NO.5 ABS WARNING LIGHT STAYS ON MORE THAN 4 SECONDS WITH IGNITION SWITCH ON

5	ABS warning light stays on more than 4 seconds with ignition switch on.
[TROUBLESHOOTING HINTS] • ABS CM detects ABS system malfunction.


STEP	INSPECTION		ACTION
1	INSPECT WIRING HARNESS BETWEEN ABS HU/CM AND DLC-2 FOR CONTINUITY AND SHORTS • Perform DTC inspection. • Is error message displayed regarding communication between ABS HU/CM and WDS or equivalent?	Yes	If the communication error message is displayed even after inspecting according to procedures displayed in the WDS or equivalent, go to Step 4.
1		No	Go to next step.
2	INSPECT FOR DTCs IN ABS HU/CM • Have DTCs been recorded in memory?	Yes	Perform inspection using appropriate DTC.
2		No	Inspect instrument cluster If instrument cluster is OK, then go to next step. If instrument cluster malfunction, repair instrument cluster, then go to next step.
3	INSPECT WIRING HARNESS BETWEEN ABS HU/CM AND DLC-2 FOR CONTINUITY • Disconnect ABS HU/CM connector. • Is there continuity between connector terminal H, L and DLC-2?	Yes	Go to next step.
3		No	Repair wiring harness between ABS HU/CM and DLC-2.
^*4	INSPECT WIRING HARNESS BETWEEN ABS HU/CM AND DLC-2 FOR SHORT TO B+ • Is voltage approx. 12V at connector terminal H, L?	Yes	Repair wiring harness between ABS HU/CM and DLC-2.
^*4		No	Go to next step.
5	INSPECT WIRING HARNESS BETWEEN ABS HU/CM AND DLC-2 FOR SHORT TO GROUND Is there continuity between connector terminal H, L and ground?	Yes	Repair wiring harness between ABS HU/CM and DLC-2.
5		No	Replace ABS CM (communication circuit malfunction is ABS CM).

• When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while doing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, inspect to make sure connectors, terminals and wiring harness are connected correctly and undamaged.