J1850 Loopback Test / Internal Hardware Failure

J1850 LOOPBACK TEST / INTERNAL HARDWARE FAILURE

For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
The Cluster performs internal circuit and software tests at every power up.

- Set Condition:
This DTC will set if the Cluster detects an internal failure.





Diagnostic Test

1. CLUSTER
With the scan tool, erase DTCs.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
With the scan tool, read DTCs.
When this code is set, the Cluster must be replaced.

View Repair

- Replace the Cluster.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test