DTC U0401 [MZR 2.0 DISI i-stop]
id0602008088i1
|
DTC
|
U0401
|
Signal error from PCM
|
|
|
DETECTION CONDITION
|
• Error detected in signal from PCM via CAN communication
|
||
|
POSSIBLE CAUSE
|
• PCM malfunction
|
||
Diagnostic procedure
|
STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
INSPECT FOR PCM MALFUNCTION
• Using the M-MDS, perform the DTC inspection for the PCM.
• Are any DTCs detected?
|
Yes
|
Go to applicable DTC inspection.
DTC troubleshooting completed, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
2
|
VERIFY THAT SAME DTC IS NOT PRESENT
• Clear the DTC from the memory.
• Is the same DTC present?
|
Yes
|
Repeat the inspection from Step 1.
If the malfunction recurs, replace the PCM.
|
|
No
|
Go to the next step.
|
||
|
3
|
VERIFY THAT NO OTHER DTCs ARE PRESENT
• Are any other DTCs output?
|
Yes
|
Go to the applicable DTC inspection.
|
|
No
|
DTC troubleshooting completed.
|
||