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. Glow plug relay controls current flow to glow plugs. Glow plug relay "on" time is controlled by Powertrain Control Module (PCM) and is a function of engine oil temperature, barometric pressure and battery voltage. Glow plug "on" time varies between 10-120 seconds. This test is intended to diagnose:
- Glow Plug Relay
- Harness Circuits (GP/RELAY Coil)
- Powertrain Control Module (PCM)