Engine Coolant Temperature Light Blinks In Red And Blue Alternately
- CHECK DTC (CURRENT MALFUNCTION).
Read DTC of engine. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Read Diagnostic Trouble Code (DTC) . Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>Read Diagnostic Trouble Code (DTC) .
Is any of [ENGINE COOLANT TEMPERATURE SENSOR 1 CIRCUIT RANGE/PERFORMANCE], [ENGINE COOLANT TEMPERATURE SENSOR 1 CIRCUIT LOW], [ENGINE COOLANT TEMPERATURE SENSOR 1 CIRCUIT HIGH] displayed?
- Yes : Perform the diagnosis for the displayed DTCs.
- No : Go to 2.
- CHECK DTC (CURRENT MALFUNCTION).
- Start the engine.
- Read all DTCs. Ref. to LAN SYSTEM (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .
Is DTC U**** displayed?
- Yes : Perform the diagnosis according to the basic diagnostic procedure in LAN SYSTEM (DIAGNOSTICS). Ref. to LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure .
- No : Go to 3.
- CHECK THE ENGINE COOLANT TEMPERATURE LIGHT.
Connect the Subaru Select Monitor, and perform forced operation of the engine coolant temperature light with [Active Test] for the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>Active Test .
Do the indicated amount on Subaru Select Monitor and the engine coolant temperature light indication match?
- Yes : Perform a unit inspection of the engine coolant temperature sensor. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Engine Coolant Temperature Sensor . Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Engine Coolant Temperature Sensor .
- No : Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>Combination Meter .