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Home >> Chevrolet >> 2001 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System With Traction Control System - BOSCH 5.3 >> Diagnostic Tests >> DTC U1650: Chassis System Dedicated Bus Controller Malfunction (Intrigue) >> Diagnosis

DTC U1650: Chassis System Dedicated Bus Controller Malfunction (Intrigue): Diagnosis

  1. Perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. Go to next step.
  2. Turn ignition off. Disconnect EBCM. Install Universal Pinout Box (J 39700) with Cable Adapter (J 39700-530) to EBCM connector only. Disconnect steering angle sensor. Using DVOM, Check CAN HI (Tan/White wire) and CAN LO (Tan wire) circuits for short to ground between steering angle sensor and EBCM. If problem was found, repair as necessary. After repairs, go to step  8 . If problem was not found, go to next step.
  3. Using DVOM, check CAN HI and CAN LO circuits between steering angle sensor and EBCM for being shorted together. If problem was found, repair as necessary. After repairs, go to step  8 . If problem was not found, go to next step.
  4. Perform steering angle sensor centering procedure. See STEERING ANGLE SENSOR CENTERING  under PROGRAMMING. If centering procedure was successfully completed, go to next step. If centering procedure was not successfully completed, go to step  6 .
  5. Using scan tool, clear DTCs. Test drive vehicle. See DIAGNOSTIC TEST DRIVE  under DTC C0252: ACTIVE BRAKE CONTROL SENSORS UNCORRELATED (INTRIGUE). If DTC U1650 reset, go to step  7 . If DTC U1650 did not reset, go to step  8 .
  6. Replace steering angle sensor. See appropriate STEERING COLUMNS article in STEERING. After repairs, go to step  8 .
  7. Replace EBCM. See ELECTRONIC BRAKE CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs, go to next step.
  8. Using scan tool, clear DTCs. Operate vehicle. If DTC does not reset, system is okay.
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