Hello, I have a 1994 Cadillac Eldorado and I am getting a P041 error code. I think this a cam shaft sensor error. I need to know where the sensor is on my car. Any diagram or video of the replacement of this sensor will be greatly appreciated. My car has about 63000 miles 😪
This should help.
https://www.cadillacforums.com/threads/no-cam-reference-signal-from-ignition-control-module.64738/
diagnostics.
TESTS W/CODES - 4.6L -1994 Cadillac Eldorado
CODE P041, NO CAM REFRNCE SENS SGNL FROM IGN CNTRL MODULE
Checks for CAM reference pulses not received when 4X reference pulses are being received. This indicates a cam sensor circuit failure and Code P041 will set.
Test Conditions
Code P012 not set, 4X reference pulses being received and RPM 1600
or less.
Failure Conditions
PCM receives no cam sensor pulses for 5.3 seconds.
Action
PCM turns on MIL.
1.Checks if Code P035 is set because a REF LO problem can cause other ignition problems.
2.Checks resistance of camshaft position sensor. Resistance should be 200-900 ohms. If resistance is greater, check for an open circuit. If resistance is less, check for a short.
3.Checks if circuits No. 632 or 633 is shorted to ground.
4.Checks if sensor is able to produce a DC voltage greater than 0.2 volt. If it can, sensor is okay.
5.A reading of 4 Hertz with engine running means that ignition control module is producing cam pulses.
6.Checks if circuit is at fault or if ICM is faulty.
Camshaft Position Sensor Test
https://axleaddict.com/auto-repair/Camshaft-Position-Sensor-Test
