Crankshaft Position Sensor
WARNING: This page is about a different car, the 1995 Cadillac Seville and 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
A malfunction in the crankshaft position sensor circuit will set a related diagnostic trouble code. For testing procedures, see appropriate TESTS W/CODES article in this section below.
- TESTS W/CODES - 4.6L (for Concours)
- TESTS W/CODES - 4.6L (for Seville)
To diagnose position crankshaft sensor, the following procedures can be used:
- If a scan tester is available, scan RPM parameter while cranking engine. If RPM is indicated, crankshaft position sensor is operating properly.
- If scan tester is not available, disconnect crankshaft position sensor harness connector. Set ohmmeter to 2-k/ohm position, and measure resistance across sensor terminals. Resistance should be 800-1200 ohms.
- Set voltmeter on the 2-volt AC scale. Crank engine and measure output voltage across sensor terminals. Voltmeter reading should be .8-1.4 volts. If resistance reading is not as specified or sensor does not produce the specified output voltage reading, repair faulty wiring or faulty crankshaft position sensor.