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Enes
Enes, VOLVO Master Technician
Category: Volvo
Satisfied Customers: 4911
Experience:  18+YEARS WITH VOLVO AS THE MASTER VOLVO MECHANIC&Ase
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I have a 2004 volvo c70,how can I test the cam sensor

Customer Question

I have a 2004 volvo c70,how can I test the cam sensor
Submitted: 1 year ago.
Category: Volvo
Expert:  SARMIENTO22556 replied 1 year ago.

Hello, I will try my best to help you with your concern.

First what problem are you experiencing?

Is your check engine light on? what codes are you getting?

please give me any information on recent repairs, things you've done to try and fix the issue etc,

I am not standing in front of your vehicle. My educated guess can only be any good if I have all the information you can provide for me.

Thanks

Customer: replied 1 year ago.
I just put a motor in car cranked rite up but engine light is on code is ecm 3000 says intake cam sensor I have checked no 12 volts to sensor and no ground
Expert:  SARMIENTO22556 replied 1 year ago.

so I am sure I am looking at the right wiring diagram, can you please give me the color of the wires at the camshaft sensor?

You will need power and ground to make the sensor work, if you have none of these you need to back track the wires back to the pcm and see where the fault my lie.

Customer: replied 1 year ago.
Red blue,brown for about one foot then a connector then changes to a blue and yellow,a red and yellow, and a brown that goes on to ecm
Expert:  SARMIENTO22556 replied 1 year ago.

the one that I am looking at only has three wires: blue/yellow. brown/gray and yellow/red

is that the correct one?

Customer: replied 1 year ago.
that's it
Expert:  SARMIENTO22556 replied 1 year ago.

ok hold on let me look at the schematic

Expert:  SARMIENTO22556 replied 1 year ago.

at the pcm check the signals coming out of the pcm.

blue/yellow position A65

Brown/gray position A47

yellow/red position A29

let me know what you are getting there

Customer: replied 1 year ago.
Ok how do I find a list of positions
Expert:  SARMIENTO22556 replied 1 year ago.

I can't seem to locate a picture of the pin out locations, but if you go to the pcm and look at the connector and cout positions you should be able to find the color wires there

Customer: replied 1 year ago.
Ok thanks
Expert:  SARMIENTO22556 replied 1 year ago.

yes just let me know what you find

Customer: replied 1 year ago.
Ok I am getting ground and the other to shows 5 volts checked wires all the way they are good so installed a 2nd ecm still gives same voltage and shows code the car runs good but real hard to start if it would just start good I could live with