LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2001 >> Corvette Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 5.7L >> Diagnostic System Checks >> Engine Cooling Diagnostic System Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Cooling Diagnostic System Check

  1. Connect scan tool. Turn ignition on. If scan tool powers up, go to next step. If scan tool does not power up, go to TEST A: SCAN TOOL DOES NOT POWER UP under SYSTEM TESTS in appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
  2. Turn ignition on. Attempt to establish communication with Instrument Panel Cluster (IPC) and Powertrain Control Module (PCM). If scan tool communicates with these control modules, go to next step. If scan tool does not communicate with these control modules, go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SELF-DIAGNOSTIC SYSTEM in appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
  3. Display DTCs for PCM. If scan tool displays any DTCs, go to next step. If scan tool does not display any DTCs, diagnose cooling system by symptom. See appropriate article in ENGINE COOLING.
  4. If scan tool displays any DTCs that begin with "U", go to go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SYSTEM TESTS in appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT. If scan tool does not display any DTCs that begin with "U", diagnose any other DTCs that are set. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .
scientia non olet · About LEMON Manuals