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Home >> Chevrolet >> 2001 >> Impala Base, 3.8 K >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Anti-Lock Brake System With Traction Control System - BOSCH 5.3) >> Diagnostic Tests >> DTC C0240: Pcm Traction Control Not Allowed >> Diagnosis

DTC C0240: Pcm Traction Control Not Allowed: Diagnosis

WARNING: This page is about a different car, the 2001 Pontiac Grand Prix, 2001 Pontiac Firebird, 2001 Oldsmobile Intrigue, and 2001 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. Go to next step.
  2. Turn ignition on, engine off. Using scan tool, read any ABS/TCS DTCs. If any DTCs are set, go to appropriate DTC for diagnosis. If no other DTCs are set, go to next step.
  3. If DTC C0240 is set as a current code, go to step  5 . If DTC C0240 is not set, go to next step.
  4. Install scan tool and clear DTC. Remove scan tool. Carefully drive vehicle at speed greater than 8 MPH for several minutes. If DTC C0240 is set as a current code, go to next step. If DTC C0240 is not set, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
  5. Perform powertrain OBD system check. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If vehicle passes OBD system check, go to next step. If vehicle did not pass OBD system check, perform tests recommended in self-diagnostics article.
  6. Using scan tool, clear DTCs. Operate vehicle. If DTC does not reset, system is okay.
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