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Check Horn Operation

CHECKING HORN OPERATION

Step Check Yes No
1 : CHECK HORN OPERATION. 
Make sure the horn sounds when the horn switch is pushed.		 Does the horn sound? Go to step 2.  Check the horn circuit.
2 : CHECK HORN OPERATION. 
  1. Disconnect the keyless entry control unit harness connector.
  2. Ground the harness connector terminal with a suitable wire.

Connector & terminal 
(B176) No. 13 - chassis ground: 		 Does the horn sound? Replace the keyless entry control unit. Check the harness for open circuits or shorts between the keyless entry control unit and horn relay.
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