Protege LX L4-1.6L DOHC (2000)
Crankshaft Position Sensor: Testing and Inspection
Inspection of Resistance
1. Disconnect the CKP sensor connector.
2. Measure the resistance between CKP sensor terminals A and B using an ohmmeter.
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If not as specified, replace the CKP sensor.
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If CKP sensor resistance is okay, but PID value or PCM terminal 21 and 22 voltage are out of specification, carry out the "Circuit Open/Short
Inspection".
Specification: Approx. 550 Ohms
Circuit Open/Short Inspection
1. Remove the PCM.
2. Connect the SST (104 Pin Breakout Box) to the PCM as shown.
3. Tighten the connector attaching screw.
Tightening torque:
7.9 - 10.7 N.m {80 - 110 kgf.cm, 69.5 - 95.4 in.lbf}
4. Inspect for an open or short circuit in the following wiring harnesses by probing the applicable sensor and SST (104 Pin Breakout Box) terminals
with ohmmeter leads.
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If there is an open or short circuit, repair or replace wiring harnesses.
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If there is no open or short circuit, replace the CKP sensor.
Open circuit
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CKP signal (+) circuit (CKP sensor connector terminal A and PCM connector terminal 21)
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CKP signal (-) circuit (CKP sensor connector terminal B and PCM connector terminal 22)
Short circuit
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CKP signal (+) circuit (CKP sensor connector terminal A and PCM connector 21 to GND)
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CKP signal (-) circuit (CKP sensor connector terminal B and PCM connector terminal 22)