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Check Hazard Light Operation

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.
HAZARD LIGHT OPERATION

Step Check Yes No
1 CHECK HAZARD LIGHT OPERATION 
Check if the hazard light illuminates when the hazard switch is turned to ON.		 Does the hazard light blink? Go to step 2.  Check the hazard light circuit.
2 CHECK KEYLESS ENTRY CONTROL MODULE OUTPUT SIGNAL. 
  1. Remove the key from the ignition switch.
  2. Open the driver's window, and then close all doors.
  3. Lock all doors with the transmitter to arm the security system.
  4. Unlock all doors with the door lock switch.
  5. Measure the voltage between the keyless entry control module harness connector terminal and chassis ground when any door is open.

    Connector & terminal 

    (B176) No. 1, 13 (+) - Chassis ground (-): 

 Is the measured value more than 10 V? Check the harness for open circuits and shorts between the keyless entry control module and turn signal light. Replace the keyless entry control module.
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