Component Tests and General Diagnostics

CRANKSHAFT POSITION (CKP) SENSOR INSPECTION

NOTE: Perform the following inspection only when directed.

Resistance Inspection

1. Disconnect the CKP sensor connector.
2. Measure the resistance between CKP sensor terminals A and B using an ohmmeter.
- If not as specified, replace the CKP sensor.
- If CKP sensor resistance is okay, but RPM PID value is out of specification, perform the "Circuit Open/Short Inspection".

Specification: 400 - 550 ohms

Circuit Open/Short Inspection

1. Disconnect the PCM connector.




2. Inspect the following wiring harnesses for open or short. (Continuity check)

Open circuit

- If there is no continuity, the circuit is open. Repair or replace the harness.
- CKP sensor terminal A (harness-side) and PCM terminal 2D (harness-side)
- CKP sensor terminal B (harness-side) and PCM terminal 2G (harness-side)

Short circuit

- If there is continuity, the circuit is shorted. Repair or replace the harness.
- CKP sensor terminal A (harness-side) and power supply
- CKP sensor terminal A (harness-side) and body GND
- CKP sensor terminal B (harness-side) and power supply
- CKP sensor terminal B (harness-side) and body GND