Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- CHECK PCM FOR ACCELERATOR PEDAL POSITION (APP) SENSOR OR FIVE VOLT SUPPLY DTCS
- Turn the ignition on.
- With the scan tool, read DTCs and record on the repair order.
Are there any APP or 5 volt supply DTCs set in the PCM?
Yes
- Perform the APP or 5 volt supply DTC diagnostic procedure(s). Refer to DIAGNOSTIC CODE INDEX (5.7L) .
No
- Go To 2
- CHECK FOR AN ACTIVE DTC NOTE:
This DTC is set when the APP Sensor values are learned in-plant but do not reach the minimum or maximum voltage range.
Is the DTC active or pending?
Yes
- Go To 3
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
- CHECK FOR AN ACTIVE DTC AFTER PERFORMING THE ETC RELEARN FUNCTION
- With a scan tool perform the ETC RELEARN function.
- With the scan tool, erase DTCs.
- Start the engine.
- With the scan tool, read DTCs.
Is the DTC active or pending?
Yes
- Replace the APP Sensor in accordance with the Service Information. Refer to SENSOR, ACCELERATOR PEDAL POSITION, REMOVAL . After installation is complete, perform the ETC RELEARN function.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Test Complete.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .