Abs Warning Light Does Not Go Off
Detecting condition:
- Defective combination meter
- Defective engine
- Defective CAN communication
Trouble symptom:
ABS warning light does not go off when starting the engine.
- READ DTC
.
Read the DTC of [Brake Control] using the Subaru Select Monitor. Refer to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
Is DTC displayed?
Yes : Perform the diagnosis according to the DTC. Refer to BRAKE CONTROL (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST .
No : Go to 2.
- CHECK VDCCM
.
Using the Subaru Select Monitor, read data of [ABS Warning Lamp] in the [Data Monitor] of [Brake Control]. Refer to BRAKE CONTROL (DIAGNOSTICS)>Data Monitor .
Is [ABS Warning Lamp] set to [ON]?
Yes : Go to 3.
No : Go to 5.
- CHECK WARNING LIGHT
.
- Save the freeze frame data. Refer to BRAKE CONTROL (DIAGNOSTICS)>Freeze Frame Data .
- Using the Subaru Select Monitor, perform the clear memory of [Brake Control]. Refer to COMMON (DIAG)>CLEAR MEMORY
.
Does the ABS warning light go off?
Yes : Normal. Perform the inspection mode to check that the light does not turn ON again.
No : Go to 4.
- READ DTC
.
After driving the vehicle at 40 km/h (25 MPH) or more, read DTCs of [Brake Control] using Subaru Select Monitor. Refer to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
Is DTC displayed?
Yes : Perform the diagnosis according to the DTC. Refer to BRAKE CONTROL (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST .
No : Go to 5.
- CHECK LAN SYSTEM
.
Check the LAN system. Refer to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .
Is the check result OK?
Yes : Go to 6.
No : Perform the diagnosis for LAN system.
- CHECK COMBINATION METER
.
Check the combination meter. Refer to COMBINATION METER (DIAGNOSTICS)>Basic Diagnostic Procedure .
Is the check result OK?
Yes : Replace the VDCCM&H/U. Refer to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM&H/U) .
No : Replace the combination meter. Refer to INSTRUMENTATION/DRIVER INFO>Combination Meter>REMOVAL .