Theft Alarm System

Checking The Input Using The Scan Tool:

When using the Scan Tool

1. Connect the scan tool to the data link connector.
CAUTION:
Turn off the ignition switch beforehand whenever the scan tool is connected or disconnected.

Checking The Input Using A Voltmeter:

When using a Voltmeter

1. Connect a voltmeter to the ETACS terminal and the ground terminal of the data link connector using the special tool.

Tester-Output Chart:

2. Make sure that when the following switches are turned on, the output shown in the illustration is delivered. (Only those switches which are related to the theft-alarm system are listed here.)
^ Driver and front passenger door switches
^ Headlight switch
^ Driver and front passenger door lock switches
^ Passing light switch
^ Hood switch
^ Liftgate switch
^ Door key cylinder switch
^ Liftgate switch

If there is no output of a voltage pattern at all, check for a malfunction of that switch or for damaged or disconnected wiring.