Cadillac Allante models, 1987, 1988, 1989, 1990, 1991, 1992 may also apply to other Cadillac models of the period.
Codes ABS, ECM, BCM ABS - Anti-Lock Diagnostic Codes
1 Left Front Valve Problem 2 Right Front Valve Problem 3 Right Rear Valve Problem 4 Left Rear Valve Problem 5 LF WSS Low Output 6 RF WSS Low Output 7 RR WSS Low Output 8 LR WSS Low Output 9 LF/RR WSS Signal Error 10 RF/LR WSS Signal error 11 Valve Relay Circuit Problem 12 Replenishing Valve Circuit Problem 13 Improper Booster Sequence - Pressure 14 Improper Booster Sequence - Piston Travel 15 Improper Booster Sequence - Brake Light Switch 16 EBCM error
ECM (Engine Control Module) Diagnostic Codes
E012 No distributor signal E013 Rt. Oxygen Sensor Not ready E014 Shorted Coolant sensor Circuit AIR E015 Open Coolant sensor Circuit AIR E016 Generator Voltage Out of Range / All solenoids, Except Shift Solenoids E017 Left Oxygen Sensor Not ready E019 Shorted Fuel Pump Circuit E020 Open Fuel Pump Circuit E021 Shorted Throttle Position sensor circuit VCC E022 Open Throttle Position sensor circuit VCC E023 EST/Bypass Circuit problem AIR E024 Speed sensor Circuit problem VCC, CRUISE E026 Shorted Throttle Switch Circuit EGR E027 Open throttle Switch Circuit EGR E028 Open third or Fourth Gear Circuit or Shorted 2-3 / Shift solenoid VCC, CRUISE E029 Shorted third gear Switch Circuit or Open 2-3 / Shift solenoid VCC, CRUISE E030 ISC Circuit Problem E031 Shorted MAP Sensor Circuit AIR E032 Open MAP Sensor Circuit AIR E034 MAP Sensor Signal Too High AIR E037 Shorted MAT Sensor Circuit AIR E038 Open MAT Sensor Circuit AIR E039 VCC Engagement Problem VCC E040 Power Steering Pressure Switch Circuit Problem E041 Cam Sensor Circuit Problem E042 Left Oxygen Sensor signal Lean / AIR, CL canister purge E043 Left Oxygen sensor Signal signal Rich / AIR, CL canister purge E044 Rt. Oxygen Sensor Signal Lean / AIR, CL canister purge E045 Rt. Oxygen Sensor Signal Rich / AIR, CL canister purge E046 Right to Left Bank Fueling Imbalance E047 BCM - ECM Data Problem E048 EGR systém Fault EGR E049 AIR Management Systém Fault AIR E052 ECM Memory Reset Indicator E053 Distributor Signal Interrupt E055 TPS Misadjusted E056 Open Fourth Gear Switch circuit or Shorted 3-4 / Shift solenoid VCC E057 Shorted Fourth Gear Switch circuit or Open 3-4 / Shift solenoid VCC E059 Trans. Temperature sensor circuit problem VCC E060 Cruise - Transmission Not in Drive CRUISE E061 Cruise - Vent Solenoid circuit Problem CRUISE E062 Cruise - Vacuum Solenoid Circuit Problem CRUISE E063 Cruise - Car Speed And Set Speed / Difference Too high CRUISE E064 Cruise - Car Acceleration Too High CRUISE E065 Cruise - Servo Position Sensor Failure CRUISE E066 Cruise - Engine RPM Too High CRUISE E067 Cruise - Switch Shorted During Enable CRUISE
BCM (Body Control Module) Diagnostic Codes
B110 Outside Air Temperature Circuit Problem B111 A/C High Side Temperature Circuit Problem B112 A/C Low Side Temperature Circuit Problem / A/C Clutch B113 In - Car Temperature Circuit Problem B115 Sunload Temperature circuit Problem B119 Twilight Sentinel Photosensor circuit Problem / Twilight Sentinel B120 Twilight Sentinel Delay pot Circuit Problem B122 Panel Lamp Dimming Pot Circuit Problem B124 Speed Sensor Circuit Problem B127 PRND321 Sensor Circuit Problem / Park Break Relase B132 Oil Pressure Sensor Failure B334 Loss Of ECM Data B335 Loss Of CCDIC Data B336 Loss Of IPC Data B337 Loss Of Programmer Data / A/C Clutch, Park Brake Relase B410 Charging System Problem B411 Battery Volts Too low B412 Battery Volts Too High B420 BCM Output Driver / 1 Failure B421 BCM Output Driver / 2 Failure B440 Air Mix Door Problem B441 Cooling Fans Problem B446 Low A/C Refrigerant Condition Warning B447 Very Low A/C Refrigerant Condition Warning / A/C clutch B448 Very Low A/C Refrigerant Pressure Condition / A/C clutch B449 A/C High Side Temperature Too High / A/C clutch B450 Coolant Temperature Too High / A/C clutch B480 Loss of ABS Communication B481 ABS Fault B552 BCM Memory Reset Indicator B556 BCM EEPROM Error
For the purposes of the D.I.C. LO = NO HI = YES
Starts here:
PRESS: OFF & WARM (red button) together - the D.I.C. will light up the instrument cluster like a Christmas tree - the D.I.C. will start diagnostics, as soon as it starts displaying ..
PRESS: LO - until " ECM " comes up
PRESS: HI - until " CLEAR CODES ? " comes up
PRESS: HI - press only once - response will be in a few seconds: CODES CLEARED
you are done ...
PRESS RESET and you are back to normal
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