I had a lot of codes so I decided to clear then all. All will clear except the codes below.

Any ideas why? The seats work just fine. Well except the passenger side seat, it’s not plugged in. But the driver’s side works just fine. I checked the wires that go through the door accordion thing and they looked fine. Any ideas?

A0-LDCM - Left Door Control Module

B2262H Horizontal Position Sensor Fit
B2264H Vertical Position Sensor Fault

A1-RDCM - Right Door Control Module

B2263H Horizontal Position Sensor Fit
B2265H Horizontal Position Sensor Fault

A6-SCM - Seat Control Module - No Comm

 

You seem to have alot of history codes. I would clear them see what comes back. It all may be due to your right seat being unplugged

 

Check your FUSES for those modules and actually check to see if those fuses have battery power by metering the test slots on top of the fuses.

If all is good,, pop out the rubber accordion tube and check the connectors for both doors and see if the famels pins are spread apart/ burnt or bent

BC

 

I checked the fuses for the DCMs and they were both good and current was present. Not a lot but between 3-5v. I actually checked every fuse and only the cig. lighter fuse was shot.
I also checked the wires in the door accordion thing (which is not as simple as it sounds) and they looked good as well.

When checking the codes again, these two popped up. So I cleared them.

40-BCM -Body Control Module
B2587 Column Lock/Unlock Drive (A)
B2592 Column Lock/Unlock Drive (B)

 

3-5 VDC... Know friggen wonder your having problems!

Which fuses are you reading LOW voltage on???????????????/

IF,,,,,,,,, its ignition switch supplied,,,,, the IgNITION SWITCH needs repair OR replaced.

BC

 

Basically what I did was pull the DCM fuses (both are 10) then attached the multimeter to where the fuse was. One was reading around 2-3 and the other was a little higher around 4-5ish

 

You have a problem with the ignition switch. Its not out putting the correct voltages. The contacts are burnt.

Heres a post that you need to read:


- C5 ignition Switch repair - http://forums.corvetteforum.com/c5-t...ch-repair.html

 

10 amp fuses Bill.
OP, that's not the correct way to measure those voltages.
Leave the fuse in, pull it up a bit so you can probe the leads.

Ron

 

Do I pull up on the fuse and test it while its half in? Is that what I pull up and test? Sorry im a rookie at this stuff.

 

On the TOP of each fuse are TWO small slots. Those are connected to each of the fuse legs.

Check each one to chassis ground. You should see full battery voltage on each test point.

Some fuses are only powered when the ingition is ON.

Bill

 

So on both DCM fuses they are getting...

12.35 ign on
12.6 ign off

 

See if you can move the mirrors electronically thru all its range of motion. Do it several times and see if the position DTCs clear.

Make sure that your seat connector is not damaged or has any broken wires Does it have proper power and functions for all the motors and lumbar???

The voltages on those fuses look good.

BC

 

I was hoping it would be as simple as the ignition switch. I moved all mirrors and the driver’s side seat in all directions as far as they could go and the DCM codes are still their. I did not do the passenger side seat because it’s not plugged in. Actually the seat is a powered seat but I can’t find the wires to plug it into the car. Don’t know what’s going on with that. The dealer said they replaced both seats. So maybe they put a powered seat in when it should have been manual?
I think I have some electrical bugs. In addition to the DCM codes, the following codes now appear. The car has not moved. Just turned the ignition on and off a number of times while testing everything.

Any idea what this plug is for? It’s pretty corroded as you can see. But would that cause issues if it’s not plugged into anything? Is this where the seat plugs in? I don’t see how because they won’t reach and are different types.

http://i32.photobucket.com/albums/d3...pyc21/Pic1.jpg

New Codes:

40-BCM -Body Control Module

B0432H Rear Defogger Relay Circuit
B2583H LF Turn Signal Monitor Circuit (Short to Voltage)

B0-RFA - Remote Function Actuation
U1160H Loss of Communications with LDCM
U1016H Loss of Communication with PCM
U1064H Loss of Communication with BCM
U1096H Loss of Communication with IPC

I think I am going to replace my battery. I’m getting reading all over the place with it.
This morning the it was around 12.7?, while driving it was up around 14.1, when I returned from my drive and turned the car off it was 13.13. Then a few hours later (after playing round with the seats and mirrors) it was down to 12.77. I’ll check it again in the AM

Thanks everyone for your help so far.

 

Your battery is fine. Voltage readigs are normal

The SCM being unplugged is causing the position sensor codes. The seat harness connector comes out of a slit in the carpet under the seat. Feel around that slip and look for the connector.

That connector could be for the Rear CD Changer power cord. Thats where its located. There should be another smaller square one tapped to the harness.

BC

 

I've had the entire seat out and removed the carpet and still can't find the wire to connect to the power seat.

Any idea on all the other codes?

 

Yep,, You most likely didn't have the power seat option. The passengers seat is not serial buss connected. You can just apply power and ground to the seat and you will have a movable seat.

Just make sure that you connect it to the correct circuit in the passengers foot well fuse box. It connects to an automaticly resettable circuit breaker.

Bill

 

I'm going to work on getting power to the seat but I'm not going to worry about that until I figure out why I'm getting all these codes.