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Home >> Buick >> 2001 >> Century Limited >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System With Traction Control System - DELPHI 7 >> Diagnostic Tests >> DTC C1271, DTC C1272, DTC C1273, DTC C1274: Commanded State Of Driver And Actual State Of Control Circuit Does Not Match ("W" Body)

DTC C1271, DTC C1272, DTC C1273, DTC C1274: Commanded State Of Driver And Actual State Of Control Circuit Does Not Match ("W" Body)

  1. Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. After performing diagnostic system check, go to next step.
  2. Install scan tool. Turn ignition, with engine off. Using scan tool, clear DTCs and perform automated test. Does DTC resets as current DTC, go to next step. If DTC does not reset as current DTC, problem is intermittent. See INTERMITTENTS & POOR CONNECTIONS  under DIAGNOSIS & TESTING.
  3. Replace EBCM. After replacing EBCM, go to next step.
  4. Using scan tool, clear DTCs. Perform automated test again. If DTC resets, go to step  2. If DTC does not reset, system is okay.
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