NO.1 ABS WARNING LIGHT ILLUMINATE WHEN THE IGNITION SWITCH OR ENGINE SWITCH IS TURNED TO THE ON POSITION

id040300807000

1	ABS warning light illuminate when the ignition switch or engine switch is turned to the ON position.
[TROUBLESHOOTING HINTS] •  Instrument cluster or ABS HU/CM malfunction

STEP	INSPECTION		ACTION
1	INSPECT FOR DTCs IN ABS HU/CM •  Have DTCs been stored in memory?	Yes	Perform the applicable DTC inspection. (See ON-BOARD DIAGNOSIS.)
		No	Inspect the instrument cluster. If the instrument cluster is normal, inspect CAN communication. If instrument cluster has a malfunction, go to the next step.
2	VERIFY WHETHER MALFUNCTION IS IN WARNING LIGHTS AND INDICATOR LIGHT’S COMMON POWER SUPPLY, OR IN OTHER WARNING LIGHTS AND INDICATOR LIGHTS •  Do other warning and indicator lights illuminate when the ignition switch or engine switch is turned to the ON position?	Yes	Replace the instrument cluster. (open circuit in instrument cluster) (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
		No	Go to the next step.
3	INSPECT INSTRUMENT CLUSTER POWER SUPPLY FUSE •  Is the instrument cluster ignition power supply fuse normal?	Yes	Go to the next step.
		No	Inspect for a short to ground on circuit of blown fuse. Repair or replace if necessary. Install appropriate amperage fuse.
*4	VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN INSTRUMENT CLUSTER POWER SUPPLY AND INSTRUMENT CLUSTER FOR CONTINUITY) OR INSTRUMENT CLUSTER •  Turn the ignition switch or engine switch to the ON position. •  Measure voltage at instrument cluster connector terminal 2A. •  Is the voltage approx. 12 V?	Yes	Replace the instrument cluster (open circuit in instrument cluster). (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
		No	Inspect for open circuit in wiring harness between the instrument cluster and ground. Repair or replace if necessary. Replace the ABS HU/CM. (See ABS HU/CM REMOVAL/INSTALLATION.)