Code Description
NOTE:
After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST procedures to ensure all electronic engine control systems are working properly and DTCs are no longer present.
Perform this test when directed by QUICK TEST. This test is intended to diagnose:
- Wiring Harness Circuit (KAPWR)
- Powertrain Control Module (PCM)
NOTE:
Installing a breakout box or disconnecting battery terminals will interrupt Keep Alive Power (KAPWR) to PCM. DTC P0603 may be stored in continuous memory.