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Home >> Subaru >> 2010 >> Legacy Premium, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Controls - Engine (Diagnostics) (H4DOTC - 2.5L DOHC Turbo)) >> Malfunction Indicator Light >> Malfunction Indicator Light Remains Blinking >> Wiring Diagram

Malfunction Indicator Light Remains Blinking: Wiring Diagram

WARNING: This page is about a different variant/trim than selected.
Fig 1: Malfunction Indicator Light - Wiring Diagram
G06647746Courtesy of SUBARU OF AMERICA, INC.
DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK DELIVERY (TEST) MODE FUSE  .
  1. Check the delivery (test) mode fuse is removed.
  2. Turn the ignition switch to ON.
Does the malfunction indicator light blink? Go to step . System is normal.
NOTE: Malfunction indicator light blinks when delivery (test) mode fuse is connected.
2 CHECK HARNESS BETWEEN ECM AND CHASSIS GROUND TERMINAL  .
  1. Turn the ignition switch to OFF.
  2. Disconnect the connector from ECM.
  3. Measure the resistance of harness between ECM and chassis ground.

    Connector & terminal 

    (B136) No. 34 - Chassis ground: 

Is the resistance less than 5 Ω? Repair the short circuit to ground in harness between ECM and delivery (test) mode fuse. Replace the ECM. Ref. to ENGINE CONTROL MODULE (ECM) .