FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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U0423






U0423-IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN





For a complete wiring diagram, refer to the Wiring Information. Electrical Diagrams

- When Monitored:
Continuously with the ignition in the Run or Accessory position.

- Set Condition:
When the Electronic Booster Gauge (EBG) detects an incorrect message from the Cluster/Cabin Compartment Node (CCN).





1. CHECK FOR TIPM CAN BUS DTCS
1. Turn the ignition on.
2. With the scan tool, read TIPM DTCs.

Are there any TIPM CAN BUS DTCs present?

Yes

- Perform the appropriate diagnostic procedure.Testing and Inspection

No

- Go To 2

2. CHECK FOR CLUSTER/CCN DTCS
1. With the scan tool, read Cluster/CCN DTCs.

Are there any Cluster/CCN DTCs present?

Yes

- Perform the appropriate diagnostic procedure.Testing and Inspection

No

- Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. If no problems are found, replace the EBG.
- Perform the BODY VERIFICATION TEST. Body Verification Test.