Electric Issues
Thread Starter
Pro
Joined: Jan 2006
Posts: 541
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From: Temecula CA
Electric Issues
I'm having some electric issues with my C5 lately, that I think might be related to the ignition switch, so I need a little help. I've read through the various threads on the ground problems, and no one ground seems to match up to the problems I'm having so I wanted to get some additional info before I start to tackle cleaning them. Recently, I having intermittent problems with, the drivers side door lock, HUD, radio, memory seat and telescoping steering wheel not working at startup.. Sometimes when I start the car up one of more of these items will not work. If I turn the car off, remove the key and restart they will then work fine, so I was wondering if it is possible that dirt in the ignition switch might be the culprit? Is it OK to spray contact cleaner into the ignition switch?
I have owned my C5 since it was new, and it has never been drive in snow or rain. It has spent it's entire life here in SoCal. Any thoughts?
Phil
I have owned my C5 since it was new, and it has never been drive in snow or rain. It has spent it's entire life here in SoCal. Any thoughts?
Phil
.
Joined: Apr 2013
Posts: 5,034
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From: Oregon
St. Jude Donor '14-'15-'16-'17-'18-'19-'20-'21-'22-'23
You need to pull your codes
1. Turn ON the ignition switch, with the engine OFF.
2. Press the RESET button to acknowledge any warning messages present.
3. Press the OPTIONS button on the Driver Information Center (DIC) and hold.
4. While holding the OPTIONS button press the FUEL button 4 times within a 5 second period.
5. System will first enter automatic display mode followed by the manual display mode.
1. Turn ON the ignition switch, with the engine OFF.
2. Press the RESET button to acknowledge any warning messages present.
3. Press the OPTIONS button on the Driver Information Center (DIC) and hold.
4. While holding the OPTIONS button press the FUEL button 4 times within a 5 second period.
5. System will first enter automatic display mode followed by the manual display mode.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
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From: Columbia SC
The ignition electrical switch is behind the mechanical cylinder portion you insert the key into. The only thing electrical in the key cylinder is the pickup for reading the key resistance. Spraying anything into the key cylinder will do nothing for the main electrical switch.
Thread Starter
Pro
Joined: Jan 2006
Posts: 541
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From: Temecula CA
OK, I pulled the codes, and man, was I shocked. There is a bunch, mostly communication problems. Here they are:
28-TCS C1221, C1222, C1248, C1287 C1288, U1000
58-SDM U1000, U1301, U1016
60-IPC U1016, U1064, U1040, U1088, U1176, U1056, U1160
A0-LDCM B2284, U1255, U1064, U1016, U1096
A1-RDCM B2285, U1255, U1064, U1016, U1096
A6-SCM B2860, U1160
B0-RFA U1255, U1064, U1016
I have a code chart and U1040 and U1056 do not appear on it. I have double checked twice and the codes are correct.
Have not had a single warning light on the instrument cluster from any of this.
Any ideas whats going on?
Phil
28-TCS C1221, C1222, C1248, C1287 C1288, U1000
58-SDM U1000, U1301, U1016
60-IPC U1016, U1064, U1040, U1088, U1176, U1056, U1160
A0-LDCM B2284, U1255, U1064, U1016, U1096
A1-RDCM B2285, U1255, U1064, U1016, U1096
A6-SCM B2860, U1160
B0-RFA U1255, U1064, U1016
I have a code chart and U1040 and U1056 do not appear on it. I have double checked twice and the codes are correct.
Have not had a single warning light on the instrument cluster from any of this.
Any ideas whats going on?
Phil
Drifting
Joined: Feb 2008
Posts: 1,596
Likes: 67
From: Bahama North Carolina
Could be the ignition switch but is your battery up to par? A lot of communication problems are linked to a weak battery. First thing to check. There are tests you can do to check the switch. If those TCS codes are current the system should disable abs, active handling, and traction control and notify you on the dic.
Racer
Joined: Feb 2004
Posts: 348
Likes: 6
From: Las vegas Nevada
Codes
Hi Phil, how temecula? I still have my home in Murrieta and I sure do miss it.
On the codes, note down if the code has a "C" Current, or an "H" History on them and repost.
You may have a serial bus issues that can be solved without servicing the Ignition switch.
If you have a Class 2 Serial Data Bus issue, the data wires that connect each module short or get corrupt be either damage or being wet, It can cause the IPC to go crazy and display erroneous messages and alerts.
The most common cause of the data buss issues are moisture but, if your carpets and the BCM are DRY,, you could have an electrical issue.
There are THREE COMMON modules that frequently contribute to this issue. They are the: Left Door Control Module (LDCM), Right Door Control Module (RDCM) and the Seat Control Module (SCM)..
To figure out if one of the THREE modules are causing the issue, you can preform an easy procedure!
So report your codes and include the C and H and the forum can help you.
...I'm a former member of COTV.
Steve
On the codes, note down if the code has a "C" Current, or an "H" History on them and repost.
You may have a serial bus issues that can be solved without servicing the Ignition switch.
If you have a Class 2 Serial Data Bus issue, the data wires that connect each module short or get corrupt be either damage or being wet, It can cause the IPC to go crazy and display erroneous messages and alerts.
The most common cause of the data buss issues are moisture but, if your carpets and the BCM are DRY,, you could have an electrical issue.
There are THREE COMMON modules that frequently contribute to this issue. They are the: Left Door Control Module (LDCM), Right Door Control Module (RDCM) and the Seat Control Module (SCM)..
To figure out if one of the THREE modules are causing the issue, you can preform an easy procedure!
So report your codes and include the C and H and the forum can help you.
...I'm a former member of COTV.
Steve
Thread Starter
Pro
Joined: Jan 2006
Posts: 541
Likes: 38
From: Temecula CA
Hi steve,
Temecula, is nice as usual. Weather this year has been switching from hot to cool and back to hot. Not sure where Solomon Island is, but if it is in Chesapeake Bay, it is probably very nice. Have friends in Ocean City and they have a nice boat. Could spend a lot of time exploring the bay.
OK, I'll go back through and look for the H or C. Didn't really notice them, but the codes were coming so fast, it was all I could do to write them down.
The carpets are dry. The left door lock has been intermittent for some time, so the LDCM could be the problem, I guess. But the other issues only recently started. Have never had a problem with the right door lock or window control, or seat controls, and have never had any type of warning notice notice in the info center.
Battery is less than a year old, but will test it.
Phil
Temecula, is nice as usual. Weather this year has been switching from hot to cool and back to hot. Not sure where Solomon Island is, but if it is in Chesapeake Bay, it is probably very nice. Have friends in Ocean City and they have a nice boat. Could spend a lot of time exploring the bay.
OK, I'll go back through and look for the H or C. Didn't really notice them, but the codes were coming so fast, it was all I could do to write them down.
The carpets are dry. The left door lock has been intermittent for some time, so the LDCM could be the problem, I guess. But the other issues only recently started. Have never had a problem with the right door lock or window control, or seat controls, and have never had any type of warning notice notice in the info center.
Battery is less than a year old, but will test it.
Phil
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Instructor
Joined: Jun 2008
Posts: 164
Likes: 0
From: Groton MA
Are you sure it's not grounds? I was getting multiple random codes, some related to communication, that could be reset and not return. I cleaned and reattached the ground connectors under the hood and, after 15-20 drives, haven't seen another code.
Thread Starter
Pro
Joined: Jan 2006
Posts: 541
Likes: 38
From: Temecula CA
Checked the battery voltage this morning it is 12.61v
Cleared all of the codes and drove the car for about 15 min. Got the following codes:
B0-RFA U1000H, U1064H
When I started the car, the telescoping steering wheel would not automatically come out, could not turn on the headlights, the daytime lights on the gauges weren't on, and the drivers side power door lock wouldn't work. Turned the car off and restarted, and everything worked except for telescopic steering wheel would not automatically come out. It will work, however if the memory button is pushed. Tried it with my wife's key and remote. Seat moves to correctly location but the steering wheel does not come out, unless the memory button is pushed.
Since these issues are intermittent, I'm thinking this is probably a ground issue, possibly G201 or Splice Pack SP201. Guess I'll get busy cleaning grounds.
Any other thoughts?
Phil
Cleared all of the codes and drove the car for about 15 min. Got the following codes:
B0-RFA U1000H, U1064H
When I started the car, the telescoping steering wheel would not automatically come out, could not turn on the headlights, the daytime lights on the gauges weren't on, and the drivers side power door lock wouldn't work. Turned the car off and restarted, and everything worked except for telescopic steering wheel would not automatically come out. It will work, however if the memory button is pushed. Tried it with my wife's key and remote. Seat moves to correctly location but the steering wheel does not come out, unless the memory button is pushed.
Since these issues are intermittent, I'm thinking this is probably a ground issue, possibly G201 or Splice Pack SP201. Guess I'll get busy cleaning grounds.
Any other thoughts?
Phil