Pinpoint Test AK : P1594 Or P1595
- AK1 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- Using a diagnostic scan tool, carry out the PCM self-test.
Are any PCM Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the PCM DTC Chart in the appropriate Electronic Engine Controls article. No GO to AK2 - AK2 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, carry out the BCM self-test.
Are any BCM Diagnostic Trouble Codes (DTCs) present?
Yes REFER to BCM DTC Chart . No Refer to BCM Guided Routine .