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Radio, hvac, rfa, cluster cel tel is draining my battery

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Where is the hdm module on 2006 monte carlo ltz


HDM module ??????? No such module .
DTC U0100 00: Lost Communication With Engine/Powertrain Control Module (ECM/PCM)
DTC U0101 00: Lost Communication With Transmission Control Module (TCM)
DTC U0121 00: Lost Communication With Electronic Brake Control Module (EBCM)
DTC U0140 00: Lost Communication With Body Control Module (BCM)
DTC U0151 00: Lost Communication With Restraints Control Module
DTC U0155 00: Lost Communication With Instrument Panel Cluster (IPC) Control Module
DTC U0164 00: Lost Communication With HVAC Control Module
DTC U0168 00: Lost Communication With Vehicle Theft Deterrent (VTD) Control Module
DTC U0170 00: Lost Communication With Passenger Presence System (PPS)
DTC U0184 00: Lost Communication With Radio
DTC U0186 00: Lost Communication With Audio Amplifier
DTC U0194 00: Lost Communication With Digital Radio Receiver (DRR)
DTC U0198 00: Lost Communication With Communication Interface Module (OnStar®)
DTC U0209 00: Lost Communication With Heated Seat Module (HSM)
DTC U0214 00: Lost Communication With Remote Function Actuation (RFA)

These are all the modules onyour vehicle - no hdm module .

Oct 13, 2017 | Cars & Trucks

1 Answer

Why does my battery drain over night on my 2003 cheverolet 2500 hd


One of the modules may be doing it , interior light lit -glove box ! Hard to say on newer vehicles , after 1996 ! You vehicle has some of these modules if not all !
The class 2 serial data line on this vehicle is a star configuration. The following modules communicate on the class 2 serial data line:
?€¢
The body control module (BCM)

?€¢
The digital radio reciever

?€¢
The driver door module (DDM)

?€¢
The electronic brake control module (EBCM)

?€¢
The front passenger door module (FPDM)

?€¢
The HVAC control module

?€¢
The inflatable restraint sensing and diagnostic module (SDM)

?€¢
The instrument panel cluster (IPC)

?€¢
The memory seat module (MSM)

?€¢
The powertrain control module (PCM)

?€¢
The radio

?€¢
The radio amplifier

?€¢
The rear seat audio (RSA) controller

?€¢
The rear seat entertainment (RSE) assembly w/U42

?€¢
The rear wheel steering control module

?€¢
The remote playback device-CD player w/U1S

?€¢
The transfer case shift control module

?€¢
The transmission control module (TCM) w/Allison Transmission

?€¢
The theft deterrent control module

?€¢
The vehicle communication interface module (VCIM) w/UE1

The way to find the drain on the battery is to do a Parasitic Draw Test ! I'll send a link for Eric the car guy !
How To Perform Parasitic Draw Test EricTheCarGuy

Mar 11, 2015 | Cars & Trucks

2 Answers

Can I reprogram my keyless remote from my 1995 eldorado to my 1996 cadillac eldorado


AS programs can be altered I would have it checked out at a dealer service centre as they will need the keys and the vehicle to see if it can be done

Jan 11, 2014 | 1996 Cadillac Eldorado

1 Answer

I recieved message ( RFA1 Battary low ) what does that mean


RFA means radio frequency actuation. This usually indicates one of your key fob batteries are getting weak. They work off RFA, by remotely operating your door locks thru radio signals. Its best to change the batteries in both remotes at the same time. They shouldn't, but not always need reprogramming. After replacing the battery, simply press the lock and unlock buttons together to re-synchronize the key fobs.

May 10, 2011 | Chevrolet Suburban Cars & Trucks

1 Answer

Need to replace heater core


CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.

79212518
  1. Disconnect the negative battery cable.
  2. Drain the engine coolant. See: Service and Repair
  3. Recover the refrigerant.
  4. Disconnect the heater hoses. See: Heater HoseService and Repair
  5. Remove the accumulator.
  6. Remove the instrument panel carrier. See: Instrument Panel, Gauges and Warning IndicatorsInstrument Cluster / CarrierService and Repair
  7. Remove the HVAC module drain hose.
  8. Disconnect the electrical harnesses and the ground connections as needed.
  9. Remove the HVAC module mounting nuts and the screws.
79212349
  1. Remove the HVAC module assembly. Set the HVAC module assembly on a bench.
79212352
  1. Remove the heater core cover screws.
  2. Remove the heater core cover.
79212355
  1. Remove the heater core.
INSTALLATION PROCEDURE

79212355
  1. Install the heater core.
79212352
  1. Install the heater core cover.
NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install heater core cover screws.
Tighten
Tighten the heater core cover screws to 9 N.m (80 lb in)

79212349
  1. Install the HVAC module assembly to the vehicle.
  2. Install the HVAC module mounting nuts and the screws.
Tighten
  • Tighten the mounting bolts to 4 N.m (35 lb in)
  • Tighten the mounting nuts to 9 N.m (80 lb in)
79212518
  1. Connect the electrical harnesses and the ground connections as needed.
  2. Install the HVAC module drain hose.
  3. Install the instrument panel carrier
  4. Install the accumulator.
  5. Connect the heater hoses.
  6. Connect the negative battery cable.
  7. Refill the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
  8. Recharge the air conditioning system. Refer to Refrigerant Recovery and Recharging .

Jan 01, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

Which fuse box has blower motor fuse on 2001 chev impala


There is a blower motor resistor located up under the passenger side dash. I believe there is actually 3 fuses that can cause problems with the blower....relays/fuses should be located in the engine compartment fuse block. They are High Blower fuse-HVAC fuse-Radio/HVAC/RFA/Cluster/etc...fuse. Hope this helps.

Feb 27, 2010 | 2001 Chevrolet Impala

2 Answers

RFA battery low. What does this mean


Check you Key FOB for a low battery.

May 20, 2009 | 2003 GMC Sierra 2500HD

1 Answer

Programing a new remote


Use these instuctions if your Deville has an Analog Instrument Cluster
1. Press OFF and WARM buttons on Climate Control Panel (CCP) simultaneously.
(Instrument Panel Cluster (IPC) will light all telltales, then go blank) System is now in diagnostic mode.
Press PASSENGER COOLER button until “RFA” is displayed, then press FAN UP.

If “RFA DATA” is displayed, press FAN DOWN.
If “RFA OVERRIDE” is displayed, press FAN UP.
2. If “RFA 500 NO OVERRIDE” is displayed, press FAN DOWN.
If “RFA 501 PROGRAM FOB #1” is displayed, Press FAN UP.
3. IPC will show “0” on right side of Driver Information Center (DIC) display.
Press warmer button on climate control unit until “99” is displayed.
4. Press and hold TRUNK button on transmitter. While holding TRUNK button, press LOCK button and hold for one
second. Hold both buttons for a total of 3 seconds. Locks cycle when programming is complete (if remote is not
programmed within 30 seconds after entering “99” override display, system will default and you must begin again at
step 2.

5. To program a second remote, press FAN DOWN button until “RFA 502 PROGRAM FOB #2” is displayed, then press
FAN UP. Repeat step 4.

To exit system, press AUTO, MODE UP, MODE DOWN, or RESET.




Use these instructions if your DeVille has a Digital Instrument Cluster
1. Press OFF and WARM buttons on Climate Control Center (CCC) simultaneously. Instrument Panel Cluster (IPC) will
light all telltales, go blank then enter DIAGNOSTIC
MODE. Press FAN DOW button to scroll through system until
“RFA” is displayed, then press FAN UP button. Press FAN DOWN button until “RFA OVERRIDE” is displayed, then
press FAN UP button. When “NO OVRD RF 500” is displayed, then press FAN UP button.

2. When “PGM FOBL 501” is displayed, press WARM button and “99” will be displayed in left upper corner of IPC just
below odometer. System is now ready to program remote.

3. Press and hold TRUNK button on transmitter. While holding TRUNK button, press LOCK button and hold for one
second. Hold both buttons for a total of 3 seconds. Locks cycle when programming is complete (if remote is not
programmed within 30 seconds after entering “99” override display, system will default and you must begin again at
step 2.)

4. To program second remote, pres FAN UP button until “PGM FOB2 502” is displayed, then follow steps 2 and 3 to
program second remote.

To exit system, press RECIRC or RESET buttons.

Disclaimer

Apr 25, 2009 | 1998 Cadillac DeVille

1 Answer

The A/C fan in my 04 Grand Prix will NOT shut off.


CLICK HERE for a schematic of your blower.

Your blower is not shutting off - so your BMCP (Blower Motor Control Processor) has malfunctioned... or the HVAC Control Module has failed.

Both provide power to the blower motor.

To check which one has failed - pull the HVAC control fuse RADIO/HVAC/RFA/CLSTR/ALDL (15Amp) and see if the fan shuts off - if not - try the BMCP fuse HI/BLWR (30Amp) - Both are listed listed at the top of the schematic.


Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Apr 23, 2009 | 2004 Pontiac Grand Prix

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