Similar Models
Most of the information contained here pertains to the 1993-96 Cadillac Fleetwood Brougham (D-Bodys), however almost all the components used on these cars are also shared with other Cadillac models and GM makes (ie. B-Bodys). Here's a partial list of other cars that this information might possibly pertain to:
* Buick Roadmaster * Chevorlet Caprice * Chevorlet Impala Super Sport * Oldsmobile Custom Cruiser
Calibration Information
Calibration information on any 1993 or later model year GM vehicle (Buick, Chevrolet, Chevy Truck, Oldsmobile, Pontiac, GMC, Cadillac, and Saturn) equipped with a reprogrammable engine controller (PCM or VCM). Vehicle Calibration Information Obtain the latest engine controller calibration information for your vehicle simply by entering the vehicle's 17 character Vehicle Identification Number (VIN) - From GM
Using the On-Board Diagnostics
Your Cadillac is equipped with a very good on-board diagnostic system capable of reading out the stored trouble codes.
To enter diagnotic mode:
* With the ignition in the "RUN" position (engine does not necessarily need to be running, but it will work either way). * Push (and hold) "OFF" and "WARMER" simultaneously on the Electronic Climate Control (ECC) until all telltales lights illuminate (segment check). * Release the "OFF" and "WARMER" buttons. * System is now in diagnostic mode. "00" (zero-zero) should now be displayed. This is the pointer. * Pressing "OUTSIDE TEMP" will allow you to display the corresponding code for the pointer. * Use the "FAN SPEED" override switch (UP/DOWN) to increment or decrement the pointer number. * Pressing "AUTO" or turning the ignition switch "OFF" exits diagnotic mode.
Pointers 00-04 contain the stored trouble codes.
* "00" = Powertrain Control Module (PCM) codes * "01" = Central Control Module (CCM) codes * "02" = Heating, Ventilation and Air-Conditioning (HVAC) codes * "03" = Supplemental Inflatable Restraint (SIR) codes * "04" = Anti-lock Brake/Traction Control System (ABS/TC) Codes
Codes prefixed by a "1" are history codes.
A code can be cleared by pressing the "OFF" button while that particular code is being displayed.
1993 5.7L Throttle Body Injection, VIN 7 1994-1995-1996 5.7L Fuel Injection, VIN P
Powertrain Control Module (PCM) Codes
Code Description 00-11 ........................................ Malfunction Indicator Lamp (MIL) circuit 00-13 ....................................... Heated Oxygen sensor voltage out of range 00-14 ........ Coolant temperature sensor signal indicates excessively high temperature 00-15 ......... Coolant temperature sensor signal indicates abnormally cold temperature 00-16 ............................ Distributor low resolution pulse not received by ECM 00-18 .................................. Injector driver circuit voltage to PCM problem 00-21 ........................................................ TPS high voltage problem 00-22 ......................................................... TPS low voltage problem 00-23 ...................... Inlet air temperature sensor indicates low air temperature 00-24 ........................................... Throttle position angle problem (VSS) 00-25 ............... Inlet air temperature (IAT) sensor indicates high air temperature 00-26 ................... ECM detected wrong potential voltage at #1 quad-driver module 00-27 ................... ECM detected wrong potential voltage at #2 quad-driver module 00-28 ................... ECM detected wrong potential voltage at #3 quad-driver module 00-29 .......................... Secondary air injection pump circuit voltage was wrong 00-31 .................. Cam pulse missing on first pass through internal ECM self test 00-32 .......... EGR open command did not change fuel mixture during off idle operation 00-33 ............................. MAP sensor signal voltage was too high (low vacuum) 00-34 ............................. MAP sensor signal voltage was too low (high vacuum) 00-35 ........................................... MAP sensor signal showed a low vacuum 00-36 ........................................... ECM timing pulse/low resolution pulse 00-37 ............................................................ Brake swith stuck ON 00-38 ........................................................... Brake swith stuck OFF 00-41 ........................................................ EST circuit high voltage 00-42 ...................................................... PCM did not detect any EST 00-43 .......................... One or both knock sensors were either open or grounded 00-44 ....................... Left oxygen sensor under voltages (closed loop operation) 00-45 ......................... Left oxygen sensor over voltage (closed loop operation) 00-46 ............................................ Anti-Theft Pass Key signal was wrong 00-47 ............................................. Knock sensor signal was not present 00-48 ............................................... No MAF signal with engine running 00-50 .................................. PCM detected an ignition low voltage condition 00-51 ......................................................... Programmed EEPROM error 00-52 ............................................. Engine oil low temperature detected 00-53 ................................... ECM detected a battery high voltage condition 00-54 ......................................... Fuel pump system voltage problem (high) 00-55 .................... ECM detected lean oxygen sensor during power enrichment mode 00-56 .............................................. Vacuum sensor voltage out of range 00-58 ............ Transmission Fluid Temperature sensor circuit low (high temperature) 00-59 ............ Transmission Fluid Temperature sensor circuit high (low temperature) 00-61 ................ Vacuum sensor voltage problem with secondary port throttle valve 00-62 ............................................ Engine oil high temperature detected 00-63 ..................................................... Right oxygen sensor problem 00-64 ................. Right oxygen sensor low voltage problem (closed loop operation) 00-65 ................ Right oxygen sensor high voltage problem (closed loop operation) 00-66 ..................................... A/C pressure sensor circuit open or shorted 00-67 ........ ECM did not detect an A/C system pressure change with A/C clutch engaged 00-68 ....... ECM detects voltage on A/C status line after ECM disengaged the A/C relay 00-69 ........ ECM did not detect voltage on A/C status line after ECM commanded A/C ON 00-70 .............. A/C clutch relay circuit showed incorrect potential voltage at PCM 00-72 ........... Transmission output speed changed with vehicle was in park or neutral 00-73 ............................... Pressure control solenoid return amperage problem 00-74 ........... Traction control system active signal with vehicle in park or neutral 00-75 ........................... Ignition low voltage with engine speed above 1000 RPM 00-77 .................. Cooling fan relay #1 control potential voltage incorrect (PCM) 00-78 ........... Cooling fan relay #2 and #3 control potential voltage incorrect (PCM) 00-79 ............. Transmission fluid temperature signal indicates high temp condition 00-81 ......................................... Transmission 2-3 shift solenoid problem 00-82 ......................................... Transmission 1-2 shift solenoid problem 00-83 .................................................. TCC PWM solenoid circuit fault 00-84 ......................................... Transmission 3-2 shift solenoid problem 00-85 ................................. TCC solenoid problem after commanded OFF by PCM 00-90 ...................................................... TCC solenoid circuit fault 00-91 ............... One to Four up-shift lamp control signal showed incorrect voltage 00-95 ......................................................... Change oil lamp circuit 00-96 ............................................................ Low oil lamp circuit 00-97 ............................... VSS output signal showed incorrect voltage at PCM 00-98 .............................. Tach output signal showed incorrect voltage at PCM
Central Control Module (CCM) Codes
Code Description 01-20 ................ Retained Accessory Power (RAP) enable circuit shorted to battery 01-21 ......... Retained Accessory Power (RAP) enable circuit open or shorted to ground 01-22 .................. Delayed Interior Light (DIL) enable circuit shorted to battery 01-23 ........... Delayed Interior Light (DIL) enable circuit open or shorted to ground 01-24 ...................................... Courtesy output circuit shorted to battery 01-25 ............................... Courtesy output circuit open or shorted to ground 01-26 ......... Variable Effort Steering (VES) output circuit open or shorted to ground 01-27 ........................................... VES output circuit shorted to battery 01-28 ............................................ VES tracking error (open or shorted) 01-30 .............................. PASS key fault telltale circuit shorted to battery 01-31 ....................... PASS key fault telltale circuit open or shorted to ground 01-32 .......................................... Fuel enable circuit shorted to battery 01-33 ................................... Fuel enable circuit open or shorted to ground 01-34 ...................................... Headlamp enable circuit shorted to battery 01-35 .................................. Parking lamp enable circuit shorted to battery 01-36 ................... Daytime Running Lamps (DRL) enable circuit shorted to battery 01-37 ............ Daytime Running Lamps (DRL) enable circuit open or shorted to ground 01-40 ......................... Delay pot circuit shorted to ground (Twilight Sentinel) 01-41 ................ Delay pot circuit open or shorted to battery (Twilight Sentinel) 01-42 .......................................... Key resistor circuit shorted to ground 01-43 ................................. Key resistor circuit open or shorted to battery 01-44 ......................... Steering wheel sensor circuit open or shorted to ground 01-45 ........................ Steering wheel sensor circuit open or shorted to battery 01-46 ............................................................ CCM Internal Failure 01-47 ..................................................... Canadian Select Input Error
Heating, Ventilation and Air Conditioning (HVAC) Codes
Code Description 02-01 ................................... Outside Air Temperature Sensor Circuit (open) 02-02 ................................ Outside Air Temperature Sensor Circuit (shorted) 02-03 .................................... In-Car air temperature sensor circuit (open) 02-04 ................................. In-Car air temperature sensor circuit (shorted) 02-05 ...................................... Sun load temperature sensor circuit (open) 02-06 ................................... Sun load temperature sensor circuit (shorted) 02-10 .................................................... Air mix motor circuit (open) 02-11 ................................................. Air mix motor circuit (shorted) 02-26 .................................. Serial Data Communication error (shorted/open) 02-27 ......................................................... Invalid EEPROM detected
Supplemental Inflatable Restraint (SIR) Codes
Code Description 03-15 ..................................... Passenger initiator circuit resistance high 03-16 ...................................... Passenger initiator circuit resistance low 03-17 ................................................ Passenger initiator circuit open 03-21 ........................................ Driver initiator circuit resistance high 03-22 ......................................... Driver initiator circuit resistance low 03-24 ................................................... Initiator circuit voltage low 03-25 ............................................. Initiator circuit short to ignition 03-26 ................................................... Driver initiator circuit open 03-35 ................................. Discriminating sensor open or shorted to ground 03-36 ............................. Discriminating sensor closed or shorted to ignition 03-51 .......................................................... Frontal crash detected 03-52 .................................................................. Data area full 03-61 ................................................... SIR indicator circuit failure 03-62 ......................................... Redundant SIR indicator circuit failure 03-71 .............................................................. Internal SDM Fault
Anti-Lock Brake/Traction Control (ABS/TC) Codes
Code Description 04-21 ........................................................ Front right wheel speed sensor 04-23 ............................... Wheel speed sensor circuit continuity malfunction 04-25 ........................................................ Front left wheel speed sensor 04-27 ............................... Wheel speed sensor circuit continuity malfunction 04-28 ................................ Wheel speed sensor circuit frequency malfunction 04-31 ......................................................... Rear right wheel speed sensor 04-33 ............................... Wheel speed sensor circuit continuity malfunction 04-35 ......................................................... Rear left wheel speed sensor 04-37 ............................... Wheel speed sensor circuit continuity malfunction 04-41 .................................... Right Front Inlet Valve Solenoid malfunction 04-42 ................................... Right Front Outlet Valve Solenoid malfunction 04-44 ................................................ Pilot Valve Solenoid Malfunction 04-45 ..................................... Left Front Inlet Valve Solenoid malfunction 04-46 .................................... Left Front Outlet Valve Solenoid malfunction 04-47 ............................................... TCS Prime Valve (ASV) Malfunction 04-48 ........................... TCS Master Cylinder Isolation Valve (USV) Malfunction 04-51 ..................................... Right Rear Inlet Valve Solenoid malfunction 04-52 .................................... Right Rear Outlet Valve Solenoid malfunction 04-55 ...................................... Left Rear Inlet Valve Solenoid malfunction 04-56 ..................................... Left Rear Outlet Valve Solenoid malfunction 04-58 .................................... EBTCM Internal Adjuster Assembly Malfunction 04-61 ................................................ BPM Valve Pump Motor Malfunction 04-62 .......................................................... RPM Signal Malfunction 04-63 .............................................. BPM Valve Power Supply Malfunction 04-64 ............................................ Throttle position signal malfunction 04-65 ....................................................... Adjuster assembly circuit 04-66 ........................................... Adjuster assembly control malfunction 04-67 ............................................. Throttle position sensor comparison 04-71 ...................................................... EBTCM Internal Malfunction 04-72 ................................................... Serial data lin e malfunction 04-73 ......................................................... Spark retard monitoring 04-85 .................................................. Low Voltage Condition Detected
Diagnostic Pointers and Parameters
No. Description Range Default Value Units -00 PCM System Diagnostic Trouble Codes ............................................... -01 CCM System Diagnostic Trouble Codes ............................................... -02 ACAC (HVAC) System Diagnostic Trouble Codes ....................................... -03 SIRSystem Diagnostic Trouble Codes ................................................ -04 ABS/TC System Diagnostic Trouble Codes ............................................ -05 Program number .......................... 0-255 ....... n/a ............. Counts -07 Command Blower Motor Speed .............. 0-128 ....... n/a ............. Counts -14 Vehicle speed ........................... 0-199 ....... n/a ................ MPH -15 HVAC Learn Mode (Temp Cal) .............. -5 to +5 F .. 0 F ............ Degrees -18 Sun Load Sensor ......................... 0-255 ....... n/a ............. Counts -20 Current Temperature Valve Position ...... 0-255 ....... 240 ............. Counts -22 Temperature Valve Position (Full Cold) .. 180-250 ..... 180 ............. Counts -23 Temperature Valve Position (Full Hot) ... 5-60 ........ 60 .............. Counts -24 Engine Coolant Temperature .............. -40 to 151 .. n/a ............ Celsius -25 Command Temperature Valve Position ...... 0-255 ....... 128 ............. Counts -27 Air Delivery Mode ....................... 0-9 ......... n/a ... Code (see below) -28 Inside Air Temperature Sensor ........... 0-255 ....... n/a ............. Counts -31 Outside Air Temperature Sensor .......... 0-255 ....... n/a ............. Counts -37 EEPROM Revision Number .................. 0-0000 ...... n/a ............... Code
HVAC Air Deliver Mode Table Code Mode 00 -- Off 01 -- Recirc 02 -- A/C 03 -- Bi-Level 04 -- Defog 05 -- Heater 06 -- Defrost 07 -- Blower delay 08 -- Purge 09 -- A/C Purge
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