Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT DSC FUSE CONDITION Is DSC fuse (ABS/DSC S 30A) normal?	Yes	Go to the next step.
1		No	Replace the fuse, then go to Step 3.
2	INSPECT VALVE RELAY POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT Switch the ignition to off. Disconnect DSC HU/CM connector. Switch the ignition to ON (engine off). Measure voltage between DSC HU/CM terminal AG (harness-side) and ground. Is voltage B+ ?	Yes	Go to the next step.
2		No	Refer to the wiring diagram and verify whether or not there is a common connector between battery positive terminal and DSC HU/CM terminal AG. 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 next step.
3	VERIFY DTC TROUBLESHOOTING COMPLETED Using the M-MDS, clear the DTC from the DSC HU/CM. (See CLEARING DTC [DYNAMIC STABILITY CONTROL (DSC)] .) 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 .)
3		No	Go to the next step.
4	VERIFY NO DTC IS PRESENT Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)] .)
4	VERIFY NO DTC IS PRESENT Are any DTCs present?	No	DTC troubleshooting completed.