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Home >> Chevrolet >> 2001 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Control System Self-Diagnostics - 5.7L) >> Diagnostic Tests >> DTC P1571: Traction Control Torque Request Circuit ("Y" Body) >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page is about a different car, the 2000 Pontiac Firebird, 2000 Chevrolet Corvette, and 2000 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK . After performing OBD system check, go to next step.
  2. Turn ignition on, with engine off. Using scan tool, read DTCs. If any ABS/Traction control DTCs are also set, diagnose affected DTCs first. If no ABS/Traction control DTCs are set, go to next step.
  3. Turn ignition off. Disconnect EBTCM connector. Turn ignition on. Using a DVOM and Connector Test Kit Adaptor (J-35616-A), check voltage between ground and EBTCM connector, DT circuit. If voltage reading is about 5 volts, see appropriate ANTI-LOCK article in BRAKES. If voltage reading is not as specified, go to next step.
  4. Using a DVOM, check voltage between ground and EBTCM connector, DT circuit. If voltage reading is about battery voltage, go to step  7. If voltage reading is not as specified, go to next step.
  5. Connect a test light between battery positive and EBTCM connector, DT circuit. If test light illuminates, go to step  8. If test light does not illuminate, go to next step.
  6. Check for open in DT circuit. Repair as necessary. After repairs, go to step  11. If circuit is okay, go to step  9.
  7. Repair short to battery voltage on DT circuit. After repairs, go to step  11.
  8. Repair short to ground on DT circuit. After repairs, go to step  11.
  9. Check terminal connections at PCM. Repair terminals as necessary. After repairs, go to step  11. If terminals are okay, go to next step.
  10. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  11. Using scan tool, select DTC, CLEAR INFO function. Start and warm engine to normal operating temperature. Select DTC, SPECIFIC, then enter this DTC. Operate vehicle within conditions for setting this DTC. If scan tool indicates that this test ran and passed, go to next step. If scan tool does not indicate that this test ran and passed, repeat step  2.
  12. Using scan tool, select CAPTURE INFO, REVIEW INFO function. If any undiagnosed DTCs are displayed, go to applicable DTC test.
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