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Home >> Oldsmobile >> 1998 >> Bravada >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Module >> Diagnosis & Testing >> DTC B3102: Keyless Entry (RFA) Data Link Circuit Low >> Diagnostic Procedures

Diagnostic Procedures

  1. Perform TBC module diagnostic system check. See procedures in TBC MODULE DIAGNOSTIC SYSTEM CHECK  . After performing system check, go to next step.
  2. Disconnect Remote Function Actuator (RFA) module harness connector from receiver. Turn ignition to RUN position, then to OFF position. Check voltage between ground and RFA harness connector terminal No. 2 (Orange wire). If battery voltage is not present, go to next step. If battery voltage is present, go to step 6).
  3. Disconnect Brown TBC module harness connector. Check resistance between ground and TBC module harness connector terminal B4 (Orange wire). If resistance is infinite, go to next step. If resistance is not infinite, go to step 7).
  4. Turn ignition off. Reconnect all components. Clear DTCs. Turn ignition off for 10 seconds. Turn ignition switch to RUN position. Check if DTC B3102 is set as a current code. If code is current, go to next step. If code is not current, problem is intermittent. See DIAGNOSTIC AIDS.
  5. Replace TBC module. Program TBC and perform relearn procedure. See procedures in TBC MODULE PROGRAMMING/RPO CONFIGURATION  and TBC/BCM RELEARN PROCEDURE  . After programming module, go to step 8).
  6. Replace RFA receiver. After replacing receiver, go to step 8).
  7. Repair short to ground in circuit No. 461 (Orange wire). After repairs, go to next step.
  8. Clear DTCs. After clearing DTCs, perform TBC module diagnostic system check. See TBC MODULE DIAGNOSTIC SYSTEM CHECK  .
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