NOTE: When replacing the skid control ECU, perform zero point calibration and store system information (See CALIBRATION ).

CHECK ABS CONTROL SYSTEM

Clear the DTCs (See DTC CHECK / CLEAR ).
Start the engine.
Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more.

Check if the same DTC is recorded (See DTC CHECK / CLEAR ).

Result

RESULT REFERENCE

Result	Proceed to
DTC (ABS control system DTC) is not output	A
DTC (ABS control system DTC) is output	B

B: REPAIR CIRCUIT INDICATED BY OUTPUT DTC (See DIAGNOSTIC TROUBLE CODE CHART )

A: Go to next step

RECONFIRM DTC

Turn the engine switch off.
Clear the DTCs (See DTC CHECK / CLEAR ).
Start the engine
Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more.

Check if the same DTC is recorded (See DTC CHECK / CLEAR )

Result

RESULT REFERENCE

Result	Proceed to
DTC (43) is not output	A
DTC (43) is output	B

B: REPLACE SKID CONTROL ECU (See REMOVAL )

A: CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (See DIAGNOSIS SYSTEM )

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Inspection Procedure