Oldsmobile Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** to see what voltage is on pink wire going to ignition module while trying to start. Let me know, thanks.
It should be closer to 11. What is battery voltage while trying to start?
Try to jump start vehicle, let me know if that makes a difference. Thanks.
Did you check ground? Also clean ground strap mounting points on coil housing. Let me know, thanks.
Disconnect the ignition module and check for 500-900 ohms resistance between the Purple and Yellow wires. Check for 500 millivolts (mV) AC output or more at a fast cranking speed. Let me know, thanks.
They both put out voltage so you need to put one lead on purple wire and other lead on yellow wire to monitor ac voltage while cranking.
The purple and yellow wires connect to pins 27 and 28 of PCM, sorry about confusion. Let me know, thanks.
Below the left side of the I/P near the steering column, here is a pic.
You can do test with it unplugged.
https://www.dropbox.com/s/riem7da2x37j0pq/2c.pdf?dl=0 There is diagram, let me know. Thanks.
It shows pin 17, so you need to count over 10 pins from 17. Let me know if you get it, thanks.
Replace crank sensor, the cranking ac voltage is way too low. Let me know how it goes, thanks.
Yes, it will be fine. Let me know how it goes, thanks.
I'm going to open question up to see if someone else has some idea. I'd consider double checking grounds or running new ground to ignition module. Someone will reply when they can help, thanks.
Do you still require assistance?
Do you want to consider bypassing it so it does not do that again?
The key does not have a chip in it, that’s the issue. The security system uses a sensor in the ignition cylinder to sense the rotation of the key along with the change in power feeds in the ignition switch so the key is only a key.
I am not sure how that can be. As I said it’s the pass lock system. Often its just a bad connection to the pass lock sensor in the ignition cylinder.
If you want to bypass that sensor, just reply and let me know what you want to and I can assist you with that.
Absolutely. Have a great day. No need to reply in the mean time.