It's a cruel world...
Thats what I was gonna say! all joking aside that was a great reply
C5 odometer problems
Thread Starter
Instructor
Joined: Apr 2009
Posts: 242
Likes: 1
From: Pictou Nova Scotia
C5 odometer problems
Hi I just bought a 99 black FRC. I love it, but the odometer doesn't work. Is there anyway the previous owner could have disconnected it. I would like to hook it back up.
Melting Slicks
Joined: Apr 2009
Posts: 2,772
Likes: 3
From: Gastonia NC
St. Jude Donor '10
Just a thought but if you just bought it have you tried the trip button to the right of the stearing wheel. Not sure how much you have played with yet and not sure what's not working?
Melting Slicks
Joined: Apr 2009
Posts: 2,772
Likes: 3
From: Gastonia NC
St. Jude Donor '10
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Heres the troubleshooting guide
Hopefully its a bad connection at either the PCM or the IPC
1. Install a scan tool.
2. Raise the vehicle's drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
3. Start the engine.
4. Place the transmission into drive for automatic transmission and third gear for manual transmission.
5. With the scan tool, observe the Vehicle Speed parameter in the PCM Engine Data 1 data list.
Does the Vehicle Speed parameter match the speedometer display?
--
Go to Step 3
Go to Step 4
3
Does the odometer operate properly?
--
Go to Testing for Intermittent and Poor Connections in Wiring Systems
Go to Step 8
4
1. Turn the ignition OFF.
2. Disconnect the PCM connector C2.
3. Turn the ignition ON, with the engine OFF.
4. Measure the voltage from the vehicle speed signal circuit to a good ground.
Does the voltage measure greater than the specified value?
9.6 V
Go to Step 6
Go to Step 5
5
Test the vehicle speed signal circuit for an open, a short to ground, or a high resistance between the IPC and the PCM. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 10
Go to Step 7
6
Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 10
Go to Step 8
7
Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 10
Go to Step 9
8
Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement .
Did you complete the replacement?
--
Go to Step 10
--
9
Important
Program the replacement PCM.
Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement in Engine Controls.
Did you complete the replacement?
--
Go to Step 10
--
10
Operate the system in order to verify the repair.
Use the scan tool in order to clear the DTC's that may have set in other modules during diagnosis.
Did you correct the condition?
--
System OK
Go to Step 2
Hopefully its a bad connection at either the PCM or the IPC
1. Install a scan tool.
2. Raise the vehicle's drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
3. Start the engine.
4. Place the transmission into drive for automatic transmission and third gear for manual transmission.
5. With the scan tool, observe the Vehicle Speed parameter in the PCM Engine Data 1 data list.
Does the Vehicle Speed parameter match the speedometer display?
--
Go to Step 3
Go to Step 4
3
Does the odometer operate properly?
--
Go to Testing for Intermittent and Poor Connections in Wiring Systems
Go to Step 8
4
1. Turn the ignition OFF.
2. Disconnect the PCM connector C2.
3. Turn the ignition ON, with the engine OFF.
4. Measure the voltage from the vehicle speed signal circuit to a good ground.
Does the voltage measure greater than the specified value?
9.6 V
Go to Step 6
Go to Step 5
5
Test the vehicle speed signal circuit for an open, a short to ground, or a high resistance between the IPC and the PCM. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 10
Go to Step 7
6
Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 10
Go to Step 8
7
Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 10
Go to Step 9
8
Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement .
Did you complete the replacement?
--
Go to Step 10
--
9
Important
Program the replacement PCM.
Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement in Engine Controls.
Did you complete the replacement?
--
Go to Step 10
--
10
Operate the system in order to verify the repair.
Use the scan tool in order to clear the DTC's that may have set in other modules during diagnosis.
Did you correct the condition?
--
System OK
Go to Step 2
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