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Cadillac Owners Connoisseur
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Discussion Starter #1 (Edited by Moderator)
To check for Diagnostic Trouble Codes stored in the computer, turn the ignition on, then hold down the OFF and WARMER (for digital dash) or OFF and passenger-WARMER buttons (for analog dash) or OFF and "Info ^" buttons (if you have temperature dials) until all of the dash lights come on. The digital display will then show any codes stored. Be prepared to write them down. When it's done, you will probably see "PCM?" At that point, press the OFF button 3 or 4 times until the dash goes back to normal, or just turn off the ignition.

If you've checked for codes and found some, this is what you need to look up what they mean:

If your car is a 1996 model or newer, go here: (OBDII)
http://www.obd-codes.com/trouble_codes/ (P codes only, but with diagnostic help.)


This link includes all OBD-II codes (P, B, C, and U codes)

http://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

If your car is 1995 or older, go here (OBDI)
http://www.gmtuners.com/OBD1_DTC.htm

Once you have looked up what the codes mean using the web sites listed above, you may be able to figure out exactly what needs to be done by the definition of the code. If you have any questions on what it means or how to fix it, come back to your forum question and post the code and the definition. More than likely, someone will be able to tell you exactly what needs to be done. We will do our best to help.

Good luck!

******************************************************************************************************

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.
"CLEAR ALL 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.

If you need advice after a code pull, post your found codes and definitions in your proper forum.

How to video.
http://www.youtube.com/watch?feature=player_embedded&v=eV1kmY_fga4
__________________

****************************************************************************************************

Courtesy of Submariner409 - How to look at only one module at a time - manual scrolling and clearing

In the 1998 - 2004 models with the 3 DIC control buttons, if you enter the code sequence and answer the ALL CODES ? with NO, that allows you to use the buttons to scroll to/back to each module individually in alphabetical order (no auto-scroll) and work with/delete codes in that module only. You then use YES, NO and ^/v to step to the next module. This way you have more time to write down codes and you do not need to clear ALL CODES.

More homework .........

https://www.google.com/search?source=hp&ei=mHctWs_RFYPx_AaT2JHYCQ&q=how+to+pull+cadillac+eldorado+diagnostic+trouble+codes&oq=how+to+pull+cadillac+eldorado+diagnostic+trouble+codes&gs_l=psy-ab.3...2563.19443.0.19745.54.54.0.0.0.0.136.5237.34j20.54.0....0...1.1.64.psy-ab..0.53.5124...0j0i131k1j0i22i30k1j33i22i29i30k1j33i160k1j33i21k1.0.Nuk3Gnr9o8A


******************************************************************************************************

Pre '98 Sevilles
Courtesy of N*Caddy

Here is a image I posted some while back (back when my car had no BOSE) and it couldn't show in a much suggestive matter how to access your diagnose mode (where you can read the codes):



Don't worry you can NOT hurt anything.

First turn the key to ON (you can either start the engine or not important key is in ON position)
Follow the steps in the picture:
Step A. After 2-3 seconds of holding the two buttons shown the whole dash board (lights displays) will turn on for 2 seconds or so. IS OK!! is just a test to make sure that all lights and display pixels/elements are working.
Step B. Point your attention to the display strip on the IPC and you will see something like:
"B1234 Current"
"C4321 History"
"NO RFA CODES"
"NO MMM CODES"
...
"PCM?"
Each code will be shown for 1-2 seconds so you have to have a fast eye and a paper with a pen to write them quickly. Alternatively use some cell phone (or what ever device) to film the sequence.
Once the codes are finished and the enumeration will stop and the display will show something like "PCM?" then that's it the codes are finished you can just turn OFF the key and exit the Diagnose procedure.
Alternatively press "OFF" on the climate control and Diagnose mode is restarted (i.e. all the dash lights/displays are on). While all the lights are one press again "OFF" and you are out of the Diagnose mode. At ANY time you can just turn the key to OFF and that's it.
By the way, since yours is a '96 it will display the codes as a 2 letters followed by a 4 digit number rather than one letter and 4 digits as in the '97 and newer.

The whole procedure last 1 minute, is something you can do just before stepping out of the car once you park it on the drive way.

====================================================================================

For later Eldorado .............

http://www.cadillacforums.com/forums/cadillac-seville-cadillac-eldorado-forum/822169-hot-pull-clear-dtc-codes-2000-a.html
 

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Master of the Dark Art of Diagnostics
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18,716 Posts
OBD1 Diagnostic Trouble Codes

I022 . Panel Dimming Switch Pot Circuit
I027 . PRND321 switch failure
I032 . Loss of ABS/TCS Data
I033 . Loss of Supplemental Inflatable Restraint Data
I034 . Loss of Powertrain Control Module Data
I037 . Loss of Air Conditioning Programmer Data
I039 . Loss of Road Sensing Suspension Data
I041 . Battery Voltage Too Low
I042 . Battery Voltage Too High
I052 . Keep Alive Memory Error
I056 . Instrument Panel Cluster EEPROM Error


Antilock Brake System (ABS)


T021 . RF Wheel Speed Sensor Fault
T022 . RF Wheel Speed Sensor Frequency Error
T023 . RF Wheel Speed Sensor Continuity Fault
T025 . LF Wheel Speed Sensor Fault
T026 . LF Wheel Speed Sensor Frequency Error
T027 . LF Wheel Speed Sensor Continuity Fault
T028 . Wheel Speed Sensor Frequency Error
T031 . RR Wheel Speed Sensor Fault
T032 . RR Wheel Speed Sensor Frequency Error
T033 . RR Wheel Speed Sensor Continuity Fault
T035 . LR Wheel Speed Sensor Fault
T036 . LR Wheel Speed Sensor Frequency Error
T037 . LR Wheel Speed Sensor Continuity Fault
T041 . RF ABS Valve Solenoid Fault
T044 . RF TCS Pilot Valve Fault
T045 . LF ABS Valve Solenoid Fault
T048 . LF TCS Pilot Valve Fault
T051 . RR ABS Valve Solenoid Fault
T055 . LR Valve Solenoid Valve Fault (TCS)
T055 . Rear Valve Solenoid Valve Fault (Non - TCS)
T061 . Motor Pump Circuit Fault
T063 . Valve Relay Fault
T067 . Brake Light Switch Fault
T071 . Electronic Brake and TCS (EBTCM/EBCM) Internal Fault
T072 . Serial Data Link Fault
T073 . PCM - EBTCM/EBCM Pulse Width Modulation Signal Fault
T083 . Brake Fluid Level Low


Supplemental Inflatable Restraint (SIR)

R014 . Dual Pole Arming Sensor Disconnected
R015 . Passenger Initiator Circuit Resistance High
R016 . Passenger Initiator Circuit Resistance Low
R017 . Passenger Initiator Circuit Open
R018 . Discriminating Sensor Interconnect Open
R019 . Passenger Initiator Circuit Voltage High
R021 . Driver Initiator Circuit Resistance High
R022 . Driver Initiator Circuit Resistance Low
R023 . Driver Initiator Circuit Voltage High
R024 . Initiator Circuit Voltage Low
R025 . Initiator Circuit Short to Ignition
R026 . Driver Initiator Circuit Open
R028 . Current Sink Or Source Failure
R031 . Driver Loop Energy Reserve Feed Open
R034 . Dual Pole Arming Sensor Ignition Feed Open
R035 . Discriminating Sensor Open or Missing
R036 . Passenger Loop Energy Reserve Feed Open
R042 . Loop Energy Reserve Voltage Low
R043 . Driver Source Feed Low
R044 . Passenger Source Feed Low
R051 . Frontal Crash Detected
R052 . Data Area Full
R053 . Driver Side Low High Resistance
R054 . Passenger Side Low High Resistance
R055 . DERM Incompatibility
R061 . SIR Indicator Circuit Failure
R062 . Redundant SIR Indicator Circuit Failure
R071 . Internal Diagnostic Energy Reserve Module Fault
R075 . Internal DERM Fault
R081 . Driver Ignition Diode Open
R082 . Passenger Ignition Diode Open
R083 . Driver Reserve Diode Shorted
R084 . Passenger Reserve Diode Shorted


Air Conditioning Programer (ACP)


A010 . Outside Temperature Sensor Circuit
A011 . High Side Temperature Sensor Circuit
A012 . Low Side Temperature Sensor Circuit
A013 . In-Car Temperature Sensor Circuit
A015 . Sun Load Sensor Circuit
A037 . Loss of Instrument Panel Cluster Data
A040 . Air Mix Valve (Door) Circuit Problem
A046 . Low Refrigerant Charge
A047 . Low Refrigerant Charge
A048 . Low Refrigerant Pressure
A049 . HVAC - Coolant Temperature Too High
A050 . HVAC - Coolant Temperature Too High
A052 . Keep alive memory error


Traction Control System (TCS)


T021 . RF Wheel Speed Sensor Fault
T022 . RF Wheel Speed Sensor Frequency Error
T023 . RF Wheel Speed Sensor Continuity Fault
T025 . LF Wheel Speed Sensor Fault
T026 . LF Wheel Speed Sensor Frequency Error
T027 . LF Wheel Speed Sensor Continuity Fault
T028 . Wheel Speed Sensor Frequency Error
T031 . RR Wheel Speed Sensor Fault
T032 . RR Wheel Speed Sensor Frequency Error
T033 . RR Wheel Speed Sensor Continuity Fault
T035 . LR Wheel Speed Sensor Fault
T036 . LR Wheel Speed Sensor Frequency Error
T037 . LR Wheel Speed Sensor Continuity Fault
T041 . RF ABS Valve Solenoid Fault
T044 . RF TCS Pilot Valve Fault
T045 . LF ABS Valve Solenoid Fault
T048 . LF TCS Pilot Valve Fault
T051 . RR ABS Valve Solenoid Fault
T055 . LR Valve Solenoid Valve Fault (TCS)
T061 . Motor Pump Circuit Fault
T063 . Valve Relay Fault
T067 . Brake Light Switch Fault (TCS Equipped Vehicles Only)
T071 . Electronic Brake and TCS (EBTCM/EBCM) Internal Fault
T072 . Serial Data Link Fault
T073 . PCM - EBTCM/EBCM Pulse Width Modulation Signal Fault
T083 . Brake Fluid Level Low


Road Sensing Suspension (RSS)


S010 . Left Front Damper Solenoid Valve Short to B+
S011 . Left Front Damper Solenoid Valve Short to Ground/Open
S015 . Right Front Damper Solenoid Valve Short to B+
S016 . Right Front Damper Solenoid Valve Short to Ground/Open
S020 . Left Rear Damper Solenoid Valve Short to B+
S021 . Left Rear Damper Solenoid Valve Short to Ground/Open
S025 . Right Rear Damper Solenoid Valve Short to B+
S026 . Right Rear Damper Solenoid Valve Short to Ground/Open
S030 . Speed Sensitive Steering Fault
S035 . Electronic Level Control Compressor Short to B+
S036 . Electronic Level Control Compressor Short to Ground/Open
S037 . Electronic Level Control Exhaust Valve Short to B+
S038 . Electronic Level Control Exhaust Valve Short to Ground/Open
S043 . Speed Signal Fault
S044 . Lift or Dive Signal Fault
S050 . Road Sensing Suspension Module Fault
S055 . Resistor Module Short to Ground/Open
S060 . Left Front Position Sensor Fault
S061 . Right Front Position Sensor Fault
S062 . Left Rear Position Sensor Fault
S063 . Right Rear Position Sensor Fault
S064 . Left Front Position Sensor Overcurrent
S065 . Right Front Position Sensor Overcurrent
S066 . Left Rear Position Sensor Overcurrent
S067 . Right Rear Position Sensor Overcurrent
S070 . Left Front Accelerometer Fault
S071 . Right Front Accelerometer Fault
S072 . Left Rear Accelerometer Fault
S073 . Right Rear Accelerometer Fault
S074 . Left Front Accelerometer Overcurrent
S075 . Right Front Accelerometer Overcurrent
S076 . Left Rear Accelerometer Overcurrent
S077 . Right Rear Accelerometer Overcurrent


Powertrain (PCM) (Engine/Transmission)


P000 . Cruise Servo Apply Problem
P012 . No Distributor Signal
P013 . Right Oxygen Sensor Not Ready
P014 . Shorted Coolant Temp Sensor
P015 . Open Coolant Temp Sensor Signal
P016 . Voltage Out of Range [ALL SOL]
P017 . Left Oxygen Sensor not ready
P019 . Shorted Fuel Pump Circuit
P020 . Open Fuel Pump Circuit
P021 . Shorted TPS Signal [VCC]
P022 . Open TPS Signal [VCC]
P023 . EST Signal problem [EGR]
P024 . Vehicle Speed Sensor signal to TCC
P025 . (Ignition Control Module) 24x Reference Low Indicator
P026 . Shorted Throttle Signal Switch
P027 . Open throttle signal switch
P029 . Transaxle Shift 'B' solenoid problem (1st, 3rd, 4th gear)
P030 . ISC RPM out of range
P031 . Shorted MAP Sensor
P032 . Open MAP Sensor Signal
P034 . MAP Sensor Signal Out of Range
P036 . EGR valve pintle position out of range
P037 . Shorted MAT Sensor Signal
P038 . Open MAT Sensor Signal
P039 . Torque Coverter Clutch (VCC) Engagement Problem
P040 . Power steering Pressure switch open
P041 . No Cam reference signal from ignition control module
P041 . Cam Sensor Signal Problem
P042 . Left Oxygen Sensor Signal Lean
P043 . Left Oxygen Sensor Signal Rich
P044 . Right Oxygen Sensor Signal Lean
P045 . Right Oxygen Sensor Signal Rich
P046 . Right to Left Bank Fueling Difference
P047 . IPC - PCM Data Problem
P048 . EGR system Problem
P051 . MEM-CAL Error
P052 . PCM Memory Reset
P053 . Distributor Signal Interrupt
P055 . Closed Throttle Angle Out of Range
P056 . Transmission Input Speed Sensor
P058 . PASSKey Control Problem
P059 . Transmission Input speed sensor
P060 . Cruise-Transaxle Not in Drive
P061 . Cruise - Vent Solenoid Problem
P062 . Cruise - Vacuum Solenoid Problem
P063 . Set Vs. Vehicle Speed Difference
P064 . Cruise - Vehicle Acceleration Too High
P065 . Cruise - SPS Failure
P066 . Cruise - RPM Out of Range
P067 . Cruise Switch shorted at Enable
P068 . Cruise Command Problem (servo out of range)
P070 . Intermittent TPS Signal
P071 . Intermittent MAP Signal
P073 . Intermittent Coolant Sensor Signal
P074 . Intermittent MAT Signal
P075 . Intermittent VSS Signal
P076 . Transmission Pressuse Solenoid
P078 . Shift Solenoid Malfunction
P080 . Fuel System Rich
P083 . Crankshaft to Ignition Module Failure
P085 . Idle Throttle Angle Too High
P086 . Undefined Gear Ratio (Trans Pressure Control)
P089 . Long Shift and Maximum Adapt (Trans. Pressure Control)
P090 . VCC Brake Switch Input Problem
P090 . TCC Brake Switch Input Circuit Problem
P091 . PRNDL Switch Problem (transaxle range switch problem)
P092 . Heated Windshield Request Problem
P092 . Traction Control System PWM Link Failure
P094 . Transaxle Shift "A" Solenoid Problem (Vehicle Speed Sensor)
P095 . Engine Stall Detected
P096 . Torque Converter Overstress
P097 . High RPM P/N to D/R Shift
P098 . High RPM P/N to D/R Shift Under ISC
P099 . Cruise Control Servo Applied, Not in Cruise
P103 . Open Brake Booster Vacuum Sensor
P105 . Brake Booster Vacuum Too Low
p109 . Keep Alive Memory (KAM) Reset
P110 . Generator L-terminal Circuit Problem
P117 . Open/Short Solenoids/Solenoid Wiring (Transmission)
P119 . Open or Shorted Fuel Injector
P132 . Knock Sensor Circuitry Failure
p137 . Loss of ABS/TCS Data
 
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