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. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)
Is DTC displayed?
Yes : Perform the diagnosis according to the DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST
No : Go to 2.
- CHECK VDC CONTROL MODULE
.
Using the Subaru Select Monitor, read data of [ABS Warning Lamp] in the [Data Monitor] of [Brake Control]. Ref. 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. Ref. to BRAKE CONTROL (DIAGNOSTICS)>FREEZE FRAME DATA
- Using the Subaru Select Monitor, perform the clear memory of [Brake Control]. Ref. to COMMON (DIAGNOSTICS)>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. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)
Is DTC displayed?
Yes : Perform the diagnosis according to the DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST
No : Go to 5.
- CHECK LAN SYSTEM
.
Check the LAN system. Ref. 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. Ref. to COMBINATION METER (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE
Is the check result OK?
Yes : Replace the VDC Control Module & H/U. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDC CONTROL MODULE & H/U)
No : Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER>REMOVAL