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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 241 (Power Steering) >> Electronic Power Steering System >> DTC U0100 Lost Communication with ECM / PCM "A"; DTC U0129 Lost Communication with Brake System Control Module >> Description

DTC U0100 Lost Communication with ECM / PCM "A"; DTC U0129 Lost Communication with Brake System Control Module: Description

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

The power steering ECU receives signals from the ECM and the skid control ECU (ABS ECU) via the CAN communication system.

DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE

DTC No. DTC Detection Condition Trouble Area
U0100 ECM communication error
  • CAN communication system
  • ECM
U0129 Skid control ECU (ABS ECU) communication error
  • CAN communication system
  • Skid control ECU (ABS ECU)

HINT:

When two or more DTCs starting with [U] are output simultaneously, inspect the connectors and wire harness of each ECU.

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