Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Crankshaft Position Sensor: Testing and Inspection

Inspection of Air Gap

NOTE: Perform the following test only when directed.




Measure the air gap between each four projections of the plate behind the crankshaft pulley and the crankshaft position sensor using a feeler gauge.
- If not as specified, adjust the crankshaft position sensor air gap and inspect as follows:
Is any of the four projections of the plate behind the crankshaft pulley twisted or bent.
If not adjusted, replace the plate behind the crankshaft pulley crankshaft position sensor.
If crankshaft position sensor PID value is out of specification, perform the "Circuit Open/Short Inspection".

Specification: 0.5 - 1.5 mm {0.020 - 0.059 in.}

2. Reconnect the crankshaft position sensor connector.

Circuit Open/Short Inspection

Open circuit
If there is no continuity, the circuit is open. Repair or replace the harness.
- Crankshaft position circuit (Crankshaft position sensor connector terminal B and PCM connector terminal 2J.)




- Power circuit (Crankshaft position sensor connector terminal A and main relay terminal D through common connector.)




- Ground circuit (Crankshaft position sensor connector terminal C and PCM connector terminal 3C through common connector.)

Short circuit
If there is continuity, the circuit is shorted. Repair or replace the harness.
- Crankshaft position sensor connector terminal B and PCM connector terminal 2J circuit through common connector to ground.
- Crankshaft position sensor connector terminal A and main relay terminal D through common connector to ground.