FixVault

Malfunction Indicator Light Remains Blinking: Wiring Diagram

Fig 1: Malfunction Indicator Light Wiring Diagram (Delivery Test Mode Fuse Circuit Shorted)
G00523888Courtesy of SUBARU OF AMERICA, INC.
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 2.  System is normal.
NOTE: Malfunction indicator light blinks when delivery (test) mode fuse is connected.
2 CHECK HARNESS BETWEEN ECM AND DELIVERY (TEST) MODE FUSE 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connectors 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 1 MΩ? Replace the ECM. Refer to ENGINE CONTROL MODULE (ECM) Engine Control Module (ECM). Repair the short circuit to ground in harness between ECM and delivery (test) mode fuse.