Component Tests and General Diagnostics
CRANKSHAFT POSITION (CKP) SENSOR INSPECTIONNOTE: 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. (See PCM REMOVAL/INSTALLATION.)
2. Inspect the following wiring harnesses for open or short circuit. (Continuity check).
Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the wiring 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, there is a short circuit. Repair or replace the wiring 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.