On my 1998 Convertible - Just received car back from shop after a long period of non-use. Battery was replaced along with BCM and steering wheel lock-out modification (LMC5) to name a few. Repair shop states that one of the FOBs worked, the other did not, the morning of pick-up but upon arrival neither FOB worked. The DIC will not enter the FOB Training mode. No problem navigating to the screen that says FOB Training but nothing happens when performing the next step, pressing Reset. I have disconnected the battery for a few minutes thinking that the system just needed to reset but no joy. What are the most likely causes of this problem? Help please. dofdear

 

Have you checked to make sure the batteries in the FOBs are good? Not sure if that might help, but worth a try.

 

Moved to C5 Tech.

 

Yes, batteries are fresh and it should not make any difference to the DIC. Should switch into training mode with or without FOBs present. doifdear

 

TTT - Please offer some suggestions on where to start. Thanks, dofdear

 

For a 1998, try to sync the FOB first before attempting to match/train the fob's, post up results.

 

Thanks 69,

I have 3 FOBs and all fresh FOB batteries. The car has a new battery and is fully charged. I have no cell phone or other WIFI / Bluetooth device nearby to cause any interference. The SECURITY lamp flashes on the DIC when the door is open.
I am familiar with the procedure you sent. The "Resynchronizing Your Transmitter " through step 3 is a non-starter on all FOBs and does not work.
As I said in the original post, the DIC will not go beyond the FOB TRAINING screen outlined in step 4. In other words when FOB TRAINING is displayed and pressing RESET once does not display the message HOLD LK + UNLK 1ST FOB. It just doesn't enter the training mode.

So what are the next steps in resolving this problem? Thanks in advance for the help. dofdear

 

Next step, review the DIC for fault codes, write them down for posting to this thread as the car sits now...After recording/documenting all DIC codes, clear all codes.
Take the car out for a 15 min drive, review and record/document all DIC codes again for posting to this thread.
To Summarize,
Post> Pre-Drive DIC Codes.
Clear Codes
Post >Post Drive Codes.

Goose

 

Goose,
Okay. All codes were HISTORY except 1 time the HVAC code B0367 H C. It cleared but then the B0367 H came back, would clear and then come back. Here is a list of all codes:
PCM: P0650
TCS: C1255
BCM B0432 / B0502 / B2482
HVAC: B0367 H C (C cleared but H clears and comes back)
LDCM: B2252 / B2282 / B2284 / B2264 /U1255 /U1064 / U1016 / U1096
RDCM: B2253 / B2283 / B2285 / B2265 /U1255 /U1064 / U1016 / U1096
RFA: NO COMM.
So again the only active code is the HVAC B0367 H code that will no clear, and the RFA: No COMM

Going for a drive now. Thanks, dofdear

 

OK before looking into the DIC, I discovered a difference (turn off radio) in the fob programming instructions of the owners manual vs. the service manual, follow the below procedure exactly with the additional step in red of turning off radio. Post up results

Step 1

Insert the key into the ignition and turn it to the “Run” position. Turn off power to the radio.

Step 2

Press the “Reset” button on the driver information center to clear any warning lights. Press the “Options” button until a blank message appears on the DIC screen.

Step 3

Press and hold “Reset” on the 3 seconds. Press the "Options" button until "Fob Training" is displayed on the DIC screen.

Step 4

Push the “Reset” button. This will bring up the message “HOLD LK + UNLK 1ST FOB” on the DIC screen.

Step 5

Hold down “Lock” and “Unlock” on the remote at the same time for 13 seconds.

Watch the DIC, as it will read “Fob Learned” when the programming is accepted for that remote. Repeat "Step 8" to program a second Fob, if desired.

 

Goose,
All codes in car cleared, even the HVAC B0367 H code. There was a HVAC :B0446 H C code but it cleared. The RFA: NO COMM. is still there. The DIC will still not go into the “HOLD LK + UNLK 1ST FOB” on the DIC screen.

Any other ideas? dofdear

 

RFA no comm I believe would be your clue on where to look.

The RFA is located in the rear hatch area, drivers side.

 

The RFA: NO COMM is your issue...and since you had the BCM replaced, there maybe RFA/DCM/BCM pairing issue.... see below info.

Keyless Entry System Description Remote Function Actuation (RFA) System The Remote Function Actuation (RFA) system performs the following functions: The RFA system consists of a transmitter located on the operator's key fob, and a receiver (with an integral antenna) located over the LR wheelhouse. The receiver is capable of recognizing three transmitter codes. The RFA system does not directly control its functions, but relies on other systems in order to perform the transmitter's commands. The receiver receives and transmits various information from the following systems in order to perform specific functions. When the RFA system receives a command from a transmitter, a message is sent via the serial data line to the system module capable of performing the needed function.
The RFA system is intended to be used as a supplementary to the vehicles conventionally operated lock/unlock system. It is not intended to replace, but should be used in conjunction with the door lock key. The system could disable due to radio frequency interference or a low transmitter battery. Therefore, always maintain vehicle access with a door key RFA System Functions The RFA system consists of the following major components:
• Transmitter remote control of various vehicle systems without physical contact of any switches on the vehicle
- Lock and unlock the both doors
- Turn the panic alarm ON or OFF
- Arm or disarm the theft deterrent system
- Hatch or trunk release
- Vehicle lamp control (approach, courtesy)
- Activate memory features (with memory option only)
• Tire Pressure Monitoring (TPM) system functions. Refer to Tire Pressure Monitor System Description .
• The Body Control Module (BCM) -- in order to provide Theft Deterrent, hatch release, horn, and vehicle illumination control features.
• The Door Control Modules (DCM) -- in order to provide all door lock and memory mirror functions.
• The Seat Control Module (SCM) -- in order to provide memory seat features.
• The Instrument Panel Cluster (IPC) -- in order to provide RFA system programming, display and vehicle personalization functions
• A low power signal transmitter
• A receiver with integrated antenna

The RFA system allows the user to manually or passively lock or unlock the vehicle through a transmitter located on the user's key chain. The RFA transmitter is a battery powered, water resistant, radio frequency signal generator. The RFA transmitter consists of four manual buttons and a passive slider switch. The operation of the manual and passive features is described below:
Manual Features When the transmitter manual UNLOCK button is pressed once, the transmitter sends an identification code to the receiver to unlock the driver door. The receiver sends the message to the driver DCM on the serial data line to unlock the driver door. The DCM will then unlock the driver door. The BCM also responds to this message and disarms the theft deterrent system. The BCM will also activate the courtesy lamps if the ambient light is low. If the UNLOCK button is pressed again within 10 seconds, the receiver sends a second message to the passenger DCM to unlock the passenger door. The DCM then unlocks the passenger door.
When the transmitter manual LOCK button is pressed, the transmitter sends an identification code to the receiver to lock both doors. The receiver sends the message to both of the DCMs on the serial data line to lock both doors. Both DCM will then lock both doors. The BCM also responds to this message and arms the theft deterrent system.
When the manual HATCH button is pressed, the transmitter sends an identification code to the receiver to release the hatch or trunk. The receiver sends the message through the serial data line to the BCM. The BCM then disarms the theft deterrent system and activates the hatch or trunk release relay, and the hatch or trunk opens.
When the manual PANIC button is pressed, the transmitter sends an identification code to the receiver to activate the panic mode. The receiver sends the message through the serial data line to the BCM. The BCM activates the horn relay or flashes the lamps (depending on selected personalized options) for 90 seconds or until the panic button is pressed again. Passive Features The passive locking and unlocking system operates the same as the manual system except that the • Door UNLOCK Button -- with a programmed transmitter in range, unlocks the driver and passenger doors, disarms the theft deterrent system, activates illumination and memory features. • Door LOCK Button -- with a programmed transmitter in range, locks the driver and passenger doors, arms the theft deterrent system. • HATCH Button -- with a programmed transmitter in range/trans in park (Auto trans) parking brake applied (manual trans), releases the hatch or trunk, disarms the theft deterrent system. • PANIC Button -- with a programmed transmitter in range (key out of the ignition), activates the horns when pressed.

Troubleshooting procedure for a 1998 model year.

 

It sounds like the Stealer didn't totally pair/download everything into the new BCM. I'm wondering if the OPs TPMS is working?

 

to Grinder11 and Goose,
No TPMS or FOB is working. The BCM was not installed at a dealership but through a shop. They also installed the LMC5 modification. My plan is on Monday to take the car back to the shop and have them recheck their work and ensure all the correct software and pairing is accomplished. After that it's old fashion troubleshooting of wires and components. Good luck to me.

 

Thanks for to update on NO TPMS.
Can you please advise on the following, as this will help get your car sorted out?

1. What was the reason/issue for the BCM replacement, please be as specific as possible as this will help in further troubleshooting recommendations?
2. Regarding the replacement/installed BCM, where did it come from? was it a brand new service replacement unit, or a used unit.?

Next post will outlined the BCM replacement procedures for your chat with your repair shop.

Goose

 

Body Control Module Replacement

BCM Install>

1. Turn OFF the ignition switch.

2. Connect the harness connectors to the BCM.

3. Position the BCMs upper mounting tabs into the slots in the bracket.

4. Push the lower mounting tab into the bracket and snap the BCM into place.

5. Install the front floor kick-up panel (RH). Refer to Kick-Up Panel Replacement - Front Floor .

6. If a new or replacement BCM is being installed into the vehicle, program the BCM to the current vehicle. Refer to Body Control Module (BCM) Programming/RPO Configuration .



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:

• Real Time Damping (RTD)

• Memory Options

• Daytime Running Lamps (DRL)

• Front Fog Lamps

• Tire Pressure Monitor (TPM)

• HVAC (C60-Manual, CJ2-Automatic)

• Country of Sale (US, Canada, Europe, Japan, etc.)

The BCM sends password information to the PCM on the serial data line to enable fuel for Content Theft Deterrent (CTD) 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 is not properly programmed together, the vehicle will exhibit a no start condition and the PCM will store a DTC P1631.

When an ignition key or the BCM is replaced, the BCM must be programmed to accept the resistance value of the new or existing vehicle keys in order to allow PASS-Key® operation. When the BCM is replaced, the service replacement BCM is programmed to accept the first PASS-Key® resistance value detected. If the BCM is unable to detect a valid PASS-Key® resistance value, the BCM will never end the programming sequence and a DTC B2735 will set. The BCM can also be programmed to accept a new PASS-Key® code by completing the following BCM/PASS-Key® programming procedure:



Important:: Before proceeding with this programming procedure, check for proper communications between the BCM and PCM. If communications cannot be established, refer to the appropriate Diagnostic System Check for the system unable to communicate.

Maintain the battery voltage while the PCM is in the Auto Learn Procedure. Follow this procedure exactly as indicated or you will have to repeat the procedure from the beginning.

Manual Programming (Domestic/Canada Only)

1. Using a Tech 2, select New BCM Setup and program the BCM with the correct RPO code configuration.

2. Turn ON the ignition leaving the engine OFF for 11 minutes.

3. Turn OFF the ignition for 30 seconds.

4. Turn ON the ignition leaving the engine OFF for 11 minutes.

5. Turn OFF the ignition for 30 seconds.

6. Turn ON the ignition leaving the engine OFF for 11 minutes or until DTC P1630 sets.

7. Turn OFF the ignition for 30 seconds.

8. Turn ON the ignition leaving the engine OFF and wait 30 seconds.

9. Attempt to start the engine. If the engine does not start, Refer to the Powertrain On Board Diagnostic (OBD) System Check in Engine Controls.

Important: Performing this procedure may cause a DTC P1630 to set. If a DTC P1630 sets, turn OFF the ignition for 30 seconds, then turn ON the ignition. If the DTC P1630 does not clear, Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls.

Note> there are two other programming procedures via ;

Tech 2 to Techline Terminal OR Techline Terminal to Vehicle (No Tech 2)

Cheers,
Goose

 

Goose,

The car was experiencing a significant power draw and the shop determined that the BCM was the likely cause. The drain would take out a new or fully charged battery in less than an hour. That is as specific as I can be. Since the BCM replacement and the LCM5 mod the power drain is gone. The replacement BCM was a used/reconditioned unit, not new. It had 91K miles on at install. I will print our this thread of my discussion with the shop. Thanks for all your assistance, dofdear

 

Goose,
I've located the RFA and removed it. The print you provided is fussy. What should I expect on each of the 3 wires at the RFA connector?
Also, If I replace the RFA is there any matching with a scan tool required or will the system automatically recognize and marry up?

Thanks, dofdear

 

If the RFA worked before the BCM was replaced I would doubt that it is bad. I'd make sure the BCM was programmed right before doing anything else.