HINT
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next
step See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and Inspection/Symptom Related
Diagnostic Procedures/Problem Symptoms Table.
NG -- INSTALL YAW RATE AND ACCELERATION SENSOR CORRECTLY See: Brakes and Traction Control/Antilock
Brakes / Traction Control Systems/Acceleration/Deceleration Sensor/Service and Repair/Installation
OK -- REPLACE YAW RATE AND ACCELERATION SENSOR See: Brakes and Traction Control/Antilock Brakes / Traction
Control Systems/Acceleration/Deceleration Sensor/Service and Repair/Removal
Up to 08/2009
BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C1240: Yaw Rate Sensor
Discrimination
C1240 - Yaw Rate Sensor Discrimination
DESCRIPTION
INSPECTION PROCEDURE
NOTICE:
When replacing the brake actuator assembly or yaw rate and acceleration sensor, perform zero point calibration and store system
information See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and
Inspection/Programming and Relearning.
PROCEDURE
1. CHECK PART NUMBER (YAW RATE AND ACCELERATION SENSOR)
(a) Check that the part number of the installed yaw rate and acceleration sensor is correct.
OK:
Yaw rate and acceleration sensor installed in the vehicle has the correct part number.
NG -- REPLACE YAW RATE AND ACCELERATION SENSOR See: Brakes and Traction Control/Antilock Brakes / Traction
Control Systems/Acceleration/Deceleration Sensor/Service and Repair/Removal
OK -- Continue to next step.
2. 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
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