LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 2001 >> Aztek Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Body Control Modules) >> Programming >> Powertrain Control Module >> Crankshaft Position Sensor Variation Learn Procedure (3.4L)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Crankshaft Position Sensor Variation Learn Procedure (3.4L)

WARNING: This page is about a different car, the 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, 2001 Chevrolet Monte Carlo, and 2001 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Procedure must be performed if any of following have been done or is present:
    • Electronically Erasable Programmable Read Only Memory (EEPROM) was reprogrammed.
    • If Diagnostic Trouble Code (DTC) P1336 is present.
    • If crankshaft, crankshaft position sensor, engine, Powertrain Control Module (PCM) or vibration damper have been replaced.
  2. Crankshaft Position (CKP) sensor variation compensating values are stored in PCM after a learn procedure has been performed. If actual CKP sensor values are not within specification, DTC P0300 will be stored in PCM.
  3. Using scan tool, check for stored DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  under SELF-DIAGNOSTIC SYSTEM. Repair as necessary. If no DTCs are present, or if DTC P1336 is present, go to next step. If any DTCs are present, except for P1336, perform test procedures for specified DTC and repair as necessary. Ensure all DTCs are cleared from PCM. Go to next step.
  4. Ensure ignition is off. Apply parking brake. Block front wheels. Ensure hood is closed. Start engine and warm engine until engine coolant temperature is at least 158°F (70°C). Turn ignition switch to OFF position.
    NOTE: Ensure engine coolant temperature is at least 158°F (70°C) before performing CKP sensor variation learn procedure.
  5. Using scan tool, select and enable CKP sensor variation learn procedure. Start engine. Apply parking brake. Ensure transaxle is in Park.
  6. Increase accelerator pedal position until CKP system variation learn fuel cut-off is reached. CKP system variation learn fuel cut-off is reached at 5150 RPM. DO NOT release accelerator pedal until second fuel cut-off is reached. Crankshaft position system variation compensating values are learned when RPM decreases back to idle.
  7. Check scan tool for status of DTC P1336. If scan tool indicates DTC P1336 ran and passed, CKP sensor variation learn procedure is complete. If scan tool indicates DTC P1336 failed or was not run, check for any other DTCs. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If any other DTCs are present, perform test procedures for specified DTC and repair as necessary. If no other DTCs are present, repeat CKP sensor variation learn procedure.
scientia non olet · About LEMON Manuals