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Home >> Subaru >> 2005 >> Outback R VDC Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Engine Controls - Engine (Diagnostics) (H4DOTC)) >> Malfunction Indicator Light >> Malfunction Indicator Light Remains Blinking.

Malfunction Indicator Light Remains Blinking.

WARNING: This page is about a different variant/trim than selected.

DIAGNOSIS: 

Test mode connector circuit is shorted.

TROUBLE SYMPTOM: 

Malfunction indicator light blinks when test mode connector is not connected.

WIRING DIAGRAM: 

Fig 1: Wiring Diagram - Malfunction Indicator Light Remains Blinking
G03829965Courtesy of SUBARU OF AMERICA, INC.
DIAGNOSTIC PROCEDURE (MALFUNCTION INDICATOR LIGHT REMAINS BLINKING)

Step Check Yes No
1 
CHECK TEST MODE CONNECTOR. 
  1. Disconnect the test mode connectors
  2. Turn the ignition switch to ON.
 Does the malfunction indicator light blink? Go to step 2.  System is in good order.
NOTE: Malfunction indicator light blinks at a cycle of 3 Hz when test mode connector is connected.
2 
CHECK HARNESS BETWEEN ECM CONNECTOR AND CHASSIS GROUNDING TERMINAL. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connector from ECM.
  3. Measure the resistance of harness between ECM connector and chassis ground.

    Connector & terminal 

    (B137) No. 15 - Chassis ground: 

 Is the resistance less than 5 ? Repair the short circuit in harness between ECM and test mode connector. Replace the ECM. < Ref. to ENGINE CONTROL MODULE (ECM) . >
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