Check Engine Control Module

WARNING: This page is about a different car, the 2006 Subaru Baja. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ENGINE CONTROL MODULE CHART

Step	Check	Yes	No
1 CHECK ENGINE CONTROL MODULE SIGNAL. Start the engine. Measure voltage between engine control module connector and engine ground. Connector & terminal TURBO model: (B134) No. 23 (+) - Engine ground (-): NON-TURBO model: (B134) No. 10 (+) - Engine ground (-):	Is the measured value within 0 V to 14 V?	Go to step 2.	Check engine control module. < Ref. to BASIC DIAGNOSTIC PROCEDURES (H4SO) or < Ref. to BASIC DIAGNOSTIC PROCEDURE (H4DOTC). >
2 CHECK HARNESS BETWEEN COMBINATION METER AND ENGINE CONTROL MODULE. Turn ignition switch to OFF. Disconnect connector from engine control module and combination meter. Measure resistance between engine control module harness connector and combination meter harness connector. Connector & terminal TURBO model: (B134) No. 23 - (I11) No. 7: NON-TURBO model: (B134)No. 10 - (ill)No. 7:	Is the measured value less than 10 Q?	Check tachometer. < Ref. to REMOVAL , TACHOMETER. >	Repair wiring harness.