.
My odometer has quit working
Thread Starter
Pro
Joined: Feb 2006
Posts: 543
Likes: 0
From: Orlando Fl
My odometer has quit working
I happened to notice the other day that my odometer has stopped functioning the trip meters still work, and everything else that would be mileage based in the DIC still works but the odometer just stays at it's existing mileage. Any ideas?
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
The diagnostics in the Shop Manual are rather long winded
To put it in a nutshell:
Measure the voltage from the vehicle speed sensor to ground (9.6v)
Test the VSS circuit for a short or high resistance between the Instrument Panel Cluster (IPC) and the PCM
Inspect for poor connectors at the harness connector on the IPC and then at the PCM
If all that fails its an IPC change.
Best of luck
To put it in a nutshell:
Measure the voltage from the vehicle speed sensor to ground (9.6v)
Test the VSS circuit for a short or high resistance between the Instrument Panel Cluster (IPC) and the PCM
Inspect for poor connectors at the harness connector on the IPC and then at the PCM
If all that fails its an IPC change.
Best of luck
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
The diagnostics in the Shop Manual are rather long winded
To put it in a nutshell:
Measure the voltage from the vehicle speed sensor to ground (9.6v)
Test the VSS circuit for a short or high resistance between the Instrument Panel Cluster (IPC) and the PCM
Inspect for poor connectors at the harness connector on the IPC and then at the PCM
If all that fails its an IPC change.
Best of luck
To put it in a nutshell:
Measure the voltage from the vehicle speed sensor to ground (9.6v)
Test the VSS circuit for a short or high resistance between the Instrument Panel Cluster (IPC) and the PCM
Inspect for poor connectors at the harness connector on the IPC and then at the PCM
If all that fails its an IPC change.
Best of luck
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
If your trip mileage is working, then the IPC is getting VSS data correctly as that data is used to update the mileage of the odometer and the trip odometers.
Sounds like your odometer function has quit working, and the IPC will need to be replaced. A dealership can replace the IPC, but even dealers cannot program the correct odometer reading into the new IPC. I'd recommend you contact directly a service center that can update the new IPC for you. Here's one that I know is VERY good ...
http://www.paspeedo.com/
I'd call them first and talk to them about the problem and what they can do .... possibly they can order the IPC from a forum supporting parts vendor (gmpartshouse, gmpartsdirect, etc.) have the IPC sent to them, and then after they program it, ship it to you. Notice on the HOME page for paspeedo thee is a link to a PDF form you will need to fill out/sign for them to re-program the odometer.
Sounds like your odometer function has quit working, and the IPC will need to be replaced. A dealership can replace the IPC, but even dealers cannot program the correct odometer reading into the new IPC. I'd recommend you contact directly a service center that can update the new IPC for you. Here's one that I know is VERY good ...
http://www.paspeedo.com/
I'd call them first and talk to them about the problem and what they can do .... possibly they can order the IPC from a forum supporting parts vendor (gmpartshouse, gmpartsdirect, etc.) have the IPC sent to them, and then after they program it, ship it to you. Notice on the HOME page for paspeedo thee is a link to a PDF form you will need to fill out/sign for them to re-program the odometer.
Thread Starter
Pro
Joined: Feb 2006
Posts: 543
Likes: 0
From: Orlando Fl
something else to consider I recently installed an Avic D3 ( I had to tap the VSS signal from the back of the cluster), I'm not positive it quit right after the install but I noticed it a few days afterwards.
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Thread Starter
Pro
Joined: Feb 2006
Posts: 543
Likes: 0
From: Orlando Fl
I noticed today that the car slow to crank, I took the battery to have it load tested and sure enough it had a dead cell. I replaced the battery and what do you know, the odometer begins to work again. Chalk another odd issue up to a bad battery.
My advice to those facing electrical gremlins with their C5 is to first check the battery.
My advice to those facing electrical gremlins with their C5 is to first check the battery.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
I noticed today that the car slow to crank, I took the battery to have it load tested and sure enough it had a dead cell. I replaced the battery and what do you know, the odometer begins to work again. Chalk another odd issue up to a bad battery.
My advice to those facing electrical gremlins with their C5 is to first check the battery.
My advice to those facing electrical gremlins with their C5 is to first check the battery.
Glad you found it
