Inspection Procedure
- CHECK TIRE CONDITION
- Check the size and condition of all 4 tires (See INSPECTION ).
HINT:
This DTC is output when tire deformation or a difference in tire size is detected.
OK: The diameter and air pressure of all 4 tires are the same.
NG: REPLACE TIRES SO THAT ALL 4 TIRES ARE THE SAME SIZE
A: Go To Next Step
- READ VALUE OF INTELLIGENT TESTER
- Connect the intelligent tester to the DLC3.
- Start the engine.
- Select the "DATA LIST" on the intelligent tester (See DATA LIST / ACTIVE TEST ).
- Check that the speed values detected at all four wheels displayed on the intelligent tester are the same when driving the vehicle.
DATA LIST: 4WD
DATA LIST REFERENCE (4WD)Item Measurement Item / Range (Display) Normal Condition FR WHEEL SPD Wheel speed sensor (FR) reading / min.: 0 mph (0 km/h), max.: 202 mph (326.4 km/h) Actual wheel speed FL WHEEL SPD Wheel speed sensor (FL) reading / min.: 0 mph (0 km/h), max.: 202 mph (326.4 km/h) Actual wheel speed RR WHEEL SPD Wheel speed sensor (RR) reading / min.: 0 mph (0 km/h), max.: 202 mph (326.4 km/h) Actual wheel speed RL WHEEL SPD Wheel speed sensor (RL) reading / min.: 0 mph (0 km/h), max.: 202 mph (326.4 km/h) Actual wheel speed OK: The speed of all four wheels displayed on the intelligent tester should match.
NG: CHECK SPEED SIGNAL CIRCUIT
OK: Go To Next Step
- RECONFIRM DTC
- Clear the DTC (See DTC CHECK / CLEAR ).
- Turn the engine switch off.
- Start the engine.
- Drive the vehicle at the speed of 12 mph (20 km/h) or more and check if the same DTC is output.
Result
DTC OUTPUT RESULTResult Proceed to DTC is output A DTC is not output B B: CHECK INTERMITTENT PROBLEMS
A: REPLACE 4WD CONTROL ECU