DESCRIPTION
The 4WD ECU assembly determines that the vehicle is turning based on the signals sent from the steering sensor.
The steering sensor signal is sent to the 4WD ECU assembly via CAN communication.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
C1297 | Steering Angle Sensor | When the IG1 terminal voltage is 9.5 V or more, a steering sensor malfunction signal is received. |
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CAUTION / NOTICE / HINT
NOTICE:
When the 4WD ECU assembly is replaced with a known good one from another vehicle, it is necessary to perform calibration.
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HINT:
Check the condition of each related circuit connector before troubleshooting.
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PROCEDURE
1. | CHECK FOR DTC |
(a) Clear the DTCs.
Chassis > Brake/EPB > Clear DTCs(b) Turn the engine switch off.
(c) Turn the engine switch on (IG) and check that no CAN communication system DTCs are output.
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(d) Start the engine.
(e) Drive the vehicle at a speed of 35 km/h (24 mph), turn the steering wheel to the right and left and check that no Vehicle Stability Control system (steering angle sensor) DTCs are output.
Chassis > Brake/EPB > Trouble Codes Result | Proceed to |
---|---|
CAN communication system DTCs and vehicle stability control system DTC are not output | A |
CAN communication DTCs are output | B |
Vehicle stability control system (steering angle sensor) DTCs are output | C |
HINT:
If CAN communication DTCs are output, perform troubleshooting for the CAN communication system first.
B | GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
C | REPAIR CIRCUIT INDICATED BY OUTPUT CODE (VEHICLE STABILITY CONTROL SYSTEM) |
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2. | READ VALUE USING TECHSTREAM (STEERING ANGLE VALUE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / Four Wheel Drive / Data List.
(e) Read the value displayed on the Techstream.
Chassis > Four Wheel Drive > Data List Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
---|---|---|---|---|
Steering Angle Value | Steering angle value | Min.: -3276.8° Max.: 3276.7° | During steering operation: Changes in accordance with steering wheel rotation | Left turn: Increases Right turn: Decreases |
Tester Display |
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Steering Angle Value |
OK:
The steering angle sensor value changes in accordance with the steering wheel movement.
OK | REPLACE 4WD ECU ASSEMBLY |
NG | REPLACE STEERING SENSOR |
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