DTC U0422:68 [INSTRUMENT CLUSTER]SM2445852
DTC U0422:68 [INSTRUMENT CLUSTER]

id0902e8950800

DESCRIPTION

Erratic signal from BCM
DETECTION CONDITION
• Correct data cannot be received from BCM.
POSSIBLE CAUSE
• BCM DTC is stored
• ROOM fuse malfunction
• BCM malfunction
• Instrument cluster malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
CONFIRM BCM DTC
• Perform the DTC inspection to confirm the BCM DTC using the M-MDS. (See DTC INSPECTION [BCM].)
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [BCM].)
No
Go to the next step.
2
CONFIRM INSTRUMENT CLUSTER DTC
• Clear the DTC from the instrument cluster using the M-MDS. (See CLEARING DTC [INSTRUMENT CLUSTER].)
• Turn the ignition switch to the ON position and wait for 25 s or more.
• Drive the vehicle at speed of 30 km/h {19 mph} or more.
• Perform the “DTC INSPECTION” to confirm the instrument cluster DTC using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER].)
• Is the same DTC present?
Yes
Inspect the ROOM fuse.
• If there is a malfunction:
― Replace the ROOM fuse.
• If not:
― Replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
Go to the next step.
No
Go to Step 4.
3
VERIFY TROUBLESHOOTING COMPLETED
• Clear the DTC from the instrument cluster using the M-MDS. (See CLEARING DTC [INSTRUMENT CLUSTER].)
• Turn the ignition switch to the ON position and wait for 25 s or more.
• Drive the vehicle at speed of 30 km/h {19 mph} or more.
• Perform the “DTC INSPECTION” to confirm the instrument cluster DTC using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER].)
• Is the same DTC present?
Yes
Replace the instrument cluster, then go to the next step.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
No
Go to the next step.
4
VERIFY THAT NO OTHER DTCs ARE PRESENT
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [INSTRUMENT CLUSTER].)
No
DTC troubleshooting completed.