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Test 4A - Repairing Ignition Input Circuit

WARNING: This page is about a different car, the 1995 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For connector terminal identification, see Figure .
NOTE: Perform TEST 1A  before proceeding.
  1. Turn ignition off. Disconnect VTA module. See Figure in TEST 1A and see VEHICLE THEFT ALARM MODULE  under REMOVAL & INSTALLATION. Inspect connector, clean and repair as needed. Turn ignition to RUN position. Using DRB in voltmeter mode, check voltage at VTA module connector terminal No. 3 (White/Black wire). If voltage is less than 10 volts, go to next step. If voltage is more than 10 volts, replace VTA module. Perform TEST VER-1A  .
  2. Check fuse No. 21. If fuse is okay, go to next step. If fuse is open, with DRB in ohmmeter mode, check resistance at VTA module connector terminal No. 3 (White/Black wire). If resistance is more than 5 ohms, replace fuse. Perform TEST VER-1A  . If resistance is less than 5 ohms, repair short to ground in White/Black wire circuit. Replace fuse. Perform TEST VER-1A  .
  3. If fuse No. 21 is okay, with DRB in voltmeter mode, check voltage Dark Blue/Gray wire circuit at left side of fuse No. 21 receptacle. If voltage is less than 10 volts, repair open Dark Blue/Gray wire circuit between fuse receptacle and ignition switch. Perform TEST VER-1A  . If voltage is more than 10 volts, repair open White/Black wire circuit between fuse receptacle and VTA module connector. Perform TEST VER-1A  .
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