P0381

P0381-WAIT TO START LAMP INOPERATIVE

For a complete wiring diagram Refer to Diagrams/Electrical.


- When Monitored:
Ignition on.

- Set Condition:
The cluster sends a signal to the ECM that it has detected a failed wait to start lamp.







Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Initial Inspection and Diagnostic Overview


Diagnostic Test


1. WAIT-TO-START LAMP DOES NOT COME ON
Turn the ignition off.
While watching the wait-to-start lamp, turn the ignition key on.
Did the wait-to-start lamp light?

Yes


- Go To2


No


- Go To3



2. WAIT-TO-START LAMP STAYS ON ALL THE TIME
Turn the ignition off.
While watching the wait-to-start lamp, turn the ignition key on.
Does the wait-to-start lamp stay on all the time?

Yes


- Go To 3


No


- Wait-to-start Lamp operating normally. Test passed.
- Perform POWERTRAIN VERIFICATION TEST VER - 6.7L. Powertrain Verification Test



3. FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN




Turn the ignition off.
Remove the cluster.

NOTE: Check connectors - Clean/repair as necessary.

Turn the ignition on.
Using a 12-Volt test Light, check the Fused Ignition Switch Run/Start circuit while the ignition is in the run/start position.
Is the light illuminated and bright?

Yes


- Go To 4


No


- Repair the open fused Ignition Switch Output circuit.
- Perform POWERTRAIN VERIFICATION TEST VER - 6.7L. Powertrain Verification Test



4. WAIT-TO-START LIGHT BULB
Remove and inspect the Wait-to-Start Bulb.
Is the Bulb Ok?

Yes


- Test complete.


No


- Replace the Wait-to-Start Bulb.
- Perform POWERTRAIN VERIFICATION TEST VER - 6.7L. Powertrain Verification Test