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Home >> Oldsmobile >> 1998 >> Aurora >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Trouble Codes >> DTC P1571 - Traction Control System Pulse Width Modulated PWM) Circuit No Frequency >> Diagnostic Procedures

Diagnostic Procedures

  1. Perform POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK , then go to next step.
  2. Using scan tool, check for ABS/TCS related DTC(s). If DTCs are present, diagnose affected DTC(s) first. If other DTCs are not present, go to next step.
  3. Check for intermittent terminal connection, intermittent open or short to the desired torque PWM input circuit between PCM connector C2 and EBTCM harness connector terminals. Repair as necessary. If circuit or terminal is okay, fault is not present. See DIAGNOSTIC AIDS.
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