Theft Deterrent System: Inspection

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Inspect theft deterrent horn operation :
Connect the positive (+) lead from the battery to the terminal 1 and negative (-) lead to theft deterrent horn body, and check that the theft deterrent horn blows.

Fig 1: Testing Horn
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If operation is not as specified, replace the horn.
Inspect engine hood courtesy switch continuity :

Fig 2: Identifying Engine Hood Courtesy Switch Terminals & Positions
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Fig 3: Engine Hood Courtesy Switch Specifications
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If continuity is not as specified, replace the switch.
Inspect engine hood courtesy switch circuit : See INSPECTION .