LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2001 >> Blazer 2D Utility, RWD, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control Modules >> Self-Diagnostic System >> Automatic Transmission Diagnostic System Check

Automatic Transmission Diagnostic System Check

CAUTION: Perform this test only if there is a driveability complaint or if directed here by another procedure.
  1. Ensure ignition switch is in OFF position. Connect scan tool to Data Link Connector (DLC). If scan tool comes on, go to next step. If scan tool does not turn on, see TEST B: SCAN TOOL INOPERATIVE  under SYSTEM TESTS.
  2. Turn ignition switch to ON position. If Malfunction Indicator Light (MIL) illuminates, go to next step. If MIL does not illuminate, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
  3. Attempt to establish communications with PCM. If scan tool communicates with PCM, go to next step. If scan tool does not communicate with PCM, see TEST A: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE  under SYSTEM TESTS.
  4. Use scan tool CAPTURE INFO function to save DTC. If DTCs are present, see DIAGNOSTIC TROUBLE CODE DEFINITIONS . Repair as directed. If no DTCs are listed, repair by symptom. See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
scientia non olet · About LEMON Manuals