W/Harness Inspection
Engine Control
P0605 Internal Control Module Read Only Memory(ROM) Error - Inspection/Repair:_:W/Harness Inspection
Back Up Voltage Inspection
1. Ignition "OFF".
2. Disconnect PCM connector.
3. Ignition "ON".
4. Measure voltage between terminal 6 of the PCM harness connector and chassis ground.
Specification :Remain stable at battery voltage
5. Are circuits remaining stable at battery voltage?