How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask ASE Master Guru Your Own Question
ASE Master Guru
ASE Master Guru, ASE Master Tech
Category: Oldsmobile
Satisfied Customers: 208
Experience:  ASE certified tech with GM factory training
65777661
Type Your Oldsmobile Question Here...
ASE Master Guru is online now
A new question is answered every 9 seconds

1994 olds cutlass supreme: fuse box..shifted..neutral..ignition switch

Customer Question

i have a 1994 olds cutlass supreme and it wont start...... when you turn the key there is nothing...... brand new battery and starter..... i have tried the following: checked all fuses... all ok, checked power to each fuse box..... all have power, shifted car into neutral... wont start, jumpered a wire off of the ignition switch (prong with the wire to the starter) to the starter..... starter turned but the car will not run....... what else could it be
Submitted: 4 years ago.
Category: Oldsmobile
Expert:  ASE Master Guru replied 4 years ago.

ASE Master Guru :

Hello, my name is Chris. Most likely you have a theft deterrent system that is malfunctioning. Your key has a small resistor built into it that the ignition lock cylinder "reads" before allowing vehicle to start. these cars are known for the small wires that run to ignition cylinder to break thus resulting in a no start condition

ASE Master Guru :

Here is a schematic to help you better understand what it is I am referring to.

Full Size Image

JACUSTOMER-rlibb032- :

how do i get to those wires to see if that is my issue..... i have the steering column torn apart but the part with the lock cylinder is enclosed with plastic all the way around it

ASE Master Guru :

Here is the remainder of ignition system diagram.

Full Size Image

ASE Master Guru :

at the base of steering column, locate the 2 wires from ignition cylinder ppl/white and white/black. measure resistance with key in ignition and with key out. If no change in reading suspect broken wires. They usually break real close to ignition cylinder and are unrepairable, requiring new ignition cylinder

JACUSTOMER-rlibb032- :

ok..... is there any way to bi-pass that system ?

JACUSTOMER-rlibb032- :

the symptom that i had before the car wouldnt start is that i would turn the key and nothing would happen so i would turn it again and then it would start... i originally suspected starter soleniod so i replaced the starter......

JACUSTOMER-rlibb032- :

it was just weird because the car started and ran monday night and then tuesday morning i come outside and there is nothing.....

JACUSTOMER-rlibb032- :
the symptom that i had before the car wouldnt start is that i would turn the key and nothing would happen so i would turn it again and then it would start... i originally suspected starter soleniod so i replaced the starter......
ASE Master Guru :

If you can find out what the resitance pellet in your key is rated at it would be possible to fake out theft deterrent module by permanently installing properly rated resistor in between the ignition cylinder circuits.

ASE Master Guru :

the wire was probaly makeing intermittent contact and then broke all the way

ASE Master Guru :

Any gm dealer should be able to read your key and tell you what resistance it has

ASE Master Guru :

but you first need to verify that this is your problem

JACUSTOMER-rlibb032- :

ok....... based on everything that i have already tried, i have pretty much ruled out everything except for this

ASE Master Guru :

after looking at diagram, there isn't much left, but I still like to confirm diagnosis before component replacement.

JACUSTOMER-rlibb032- :

tomorrow i will check the resistance in those wires you listed and see what kind of readings i get and do a little bit of investigating

ASE Master Guru :

sounds good, good luck

JACUSTOMER-rlibb032- :

thank you sir! i appreciate it

ASE Master Guru :

Please remember to click "Accept" before leaving.

Related Oldsmobile Questions