DTC U0422:00 [DSC HU/CM]
id040262888300
DTC
|
U0422:00
|
Signal error from body control module (BCM)
|
DETECTION CONDITION
|
• Error detected in signal from body control module (BCM) via CAN communication.
|
|
FAIL-SAFE FUNCTION
|
• Refer to “Fail-safe function table”. (See DTC TABLE [DSC HU/CM].)
|
|
POSSIBLE CAUSE
|
• Body control module (BCM) malfunction
|
|
SYSTEM WIRING DIAGRAM
|
—
|
Diagnostic Procedure
Step |
Inspection |
Action |
|
---|---|---|---|
1
|
VERIFY BODY CONTROL MODULE (BCM) DTC
• Using the M-MDS, perform the body control module (BCM) DTC inspection.
(See DTC INSPECTION [BCM].)
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC TABLE [BCM].)
DTC troubleshooting completed, then go to the next step.
|
No
|
Go to the next step.
|
||
2
|
VERIFY DTC TROUBLESHOOTING COMPLETED
• Using the M-MDS, clear the DTC from the DSC HU/CM.
(See CLEARING DTC [DSC HU/CM].)
• Using the M-MDS, perform the DSC HU/CM DTC inspection.
(See DTC INSPECTION [DSC HU/CM].)
• Is the same Pending DTC present?
|
Yes
|
Repeat the inspection from Step1.
If the malfunction recurs, replace the body control module (BCM), then go to the next step.
|
No
|
Go to the next step.
|
||
3
|
VERIFY NO DTC IS PRESENT
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC TABLE [DSC HU/CM].)
|
No
|
DTC troubleshooting completed.
|