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Malfunction Indicator Light Does Not Blink

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

DIAGNOSIS: 

TROUBLE SYMPTOM: 

Malfunction indicator light does not blink during Inspection Mode.

WIRING DIAGRAM: 

Fig 1: Malfunction Indicator Light - Wiring Diagram
G05019018
MALFUNCTION INDICATOR LIGHT DOES NOT BLINK - DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK STATUS OF MALFUNCTION INDICATOR LIGHT. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the test mode connectors.
  3. Turn the ignition switch to ON. (engine OFF)
 Does the malfunction indicator light illuminate? Go to step 2.  Repair the malfunction indicator light circuit. < Ref. to MALFUNCTION INDICATOR LIGHT DOES NOT COME ON , Malfunction Indicator Light. >
2 CHECK HARNESS BETWEEN COMBINATION METER AND ECM CONNECTOR. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connectors from ECM.
  3. Turn the ignition switch to ON.
 Does the malfunction indicator light illuminate? Repair the short circuit of harness between combination meter and ECM connector. Go to step 3. 
3 CHECK HARNESS BETWEEN TEST MODE CONNECTOR AND CHASSIS GROUND. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connectors from ECM.
  3. Measure the resistance of harness between test mode connector and ECM connector.

    Connector & terminal 

    (B76) No. 1 - (B136) No. 6: 

 Is the resistance less than 1 Ω? Go to step 4.  Repair the harness and connector.
NOTE: In this case, repair the following item:
  • Open circuit of harness between test mode connector and chassis ground
4 CHECK POOR CONTACT. 
Check the poor contact of ECM connector.		 Is there poor contact in ECM connector? Repair the poor contact of ECM connector. Go to step 5. 
5 CHECK HARNESS BETWEEN ECM AND TEST MODE CONNECTOR. 
  1. Connect the test mode connector.
  2. Measure the resistance of harness between ECM and chassis ground.

    Connector & terminal 

    (B135) No. 27 - Chassis ground: 

 Is the resistance less than 1 Ω? Go to step 6.  Repair the open circuit of harness between ECM and test mode connector.
6 CHECK POOR CONTACT. 
Check the poor contact of ECM connector.		 Is there poor contact in ECM connector? Repair the poor contact of ECM connector. Replace the ECM. < Ref. to ENGINE CONTROL MODULE (ECM) . >
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