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problem with heater.


Wildcard

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my 00 deville's heater has started giving me trouble. when i set it to heat it will blow hot air on the passenger side but not the drivers side. also i think i hear sound being blown in side the dash on the drivers side. air does come out of all vents just not hot on drivers side. any idea's. is this something that would be a pain to fix? would the dash ect have to come out? thx in advance

also maybe this has something to do with it. the front drivers side window as well as the front drivers side seatheater does not work. are all those things connected to each other in some way like a fuse or relay?

Edited by Wildcard
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DTC = Diagnostic Trouble Code

Courtesy of JimD

DTC display; 1998-2004 Seville, 2000-2005 Deville and other models with 3 buttons on the RH side of DIC

Use the 3 switches located to the right (LH drive cars) of the Driver Information Center (DIC) to activate and respond to the OBD prompts on the DIC.

ON/OFF = YES

INFO RESET = NO

INFO DOWN or INFO UP = manual toggle

Ignition ON, acknowledge any warning messages; press ON/OFF and INFO UP together for 2 to 3 seconds. Everything in front of you lights up for 4 or 5 seconds, then you will see:

Display shows "ALL?"

Answering YES will display "ALL CODES?"

Answering YES will run automatic test sequence and display codes, if any. Systems and codes will scroll faster than I am able to read them and write them; not to worry.

"ALL CLEAR CODES?" will display at the end of the automatic test. If you are satisfied you have the information you need, answer YES to clear/erase all error codes.

Answering "ALL?" with INFO DOWN will toggle systems test manually in order.

Answering "ALL?" with INFO UP will toggle system test manually in reverse order.

Press INFO RESET to reset DIC to "ALL?" to start again.

Ignition OFF to exit.

SYSTEMS: (as of 1998)

ABS (Antilock Brake System)

AMP (Amplifier)

DDM (Door Driver Module)

DIM (Dash Integration Module)

IPC (Instrument Panel Cluster)

IPM (Instrument Panel Module)

IRC (Integrated Radio Module)

PCM (Powertrain Control Module)

RFA (Remote Function Actuation)

RIM (Rear Integration Module)

SDM (Sensing and Diagnostic Module) Includes airbag crash data. Under RF seat

VTD (Vehicle Theft Deterrent)

MSM (Memory Seat Module)

TTM (Tilt/Telescoping Module)

RSS (Road Sensing Suspension)

"History" means that the fault is no longer detected. It will stay in history for 50 ignition cycles then be deleted unless it becomes "Current" again or is cleared manually.

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