DTC U2202 [MULTIPLEX COMMUNICATION SYSTEM]


id0902e6830300

DTC

U2202

DSC HU/CM

Communication error to PCM

DETECTION CONDITION
Warning
•  Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only detection conditions may cause injury due to operating error, or damage the system. When performing an inspection, always follow the inspection procedure.
•  CAN system related harness malfunction
•  Related module communication error
POSSIBLE CAUSE
•  Open or short circuit in wiring harness
•  Malfunction of connectors between PCM and DSC HU/CM
•  DSC HU/CM malfunction
•  PCM malfunction
•  Incorrect vehicle data (suspension and brake specs.) input during PCM configuration

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT DTC
•  Is DTC U2202 displayed?
Yes
Perform the PCM configuration.
Caution
•  When inputting the configuration data by hand, verify that it matches the vehicle specification.
Clear the DTC, then go to the next step.
No
Troubleshooting completed.
2
INSPECT DTC
•  Is DTC U2202 displayed?
Yes
Go to the next step.
No
Troubleshooting completed.
3
INSPECT HARNESS MALFUNCTION
Determine malfunctioning part in can system.
Is there any malfunction?
Yes
Replace the wiring harness.
Clear the DTC.
No
Replace the DSC HU/CM.
Clear the DTC, then go to the next step.
4
VERIFY TROUBLESHOOTING COMPLETED
•  Is DTC U2202 displayed?
Yes
Replace the PCM.
Clear the DTC.
No
Troubleshooting completed.