Diagnostic Test
WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR ACTIVE DTC NOTE:
If there are any other Turbocharger Boost Actuator DTCs present, perform the Diagnostics for those DTCs before continuing with this one.
- Turn the ignition on.
- Using the scan tool, erase PCM DTCs.
- Perform several ignition cycles, turning the ignition off for at least 10 seconds between each ignition cycle.
- Start the engine and operate the vehicle through a normal drive cycle.
- Monitor the scan tool for PCM DTCs.
Is the DTC active?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
- CHECK THE TURBO BOOST ACTUATOR (F343) ASD 12-VOLT SUPPLY FOR AN OPEN/HIGH RESISTANCE
- Using a test light connected to ground, check the (F343) ASD 12-Volt Supply circuit at the Turbo Boost Actuator harness connector.
Does the test light illuminate as brightly as it does when connecting directly to the Battery?
Yes
- Go To 3
No
- Repair the (F343) ASD 12-Volt Supply circuit for an open/high resistance.
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
- Using a test light connected to ground, check the (F343) ASD 12-Volt Supply circuit at the Turbo Boost Actuator harness connector.
- CHECK THE TURBO BOOST ACTUATOR (Z909) GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE
- Using a test light connected to Battery Voltage, check the (Z909) Ground circuit at the Turbo Boost Actuator harness connector.
Does the test light illuminate as brightly as it does when connecting directly to the ground terminal of the Battery?
Yes
- Replace the Turbocharger Boost Actuator in accordance with the service information.
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
No
- Repair the (Z909) Ground circuit for an open/high resistance.
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
- Using a test light connected to Battery Voltage, check the (Z909) Ground circuit at the Turbo Boost Actuator harness connector.