Service active handling message
Le Mans Master
Joined: Sep 2014
Posts: 5,278
Likes: 539
From: Kelowna BC
Codes man, we need codes. Post all.
If unsure how, search or ask. Essentially hold options and press fuel 4 times with the key at on but car not running.
If unsure how, search or ask. Essentially hold options and press fuel 4 times with the key at on but car not running.
Last edited by grantv; May 6, 2018 at 07:25 PM.
Thread Starter
Drifting
Joined: Apr 2004
Posts: 1,888
Likes: 21
From: Olathe, Kansas
More than 2 dozen conditions can cause the DIC messages and turn on the the dash lights about ABS/TC/Active Handling.
As GrantV stated we need to know your codes to do anything but guess what the cause is.
If you have never pulled codes on your C5 here is how:
https://youtu.be/SviRjIsy9G4
Post ALL the codes including the H or C or HC that follow each 5 character code. List the codes under the sensor they show with. ie 10 - PCM or 28 - TCS or 40 - BCM ..... etc .....
If any sensor(s) has NO COMM next to them post that also.
The code(s) that are causing the message and dash lights should be under 28 - TCS. Someone here will help you understand the code meanings.
As GrantV stated we need to know your codes to do anything but guess what the cause is.
If you have never pulled codes on your C5 here is how:
https://youtu.be/SviRjIsy9G4
Post ALL the codes including the H or C or HC that follow each 5 character code. List the codes under the sensor they show with. ie 10 - PCM or 28 - TCS or 40 - BCM ..... etc .....
If any sensor(s) has NO COMM next to them post that also.
The code(s) that are causing the message and dash lights should be under 28 - TCS. Someone here will help you understand the code meanings.
Thread Starter
Drifting
Joined: Apr 2004
Posts: 1,888
Likes: 21
From: Olathe, Kansas
Codes pulled!
Pulled all codes, see list
TCS (1) C1278H
IPC (1) U1160H
AO-LDCM (3) B2282H, B2283H, B2284H
A1-RDCM (3) B2283H, B2285H, U1064H
Cleared codes. Drove car. No new codes.
Thanks for your help in advance!
Bill
TCS (1) C1278H
IPC (1) U1160H
AO-LDCM (3) B2282H, B2283H, B2284H
A1-RDCM (3) B2283H, B2285H, U1064H
Cleared codes. Drove car. No new codes.
Thanks for your help in advance!
Bill
Thread Starter
Drifting
Joined: Apr 2004
Posts: 1,888
Likes: 21
From: Olathe, Kansas
C1278 is TCS temporarily inhibited by PCM.
Next time you get the "Service AH" message in the DIC pull over as soon as possible and pull the codes BEFORE you shut off the engine. To pull codes with the engine running you need to use the RESET button to clear all messages displayed in the DIC and then pull codes as normal.
Looks like some transient event occurred and it disappeared when the engine was turned off. Not uncommon for such thing to occur so you need to try and catch the event as soon after it occurs as possible. Could be most anything but often Steering Wheel Position Sensors start failing and do not leave tracks in the early stages.
Post back when you have something more to report.
I would not be concerned with the LDCM or RDCM codes at this point unless they begin reappearing on a regular basis...... They occur most often when the battery is a little low or has been disconnected/reconnected.
Next time you get the "Service AH" message in the DIC pull over as soon as possible and pull the codes BEFORE you shut off the engine. To pull codes with the engine running you need to use the RESET button to clear all messages displayed in the DIC and then pull codes as normal.
Looks like some transient event occurred and it disappeared when the engine was turned off. Not uncommon for such thing to occur so you need to try and catch the event as soon after it occurs as possible. Could be most anything but often Steering Wheel Position Sensors start failing and do not leave tracks in the early stages.
Post back when you have something more to report.
I would not be concerned with the LDCM or RDCM codes at this point unless they begin reappearing on a regular basis...... They occur most often when the battery is a little low or has been disconnected/reconnected.
