ABS (DIAGNOSTICS) > ABS Warning Light / Brake Warning Light Illumination Pattern

ABS WARNING LIGHT DOES NOT COME ON

DETECTING CONDITION:

• Defective combination meter

• Defective harness

TROUBLE SYMPTOM:

When the ignition switch is turned to ON (engine OFF), ABS warning light does not come on.

WIRING DIAGRAM:

STEPCHECKYESNO

1.CHECK ILLUMINATION OF OTHER LIGHTS.

Turn the ignition switch to ON. (engine OFF)

Do other warning lights illuminate?

Check the combination meter.

2.READ DTC.

Read the DTC.

Is DTC displayed?

Perform the diagnosis according to DTC.

3.CHECK GROUND SHORT OF HARNESS.

1) Turn the ignition to OFF.

2) Disconnect the connector (B301) (LHD model), (F49) (RHD model) from the ABSCM&H/U.

3) Disconnect the connector (i11) from combination meter.

4) Measure the resistance between ABSCM connector and chassis ground.

Connector & terminal

LHD model

(B301) No. 22 — Chassis ground:

RHD model

(F49) No. 22 — Chassis ground:

Is the resistance more than 1 MΩ?

Repair harness and connector between ABSCM&H/U and combination meter.

4.CHECK ABSCM.

1) Connect the connector (B301) (LHD model), (F49) (RHD model) to the ABSCM&H/U.

2) Turn the ignition to ON.

3) Immediately after turning ignition switch to ON (within approximately 2 seconds), measure the resistance of harness between the combination meter connector and chassis ground.

Connector & terminal

(i11) No. 6 — Chassis ground:

Is the resistance more than 1 MΩ?

Check the combination meter.

Replace the ABSCM only.