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Check Interrupt Relay Circuit

DIAGNOSTIC PROCEDURE CHART

Step Check Yes No
1 CHECK INTERRUPT RELAY. 
Remove and check interrupt relay. <Ref. to INTERRUPT RELAY . >		 Is the interrupt relay normal? Go to step 2.  Replace the interrupt relay.
2 CHECK INTERRUPT RELAY POWER SUPPLY. 
Measure the voltage between interrupt relay harness connector terminal and chassis ground.

Connector & terminal 

(B59) No. 1 (+) - Chassis ground (-): 

 Is the voltage more than 10 V when ignition switch is turned to START? Go to step 3.  Check the harness for open circuits or shorts between the interrupt relay and the ignition switch.
3 CHECK THE HARNESS BETWEEN INTERRUPT RELAY AND KEYLESS ENTRY CONTROL MODULE. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the keyless entry control module harness connector.
  3. Measure the resistance of the harness between interrupt relay harness connector terminal and keyless entry control module harness connector.

    Connector & terminal 

    (B59) No. 3 - (B176) No. 12: 

 Is the resistance less than 10 Ω? Replace the keyless entry control module. Check the harness for open or short circuits between interrupt relay and keyless entry control module.
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