Malfunction Indicator Light Does Not Go Off
Diagnosis:
The malfunction indicator light circuit is shorted.
Trouble symptom:
Although malfunction indicator light comes on when the engine runs, DTC is not shown on the Subaru Select Monitor or general scan tool display.
- CHECK DTC.
Read DTC using the Subaru Select Monitor or a general scan tool. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Read Diagnostic Trouble Code (DTC)
Is DTC of engine or LAN system displayed? Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Read Diagnostic Trouble Code (DTC)>OPERATION
Yes: Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>List of Diagnostic Trouble Code (DTC) . Ref. to LAN SYSTEM (DIAGNOSTICS)>LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
No: Go to 2
- CHECK COMBINATION METER.
Perform the self-diagnosis for combination meter system. Ref. to INSTRUMENTATION/DRIVER INFO>Combination Meter System>OPERATION>SELF-DIAGNOSIS DISPLAY MODE
Does the malfunction indicator light illuminate and go off normally?
Yes: Replace the ECM. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>ENGINE CONTROL MODULE (ECM)
No: Replace the meter case assembly of combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER