Crankshaft Position Sensor
WARNING: This page is about a different variant/trim than selected.
The PCM uses the Crankshaft Position (CKP) sensor to detect crankshaft speed and position. The CKP sensor is located behind the harmonic balancer. See Fig 1 . The CKP sensor connects to the PCM through the 12-volt reference circuit, the low reference circuit and CKP sensor 1 signal circuit. If PCM detects that the CKP sensor signal is incorrect for 3 seconds, a DTC will set. To diagnose DTC, see SELF-DIAGNOSTICS - 4.3L CHEVY EXPRESS & SAVANA article.