- The 4WD control ECU determines that the vehicle is turning based on the signals sent from the steering angle sensor.
- The steering angle sensor signal is sent to the 4WD control ECU via the CAN communication system.
- The 4WD control ECU detects the amount of steering wheel movement and performs "slip control at vehicle start up", according to the
amount of movement, and "slip control" to secure high turning performance.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT
Check the condition of each related circuit connector before troubleshooting See: Accessories and Optional Equipment/Antitheft
and Alarm Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/Electronic Circuit Inspection
Procedure.
PROCEDURE
1. CHECK FOR DTC
(a) Clear the DTC See: Transmission and Drivetrain/Transfer Case/Testing and Inspection/Reading and Clearing Diagnostic Trouble
Codes.
(b) Turn the engine switch off.
(c) Turn the engine switch on (IG) again and check that no CAN communication system DTC(s) is output See: Powertrain
Management/Computers and Control Systems/Information Bus/Testing and Inspection/Initial Inspection and Diagnostic
Overview/CAN Communication System/Diagnosis System.
(d) Start the engine.
(e) Drive the vehicle and turn the steering wheel to the right and left at a speed of 35 km/h (24 mph) and check that no brake control
system (steering angle sensor) DTC (C1432,C1433 or C1434) is output See: Diagnostic Trouble Code Descriptions/Vehicle Stability
Control System.
Result:
HINT
When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before
repairing each corresponding sensor.
C -- REPAIR OR REPLACE CIRCUIT INDICATOR OUTPUT CODE (STEERING ANGLE SENSOR CIRCUIT) See:
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