Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION (CKP) SENSOR INSPECTIONInspection of Air Gap
NOTE: Perform the following test only when directed.
1. Measure the air gap between each four projections of the plate behind the crankshaft pulley and the CKP sensor using a feeler gauge.
- If not as specified, adjust the CKP 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 (See PLATE REMOVAL/ INSTALLATION [BP, BP WITH TC].) or CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [BP, BP WITH TC].)
- If CKP 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 CKP sensor connector.
Circuit Open/Short Inspection
Open circuit
- If there is no continuity, the circuit is open. Repair or replace the harness.
- CKP circuit (CKP sensor connector terminal B and PCM connector terminal 3Y.)
- Power circuit (CKP sensor connector terminal A and main relay terminal D through common connector.)
- GND circuit (CKP sensor connector terminal C and PCM connector terminal 4A through common connector.)
Short circuit
- If there is continuity, the circuit is shorted. Repair or replace the harness.
- CKP sensor connector terminal B and PCM connector terminal 3Y circuit through common connector to GND.
- CKP sensor connector terminal A and main relay terminal D through common connector to GND.