ABS W/Traction Control (Trac)
C1203 / 53 - ECM Communication Circuit MalfunctionCIRCUIT DESCRIPTION
DTC Detecting Condition:
This circuit is used to send the TRAC control information to the ECM (TRC+, TRC-) from the ABS & TRAC ECU, and engine control information to the ABS & TRAC ECU (EFI+, EFI-) from the ECM.
Wiring Diagram:
Step 1:
INSPECTION PROCEDURE