Abs Warning Light Does Not Come On: Wiring Diagram

Fig 1: ABS Warning Light Does Not Come On - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

ABS WARNING LIGHT DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK ILLUMINATION OF OTHER LIGHTS. Turn the ignition switch to ON. (engine OFF)	Do other warning lights illuminate?	Go to step 2.	Check the combination meter.
2 READ DTC. Read the DTC. Refer to READ DIAGNOSTIC TROUBLE CODE (DTC) .	Is DTC displayed?	Perform the diagnosis according to DTC.	Go to step 3.
3 CHECK GROUND SHORT OF HARNESS. Turn the ignition to OFF. Disconnect the connector (B301) from the ABSCM & H/U. Disconnect the connector (i10) (Model with the normal meter) or (i11) (Model with the meter with MID) from the combination meter. Measure the resistance between ABSCM connector and chassis ground. Connector & terminal (B301) No. 22 - Chassis ground:	Is the resistance 1 MΩ or more?	Go to step 4.	Repair harness and connector between ABSCM & H/U and combination meter.
4 CHECK ABSCM. Connect the connector (B301) to the ABSCM & H/U. Turn the ignition to ON. Measure the resistance between the combination meter connector and chassis ground soon after the ignition switch is turned to ON (within 1.5 seconds). Connector & terminal Model with the normal meter (i10) No. 5 - Chassis ground: Model with the meter with MID (i11) No. 5 - Chassis ground:	Is the resistance 1 MΩ or more?	Check the combination meter.	Replace the ABSCM only. Refer to REPLACEMENT , ABS Control Module and Hydraulic Control Unit (ABSCM & H/U).