This condition indicates that the battery circuit to the ECM has a battery condition that is intermittent or a battery condition that is low while the engine is running. If battery voltage disappears without returning, the ECM will not log this diagnostic code and the engine will shut down.
System Response:
Electronic System Response The ECM may stop injecting fuel. This may be dependent on the length of time of the occurrence of the fault.
Engine Response The engine may experience changes in the engine rpm, and intermittent engine shutdowns or complete engine shutdowns while the conditions that cause this diagnostic code are present.
Service Tool Display or Lamps The Check Engine Lamp and the Warning Lamp may come on as if the ignition key switch was just turned on and the engine started.
Test Step 1. Perform the following diagnostic procedure: Ignition Key Switch Circuit and Battery Supply Circuit - Test
Results:
- OK - STOP