DTC U0100 (86)


BME040243000217

DTC

U0100 (86)

CAN communication system

DETECTION CONDITION

• Engine control system information through CAN is out of specification or invalid value.
• Received control prohibition signal from PCM through CAN.

POSSIBLE CAUSE

• Malfunction of PCM

Diagnostic procedure

STEP

INSPECTION

ACTION

1
CHECK FOR PCM FOR DTCs
• Turn ignition key to OFF.
• Connect WDS or equivalent to DLC-2
• Turn ignition key to ON (engine off).
• Is DTC for engine control system obtained?
Yes
Follow inspection procedures for engine control system.
No
Go to next step.
2
VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear DTC from memory.
• Start engine.
• Is same DTC present?
Yes
Replace ABS/TCS HU/CM, then go to next step.
No
Go to next step.
3
VERIFY AFTER REPAIR PROCEDURE
• Is there any other DTC present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.