I'm having major problems on my 04 message board. Here is what is flashing when I drive. Shocks Inoperative/ Service ride control/ Max Speed 80 MPH/ and Service Vehicle Soon. Here are the codes it's giving
38-RTD No Comm/ 60-IPC B0516 H/ 99-HVAC B0361 H/ A6-SCM B2860 H
B0-RFA C2110 H/ and P1631 H. and at times Traction Control.
I know what the C and H stand for behind the codes, and I have reset them numerous times but they keep coming back. Also I do NOT have the ride control selector. I turn the active handeling off when I drive it to keep it from locking the brakes up. Please Help this is driving me crazy.

 

Resetting codes without fixing the problems driving the codes will not work. Are you saying you do not have the F55 option on the car? Traction control could be activated because you have the wrong size tires on the car. The symptom of applying the brakes while driving is indicative of incorrect tire diameters. P1631 is a theft deterrent code. Have you had the BCM replaced recently? If so the password was not relearned by the new BCM.

The HVAC codes indicate you need to resynch the air temp actuators. The seat control module code indicates you have a short or open in the telescopic steering wheel sensor or in the seat control module or memory. The IPC code indicates you have been driving over 200 mph or there is a problem with the vehicle speed sensor signal being transmitted from the PCM.

This is a weird set of problems but one thing that is common to most of them is the BCM. If it has been replaced the new unit has to be programmed with the options the car has. I highlighted the common points in bold below.

Body Control Module (BCM) Programming/RPO Configuration

The service BCMs EEPROM chip must be programmed with the proper RPO configurations by using a scan tool. The EEPROM stores information regarding the vehicle options and point of sale. If the BCM is not properly configured with the correct RPO codes, the BCM will set default values for some systems, which could cause malfunctions in other systems. When the BCM is replaced, the BCM must be programed to identify the following information:

• Country of Sale (US, Canada, Europe, Japan, etc.)
• Real Time Damping (RTD)
• Memory Options
• Front Fog Lamps
• HVAC (C60-Manual, CJ2-Automatic)
• Active Handling
• Auto Headlamp Control
• Power Tilt/Telescope Column

The BCM sends password information to the PCM on the serial data line to enable fuel for Vehicle Theft Deterrent (VTD) functions, therefore, the PCM must also be programmed to accept the new password sent by the BCM. The BCM programming procedure will enable the learn password mode for both the BCM and PCM. This mode allows the PCM to learn the new password sent by the BCM whenever the BCM or PCM is replaced. If the BCM and PCM are not properly programmed together, the vehicle will exhibit a no start condition and the PCM will store a DTC P1631.

One other thing you can do easily is perform a standard voltage and ground check. Check the grounds to see if there is a problem with them or any of the other wiring or connectors in the circuits. Check the grounds at the base of the A pillars and on the frame under the battery. Also check the battery and its voltage and ground connections.

Bill