NO.1 ABS WARNING LIGHT, BRAKE SYSTEM WARNING LIGHT DO NOT ILLUMINATE WITH SWITCH THE IGNITION TO ON [ABS]

1	ABS warning light, BRAKE system warning light do not illuminate with switch the ignition to on.
[TROUBLESHOOTING HINTS] • Malfunction in instrument cluster • ABS HU/CM internal malfunction

STEP	INSPECTION	ACTION
1	VERIFY WHERE MALFUNCTION IS IN WARNING LIGHTS AND INDICATOR LIGHTS’ COMMON POWER SUPPLY, OR IN OTHER WARNING LIGHTS AND INDICATOR LIGHTS • Connect the M-MDS to DLC-2. • Turn on all warning lights and indicator lights using the instrument cluster PID WL+IL of active command modes. (See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].) • Do other warning and indicator lights illuminate?	Yes	Go to Step 5.
No	If communication error message is displayed on M-MDS screen, go to the next step. If communication error message is not displayed, replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
2	INSPECT INSTRUMENT CLUSTER POWER SUPPLY FUSE • Is instrument cluster ignition power supply fuse normal?	Yes	Go to the next step.
No	Check for a short to ground on blown fuse’s circuit. Repair or replace as necessary. Install appropriate amperage fuse.
^*3	VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN INSTRUMENT CLUSTER POWER SUPPLY AND INSTRUMENT CLUSTER FOR CONTINUITY) OR ELSEWHERE • Switch the ignition to ON. • Measure voltage at instrument cluster connector (24-pin) terminal 2V. • Is voltage approx. 12 V?	Yes	Go to the next step.
No	Inspect for open circuit between instrument cluster and ignition. Repair or replace as necessary.
^*4	VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN INSTRUMENT CLUSTER AND GND FOR CONTINUITY) OR INSTRUMENT CLUSTER • Switch the ignition to off. • Disconnect the instrument cluster. • Verify continuity between the instrument cluster harness-side connector terminal 2B and GND. • Is there continuity?	Yes	Replace the instrument cluster. (open circuit in instrument cluster) (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
No	Repair or replace malfunctioning part for open circuit and poor contact in GND point.
5	CONFIRM INSTRUMENT CLUSTER DTC • Retrieve the instrument cluster DTC using the M-MDS. • Is there any DTC retrieved?	Yes	Perform the applicable DTC troubleshooting procedure. (See DTC TABLE [INSTRUMENT CLUSTER].)
No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

STEP

INSPECTION

ACTION

VERIFY WHERE MALFUNCTION IS IN WARNING LIGHTS AND INDICATOR LIGHTS’ COMMON POWER SUPPLY, OR IN OTHER WARNING LIGHTS AND INDICATOR LIGHTS

• Connect the M-MDS to DLC-2.

• Turn on all warning lights and indicator lights using the instrument cluster PID WL+IL of active command modes.

(See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].)

• Do other warning and indicator lights illuminate?

Yes

Go to Step 5.

If communication error message is displayed on M-MDS screen, go to the next step.

If communication error message is not displayed, replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

INSPECT INSTRUMENT CLUSTER POWER SUPPLY FUSE

• Is instrument cluster ignition power supply fuse normal?

Yes

Go to the next step.

Check for a short to ground on blown fuse’s circuit.

Repair or replace as necessary.

Install appropriate amperage fuse.

^*3

VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN INSTRUMENT CLUSTER POWER SUPPLY AND INSTRUMENT CLUSTER FOR CONTINUITY) OR ELSEWHERE

• Switch the ignition to ON.

• Measure voltage at instrument cluster connector (24-pin) terminal 2V.

• Is voltage approx. 12 V?

Yes

Go to the next step.

Inspect for open circuit between instrument cluster and ignition.

Repair or replace as necessary.

^*4

VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN INSTRUMENT CLUSTER AND GND FOR CONTINUITY) OR INSTRUMENT CLUSTER

• Switch the ignition to off.

• Disconnect the instrument cluster.

• Verify continuity between the instrument cluster harness-side connector terminal 2B and GND.

• Is there continuity?

Yes

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

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

Repair or replace malfunctioning part for open circuit and poor contact in GND point.

CONFIRM INSTRUMENT CLUSTER DTC

• Retrieve the instrument cluster DTC using the M-MDS.

• Is there any DTC retrieved?

Yes

Perform the applicable DTC troubleshooting procedure.

(See DTC TABLE [INSTRUMENT CLUSTER].)

Replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

• 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, check to make sure connectors, terminals and wiring harness are connected correctly and undamaged.