NO.1 NEITHER ABS WARNING LIGHT NOR BRAKE SYSTEM WARNING LIGHT ILLUMINATE WHEN THE IGNITION SWITCH IS TURNED TO THE ON POSITION

#
NO.1 NEITHER ABS WARNING LIGHT NOR BRAKE SYSTEM WARNING LIGHT ILLUMINATE WHEN THE IGNITION SWITCH IS TURNED TO THE ON POSITION

B3E040367650W05

1 | Neither ABS warning light nor BRAKE system warning light illuminate when the ignition switch is turned to the ON position.
[TROUBLESHOOTING HINTS] • Instrument cluster or ABS HU/CM malfunction • Improper configuration (instrument cluster)

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT FOR DTCs IN ABS HU/CM • Have DTCs been stored in memory? | Yes | Perform the applicable DTC inspection. (See DTC Table.)
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 is turned to the ON position? | Yes | Replace the instrument cluster. (Open circuit in instrument cluster)
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 to the ON position.
• Measure voltage at instrument cluster connector terminal 1G.
• Is the voltage approx. 12 V?

Yes

Replace the instrument cluster (open circuit in instrument cluster).

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.)

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