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Check Security Indicator Light Circuit

CHECKING SECURITY INDICATOR LIGHT CIRCUIT

Step Check Yes No
1 : CHECK SECURITY INDICATOR LIGHT. 
  1. Disconnect the security control unit harness connector.
  2. Ground the harness connector terminal with a suitable wire.

Connector & terminal 
(B93) No. 9 - chassis ground: 		 Does the security indicator light illuminate? Replace the security control unit. Go to step 2  .
2 : CHECK POWER SUPPLY FOR SECURITY INDICATOR LIGHT. 
  1. Disconnect the connector from the combination meter.
  2. Measure the voltage between the combination meter harness connector terminal and chassis ground.

Connector & terminal 
(i10) No. 8 (+) - chassis ground (-): 		 Is the voltage more than 10 V? Go to step 3.  Check the harness for open circuits and shorts between the combination meter and the fuse.
3 : CHECK SECURITY INDICATOR LIGHT CIRCUIT. 
Measure the resistance between the combination meter harness connector terminal and security control unit harness connector terminal.
Connector & terminal 
(i12) No. 4 - (B93) No. 9: 		 Is the resistance less than 10 ohm? Replace the combination meter printed circuit. Check the harness for open circuits and shorts between the combination meter and security control unit.
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