Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT FUSE CONDITION Is the fuse (ABS/DSCM 50A) normal?	Yes	Go to the next step.
1	INSPECT FUSE CONDITION Is the fuse (ABS/DSCM 50A) normal?	No	Replace the fuse, then go to Step 6.
2	VERIFY PUMP MOTOR OPERATION Using the M-MDS, perform the simulation inspection for pump motor. (See SIMULATION INSPECTION [DYNAMIC STABILITY CONTROL (DSC)] .) Does the pump motor operate?	Yes	Go to Step 6.
2		No	Go to the next step.
3	INSPECT MOTOR RELAY POWER SUPPLY FOR OPEN CIRCUIT Switch the ignition to off. Disconnect the DSC HU/CM connector. Inspect for continuity between DSC HU/CM terminal AH and the positive battery terminal. Is there continuity?	Yes	Go to the next step.
3		No	Refer to the wiring diagram and verify whether or not there is a common connector between DSC HU/CM terminal AH and the positive battery terminal. If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has an open circuit. Go to Step 6.
4	INSPECT MOTOR RELAY POWER SUPPLY FOR SHORT CIRCUIT Inspect for continuity between DSC HU/CM terminal AH and body ground. Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between DSC HU/CM terminal AH and the positive battery terminal. If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has a short to ground. Go to Step 6.
4		No	Go to the next step.
5	INSPECT PUMP MOTOR GROUND FOR OPEN CIRCUIT Inspect for continuity between DSC HU/CM terminal B and body ground. Is there continuity?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness, then go to the next step.
6	VERIFY DTC TROUBLESHOOTING COMPLETED Using the M-MDS, clear the DTC from the DSC HU/CM. (See CLEARING DTC [DYNAMIC STABILITY CONTROL (DSC)] .) Start the engine and drive the vehicle at 6 km/h {4 mph} or more. Gradually slow down and stop vehicle. Using the M-MDS, perform the DSC HU/CM DTC inspection. (See DTC INSPECTION [DYNAMIC STABILITY CONTROL (DSC)] .) Is the same DTC present?	Yes	Repeat the inspection from Step1. If the malfunction recurs, replace the DSC HU/CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION .)
6		No	Go to the next step.
7	VERIFY NO DTC IS PRESENT Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)] .)
7	VERIFY NO DTC IS PRESENT Are any DTCs present?	No	DTC troubleshooting completed.