harness Side (-) Turbocharger Actuator Connector, Harness Side VGTC - Pin 1 VPWR - Pin 2
Is the resistance greater than 10K ohms?
Yes No GO to AK5. REPAIR the short circuit. Clear the PCM DTCs.
REPEAT the self-test. - AK5 CHECK FOR CORRECT COMPONENT OPERATION
- Visually inspect for:
- pushed out pins
- corrosion
- Connect the suspect connector and make sure it seats correctly.
- Carry out the PCM self-test and verify the concern is still present.
Is the concern still present?
Yes No INSTALL a new Turbocharger Actuator or Turbocharger Wastegate Regulating Valve Solenoid. REFER to the appropriate Electronic Engine Controls article for turbocharger actuator replacement.
REFER to the appropriate Fuel Charging and Controls article for turbocharger wastegate regulating valve solenoid replacement.
Clear the PCM DTCs. REPEAT the self-test.
If the concern or DTC is still present,
GO to AK6.The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. - Visually inspect for:
- AK6 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?
Yes No INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.