Symptom Diagnosis

2001 Chevrolet Venture Base, Van Cargo ExtendedSECTION Symptom Diagnosis

If no DTCs are stored, perform appropriate symptom diagnostic test as necessary. See SYMPTOM DIAGNOSTIC INDEXΒ  table.

SYMPTOM DIAGNOSTIC INDEX

Symptom (1) Test
ABS Indicator Always On AΒ 
ABS Indicator Inoperative BΒ 
TRACTION OFF Indicator Always On CΒ 
TRACTION OFF Indicator Inoperative DΒ 
Scan Tool Does Not Communicate With Class 2 Device EΒ 
(1) See appropriate test under SYMPTOM TESTSΒ  .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.