AWD Warning Light Display: Diagnosis
Detecting condition:
- CAN communication is lost with the combination meter.
- Combination meter malfunction
Trouble symptom:
- AWD light remains lit after engine start.
- AWD light is blinking immediately after engine start.
- CHECK TCM
.
Read the DTC of [Transmission] using the Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)
Is DTC U0155 or U0423 displayed?
Yes : Check the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE
No : Go to 2.
- CHECK TCM
.
Read the DTC of [Transmission] using the Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)
Are DTCs other than U0155 and U0423 displayed?
Yes : Perform the diagnosis according to the DTC. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST
No : Go to 3.
- CHECK COMBINATION METER
.
Read the DTC of [Combination Meter] using the Subaru Select Monitor. Ref. to COMBINATION METER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)
Are any DTCs displayed?
Yes : Perform the diagnosis according to the DTC. Ref. to COMBINATION METER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST
No : Go to 4.
- CHECK AWD LIGHT
.
Start the engine.
Does the AWD light go off?
Yes : Current condition is normal. Go back to Basic Diagnostic Procedure. Ref. to TRANSMISSION (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE
No : Go to 5.
- CHECK DTC
.
Read the DTC of [Transmission] using the Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)
Are any DTCs displayed?
Yes : Perform the diagnosis according to the DTC. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST
No : Go to 6.
- CHECK COMBINATION METER
.
Check the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE
Is the check result OK?
Yes : Replace the TCM. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>TRANSMISSION CONTROL MODULE (TCM)
No : Repair or replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER