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Test 10A - Not Receiving Bus Messages Correctly

NOTE: For connector terminal identification see CONNECTOR IDENTIFICATION  . For wiring diagrams, see WIRING DIAGRAMS  . Perform, after each repair, VERIFICATION TEST VER-1A - VERIFICATION PROCEDURE  .
CAUTION: Always turn ignition off prior to disconnecting any module connector.
  1. Disconnect anti-lock brake controller module. Controller module is mounted to top of ABS hydraulic unit. Turn ignition on. If scan tool displays BUS OPERATIONAL, replace anti-lock brake controller module. If scan tool does not display BUS OPERATIONAL, go to next step.
  2. Disconnect compass mini-trip computer. Turn ignition on. If scan tool displays BUS OPERATIONAL, replace compass mini-trip computer. If scan tool does not display BUS OPERATIONAL, go to next step.
  3. Turn ignition off and wait 2 minutes. Disconnect Air Bag Control Module (ACM). ACM is located under front of center console. Turn ignition on. If scan tool displays BUS OPERATIONAL, replace ACM. If scan tool does not display BUS OPERATIONAL, go to next step.
  4. Disconnect Central Timer Module (CTM). CTM is located behind right corner of dash, behind glove box. Turn ignition on. If scan tool displays BUS OPERATIONAL, replace CTM. If scan tool does not display BUS OPERATIONAL, replace scan tool cable or scan tool.
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