(a) Turn the engine switch off.
(b) Replace the rear speed sensor See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Wheel Speed
Sensor/Service and Repair/Rear Speed Sensor/Removal.
NOTICE:
Check the speed sensor signal after replacement See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Test Mode Procedure.
NEXT -- Continue to next step.
16. PERFORM TEST MODE (SIGNAL CHECK)
(a) Perform the sensor check in the Test Mode procedure See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Test Mode Procedure.
OK:
All Test Mode DTCs are cleared.
NG -- REPLACE REAR SPEED SENSOR ROTOR
OK -- END
17. REPLACE REAR SPEED SENSOR ROTOR
(a) Turn the engine switch off.
(b) Replace the rear speed senor and the rear axle hub and bearing assembly (rear speed sensor rotor) See: Brakes and Traction
Control/Antilock Brakes / Traction Control Systems/Wheel Speed Sensor/Service and Repair/Rear Speed Sensor/Removal.
HINT
The rear speed sensor rotor is incorporated into the rear axle hub and bearing assembly.
If the rear speed sensor rotor needs to be replaced, replace it together with the rear axle hub and bearing assembly.
NOTICE:
Check the speed sensor signal after replacement See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Test Mode Procedure.
NEXT -- Continue to next step.
18. PERFORM TEST MODE (SIGNAL CHECK)
(a) Perform the sensor check in the Test Mode procedure See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Test Mode Procedure.
OK:
All Test Mode DTCs are cleared.
NG -- REPLACE BRAKE ACTUATOR ASSEMBLY See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Hydraulic Control Assembly - Antilock Brakes/Service and Repair/Removal
OK -- END
From 08/2009
BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C1273,C1274,C1277,C1278:
Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)
DESCRIPTION
DTCs C1273 to C1278 will be cleared when the speed sensor sends a vehicle speed signal or when Test Mode ends. DTCs from C1273 to C1278 are
output only in Test Mode.
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