Vehicle Stability Control System

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: U0073, U0100, U0101, U0126; Control Module Communication Bus "A" Off; 2013 MY FR-S [03/2012 -]
U0073 - Control Module Communication Bus "A" Off
U0100 - Lost Communication with ECM / PCM "A"
U0101 - Lost Communication with TCM
U0126 - Lost Communication with Steering Angle Sensor Module

DESCRIPTION

The skid control ECU (brake actuator assembly) receives signals from the ECM, steering sensor and TCM via the CAN communication system.





INSPECTION PROCEDURE

PROCEDURE

1. RECONFIRM DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Turn the ignition switch off.

(c) Start the engine.

(d) Drive the vehicle at a speed of 15 km/h (9 mph) or more and turn the steering wheel to the right and left.

(e) Check that no CAN communication system DTC is output Diagnosis System.

(f) If VSC system DTCs are output, record them Reading and Clearing Diagnostic Trouble Codes.

Result:





HINT
The CAN communication system must be normal when performing troubleshooting for sensor DTCs (for VSC system).

B -- REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Vehicle Stability Control System

C -- INSPECT CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting

A -- CHECK FOR INTERMITTENT PROBLEMS