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No Response From Air Bag Control Module

  1. Remove fuse No. 27 (10-amp) from junction block. See COMPONENT LOCATIONS  . If fuse is blown, go to next step. If fuse is okay, go to step  5 .
  2. Turn ignition on. Using a DVOM, measure voltage between ground and ignition switch output run/start terminal on fuse No. 27 socket. If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open ignition switch output run/start circuit. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  3. Turn ignition off. Using DVOM, measure resistance between ground and fused ignition switch output terminal on junction block fuse No. 27. If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, repair fused ignition switch output circuit for short to ground and replace fuse. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
    WARNING: Disconnect battery and wait 2 minutes before disconnecting air bag control module. If air bag control module is dropped, it must be replaced.
  4. Ensure ignition is off. Disconnect battery and wait 2 minutes. Disconnect Air Bag Control Module (ACM) connector. Using DVOM, measure resistance between ground and ACM connector terminal No. 17 (Dark Blue/Yellow wire). See Fig 1 . If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, repair short to ground in Dark Blue/Yellow wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  5. Reconnect battery. Turn ignition on. Using a DVOM, measure voltage between ground and ignition switch output run/start terminal on fuse No. 27 socket. If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open ignition switch output run/start circuit. See appropriate wiring diagram in POWER DISTRIBUTION article in WIRING DIAGRAMS. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  6. Ensure ignition is off. Install fuse No. 27. Disconnect battery and wait 2 minutes. Disconnect Air Bag Control Module (ACM) connector. Reconnect battery and turn ignition on. Using DVOM, measure voltage between ground and terminal No. 17 (Dark Blue/Yellow wire) on ACM connector. See Fig 1 . If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Dark Blue/Yellow wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  7. Turn ignition off. Using DVOM, measure resistance between ground and ACM connector terminal No. 10 (Black/Pink wire). If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open in Black/Pink wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  8. Ensure ACM connector is disconnected and battery is connected. Turn ignition on. Using a DVOM, measure voltage between ground and ACM connector terminal No. 19 (Violet/Brown wire). If voltage is 1.8-2.6 volts, go to next step. If voltage is not 1.8-2.6 volts, repair open in Violet/Brown wire between DLC and ACM. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  9. Measure voltage between ground and ACM connector terminal No. 18 (White/Black wire). If voltage is 1.8-2.6 volts, replace ACM. See AIR BAG CONTROL MODULE  under REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS. If voltage is not 1.8-2.6 volts, repair open in White/Black wire between DLC and ACM. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
Fig 1: Identifying Air Bag Control Module Connector Terminals
G98F00093Courtesy of CHRYSLER CORP.
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