Diagnostic Test
- CHECK FOR AN ACTIVE DTC
- Start the engine and allow it to idle.
- With the scan tool, read DTCs and record on the repair order.
Is the DTC active or pending?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
- CHECK FOR OTHER DTCS
- Refer to the recorded DTCs.
Are there any Starter Relay circuit DTCs present in the PCM or BCM?
Yes
- Perform the applicable diagnostic procedure(s). Refer to appropriate diagnostic information .
No
- Go To 3
- Refer to the recorded DTCs.
- CHECK THE (K90) STARTER RELAY 1 CONTROL CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT
- Turn the ignition off.
- Disconnect the BCM C1 harness connector.
- Remove the Starter Relay from the Power Distribution Center (PDC).
- Check for continuity between the (K90) Starter Relay 1 Control circuit and all other circuits at the BCM C1 harness connector.
Is there continuity between the (K90) Starter Relay 1 Control circuit and any other circuit?
Yes
- Repair the (K90) Starter Relay 1 Control circuit for a short to the circuit that showed continuity.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Replace the Starter Relay 1.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .