P0383-GLOW PLUG CONTROL MODULE CONTROL CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W
Possible Causes
|
INTERMITTENT DTC
|
(K202) GLOW PLUG MODULE CONTROL CIRCUIT SHORTED TO GROUND
|
(K202) GLOW PLUG MODULE CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
|
GLOW PLUG MODULE
|
ENGINE CONTROL MODULE (ECM)
|
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
Diagnostic Test
1.
DTC IS ACTIVE
Ignition on, engine not running.
With the scan tool, clear DTCs in the Engine Control Module (ECM).
With the scan tool, actuate the Glow Plugs.
Monitor the scan tool for at least two minutes.
Cycle the ignition key off and on several times, leaving the ignition on for at least 10 seconds at a time.
Start the engine.
Allow the engine to reach normal operating temperature.
Test drive the vehicle.
With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
No
2.
(K202) GLOW PLUG MODULE CONTROL CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Disconnect the Glow Plug Module harness connector.
Disconnect the Engine Control Module (ECM) harness connectors.
Measure the resistance between ground and the (K202) Glow Plug Module Control circuit in the Glow Plug Module harness connector.
Is the resistance below 1000 ohms?
Yes
No
3.
(K202) GLOW PLUG MODULE CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
Measure the resistance of the (K202) Glow Plug Module Control circuit between the Glow Plug Module harness connector and the Engine Control Module (ECM) harness connector.
Is the resistance below 10.0 ohms?
Yes
No