(a) Check that the part number of the installed ECM is correct.
OK:
ECM installed in the vehicle has the correct part number.
NG -- REPLACE ECM (for 2GR-FSE) See: Powertrain Management/Computers and Control Systems/Engine Control
Module/Service and Repair/Removal
OK -- Continue to next step.
2. CLEAR AND STORE SYSTEM INFORMATION
(a) Clear the system information See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and
Inspection/Programming and Relearning.
(b) Store the system information See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and
Inspection/Programming and Relearning.
NEXT -- Continue to next step.
3. RECONFIRM DTC
(a) Clear the DTCs See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and Inspection/Reading and
Clearing Diagnostic Trouble Codes.
(b) Check if the same DTC is recorded See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes.
Result:
B -- REPLACE BRAKE ACTUATOR ASSEMBLY See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Hydraulic Control Assembly - Antilock Brakes/Service and Repair/Removal
A -- CHECK FOR INTERMITTENT PROBLEMS See: Accessories and Optional Equipment/Antitheft and Alarm
Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed With Troubleshooting
Up to 08/2009
BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C1210,C1336: Zero Point
Calibration of Yaw Rate Sensor Undone
DESCRIPTION
The skid control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system.
The yaw rate sensor has a built-in acceleration sensor and detects the vehicle's condition using 2 circuits (GL1, GL2). If there is a malfunction in the
bus lines between the yaw rate and acceleration sensor and the CAN communication system, DTCs U0123 (Lost Communication with Yaw Rate
Sensor Module) and U0124 (Lost Communication with Lateral Acceleration Sensor Module) are output.
The DTCs are also output when the calibration has not been completed.
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