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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 258 (Engine Controls Self-Diagnostics - 2.2L) >> Diagnostic Tests >> DTC P1336: Crankshaft Position System Variation Not Learned >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page is about a different car, the 2003 GMC Sonoma and 2003 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform diagnostic system check - engine controls. See DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS  under SELF-DIAGNOSTIC SYSTEM. After performing diagnostic system check, go to next step.
  2. Perform the CKP system variation learn procedure. Refer to CRANKSHAFT POSITION SENSOR SYSTEM VARIATION LEARN PROCEDURE  under PROGRAMING. Is the action complete? If yes, go to next step. If no, see DIAGNOSTIC AIDS  .
  3. Clear the DTCs with a scan tool. Turn ignition off. Start engine. Operate the vehicle within the Conditions for Running the DTC. See CONDITIONS FOR RUNNING DTC  . Does the DTC run and pass? If yes, go to next step. If no, go to step  2 .
  4. Using scan tool, select CAPTURE INFO, REVIEW INFO. Is any undiagnosed DTCs displayed? If yes, diagnose affected DTC. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  . If no, system is okay.
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