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Home >> Dodge and Ram >> 2000 >> Durango 4.7 N, Part Time >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Modules >> System Tests >> Communications >> No Response: Controller Anti-Lock Brake (CAB) Module
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No Response: Controller Anti-Lock Brake (CAB) Module

CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector or battery.
  1. Turn ignition switch to ON position. Using a scan tool, select BODY, then Mechanical Instrument Cluster (MIC), then ENGINE. If scan tool established communications with any modules, go to next step. If scan tool does not communicate with any modules. See BUS (+) &/OR BUS (-) OPEN  or BUS (+) & BUS (-) SHORTED TOGETHER  .
  2. Turn ignition switch to OFF position. Remove and inspect fuse No. 3 (15-amp on Dakota; 10-amp on Durango) in Junction Block (JB). If fuse is blown, go to next step. If fuse is okay, go to  7 .
  3. Turn ignition switch to OFF position. Replace fuse No. 3 (15-amp on Dakota; 10-amp on Durango) in JB. Turn ignition switch to ON position. Inspect wiring harness and connectors between JB and Controller Anti-lock Brake (CAB) module. Perform wiggle test and check poor connection or intermittent short to ground, repair wiring harness as necessary. Perform CONTROLLER ANTI-LOCK BRAKE (CAB) VERIFICATION TEST  . If wiring harness is okay, go to next step.
  4. Turn ignition switch to OFF position. Remove fuse No. 3 (15-amp) in JB. Disconnect CAB module connector. Measure resistance between ground and CAB connector terminal No. 4 (Red/Dark Blue wire). If reading is less than 5 ohms, repair short to ground in Red/Dark Blue wire. Perform CONTROLLER ANTI-LOCK BRAKE (CAB) VERIFICATION TEST  . If reading is 5 ohms or more, go to next step.
  5. Turn ignition switch to OFF position. Connect CAB module. Install fuse No. 3 (15-amp on Dakota; 10-amp on Durango) in JB. Disconnect any other components connected to fuse No. 3. Turn ignition switch to ON position. Using scan tool, actuate ant0i-lock brake pump motor. If fuse No. 3 blows, go to step  12 . If fuse No. 3 (15-amp) is okay, go to next step .
  6. Turn ignition switch to OFF position. Perform CONTROLLER ANTI-LOCK BRAKE (CAB) VERIFICATION TEST  .
  7. Turn ignition switch to OFF position. Disconnect CAB module connector. Remove fuse No. 3 (15-amp) from JB. Measure resistance of Red/Dark Blue wire between CAB connector terminal No. 4 and appropriate terminal in JB for fuse No. 3. If reading is less than 5 ohms, go to next step. If reading is 5 ohms or more, repair open in Red/Dark Blue wire between JB and CAB connector. Perform CONTROLLER ANTI-LOCK BRAKE (CAB) VERIFICATION TEST  .
  8. Measure resistance between ground and CAB connector terminal No. 13 (Black wire). If reading is less than one ohm, go to next step. If reading is one ohm or more, repair open in Black wire. Perform CONTROLLER ANTI-LOCK BRAKE (CAB) VERIFICATION TEST  .
  9. Turn ignition switch to OFF position. Disconnect CAB module connector. Connect a fused jumper wire between CAB connector terminals No. 3 (Violet/Brown wire) and No. 10 (White/Black wire). Turn ignition switch to ON position. Using scan tool, perform CCD bus test. If scan tool display reads BUS SHORTED TOGETHER, perform CONTROLLER ANTI-LOCK BRAKE (CAB) VERIFICATION TEST  . If scan tool does not read BUS SHORTED TOGETHER, go to next step.
  10. Turn ignition switch to OFF position. Remove jumper wire. Connect a fused jumper wire between CAB connector terminal No. 3 (Violet/Brown wire) and ground. Turn ignition switch to ON position. Using scan tool, perform CCD bus test. If scan tool display reads BUS SHORTED TO GROUND, go to next step. If scan tool does not read BUS SHORTED TO GROUND, locate and repair open in Violet/Brown wire. Perform CONTROLLER ANTI-LOCK BRAKE (CAB) VERIFICATION TEST  .
  11. Remove jumper wire. Connect a fused jumper wire between CAB connector terminal No. 10 (White/Black wire) and ground. Turn ignition switch to ON position. Using scan tool, perform CCD bus test. If scan tool display reads BUS SHORTED TO GROUND, go to next step. If scan tool does not read BUS SHORTED TO GROUND, locate and repair open in White/Black wire. Perform CONTROLLER ANTI-LOCK BRAKE (CAB) VERIFICATION TEST  .
  12. Turn ignition switch to OFF position. Replace CAB module. Perform CONTROLLER ANTI-LOCK BRAKE (CAB) VERIFICATION TEST  .