Control Module Communication Bus OFF - Electric Parking Brake System

PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM: U0073/51, U0100/53, U0124/55, U0129/52, U0293/54: Control Module Communication Bus OFF
U0293/54 - Lost Communication with HV ECU

DESCRIPTION

The electric parking brake ECU uses CAN communication with the ECM, skid control ECU and hybrid vehicle control ECU.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC

(a) Turn the power switch OFF.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch ON (IG) and the Techstream on.

(d) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

(e) Turn the power switch OFF.

(f) Turn the power switch ON (IG) and check for DTC.

Result





B -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

A -- GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) How to Proceed With Troubleshooting