ENTRY AND START SYSTEM (for Start Function), Diagnostic DTC:U0100

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"

DESCRIPTION

The power management control ECU receives shift position information from 2 sources. It receives a shift position P signal from the shift lock control unit assembly via a direct line, and shift position information from the ECM via CAN. If the information from these 2 sources is inconsistent, this DTC will be stored.

DTC No. DTC Detection Condition Trouble Area
U0100 Shift position information from ECM (via CAN) and shift lock control unit assembly (direct line) is inconsistent

  • CAN communication system

  • Power management control ECU

  • ECM

  • Wire harness or connector

WIRING DIAGRAM

Refer to CAN Communication System Click here.

INSPECTION PROCEDURE

Note

When the power management control ECU is replaced with a new one and the cable from the negative (-) battery terminal is connected, the power source mode becomes the on (IG) mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.

Refer to CAN Communication System Click here.