LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2009 >> Allure CX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.8L - DTC P0385 To DTC P2119 >> DTC P0385 >> Component Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Test

  1. Inspect the CKP sensor for looseness and correct installation.
  2. Connect jumper wires from the CKP sensor connector 12-volt reference CKP sensor terminal D and the low reference CKP sensor terminal C to the CKP sensor; turn ON the ignition, with the engine OFF.
  3. Connect a DMM to the CKP sensor signal CKP sensor 2 terminal A at the CKP sensor and observe the Duty Cycle. Pass a steel object by the sensor repeatedly. The Duty Cycle should increment.
    • If the Duty Cycle does not increment, replace the CKP sensor.
scientia non olet · About LEMON Manuals