Repair manual
Wiring diagrams
Cadillac Seville IV Repair Manual
Step-by-step repair and maintenance instructions for the Cadillac Seville IV (1992–1997): removal, installation, adjustment, diagnostics and parameter checks with illustrations.
67sections
372articles
ENManual language
- INTRODUCTION
- SELF-DIAGNOSTIC SYSTEM
- ENTERING SELF-DIAGNOSTICS
- DISPLAYING TROUBLE CODES
- STATUS LIGHTS DISPLAY
- SERVICE MODE OPERATION
- Selecting System Level
- Selecting Test Type Level
- Selecting Clear Codes
- PCM LOCATION
- PD01: Throttle Position (TP) Sensor
- PD02: Manifold Air Pressure (MAP)
- PD03: Computed Barometric Pressure (BARO)
- PD04: Coolant Temperature Sensor (CTS)
- PD05: Intake Air Temperature (IAT) Sensor
- PD08: Spark Advance
- PD10: Battery State Of Charge
- PD11: Engine Speed (RPM)
- PD12: Vehicle Speed (MPH)
- PD30: Front Bank Injector Pulse Width
- PD31: Rear Bank Injector Pulse Width
- PD32: Front Oxygen Sensor Voltage
- PD33: Rear Oxygen Sensor Voltage
- PD34: Front Oxygen Sensor Cross Counts
- PD35: Rear Oxygen Sensor Cross Counts
- PD36: Front Bank Short Term Fuel Trim
- PD37: Rear Bank Short Term Fuel Trim
- PD38: Front Bank Long Term Fuel Trim
- PD39: Rear Bank Long Term Fuel Trim
- PD70: Cruise Control Feedback
- PD71: PRNDL 1 Status
- PD72: PRNDL 2 Status
- PD98: Ignition Cycle Counter
- PD99: PCM Programmable Read Only Memory (PROM) Identification Code
- PCM SPECIFIC INPUT CODES
- PI70: Cruise Control Brake Switch
- PI71: Torque Converter Clutch (TCC) Brake Switch
- PI72: Throttle Switch
- PI79
- PI82: Cruise Control ON/OFF Switch
- PI83: Cruise Control SET/COAST Switch
- PI84: Cruise Control RESUME/ACCEL Switch
- PI85: Power Steering Pressure Switch (PSPS)
- PCM SPECIFIC OUTPUT CODES
- PO00: No Outputs
- PO01: Canister Purge
- PO02: Torque Converter Clutch (TCC)
- PO03: EGR Solenoid
- PO04: AIR Switch
- PO05: AIR Divert
- PO06: ISC Motor
- PO07: Cruise Control Vent
- PO08: Cruise Control Vacuum
- PO10: Shift "A"
- PO11: Shift "B"
- PO20: A/C Relay
- PO99: Cycle All Outputs
- PCM SPECIFIC OVERRIDE CODES
- PS00: No Overrides
- PS01: Torque Converter Clutch (TCC) Solenoid
- PS02: EGR Solenoid
- PS03: Idle Speed Control (ISC) Motor
- PS04: Injector Cutout (Power Balance)
- PS05: Fuel Pump Relay
- PS06: AIR System
- PS07: Cruise Control Servo
- PS08: Cooling Fan Speed
- PS09: Spark Advance
- PS10: Injector Flow
- PS11: Transaxle Shift
- PCM CLEAR CODES
- PCM SNAPSHOT
- PFI CHART C-1 - FUEL SYSTEM CHECK
- PFI CHART C-2, FUEL PRESSURE CHECK
- PFI CHART C-3 - FUEL PRESSURE & INJECTOR FLOW
- PFI CHART C-4 - INJECTOR RESISTANCE CHECK
- PFI CHART C-5 - POWER BALANCE TEST
- PFI CHART C-6 - FUEL LEAK/ODOR CHECK
- PFI CHART C-7 - IDLE SPEED CONTROL (ISC) CHECK
- POWERTRAIN CHART 1 - POWERTRAIN SYSTEM CHECK
- POWERTRAIN CHART 2 - PCM POWER & GROUND CHECK
- POWERTRAIN CHART 3 - POWERTRAIN GROUND CHECK
- POWERTRAIN CHART 4 - SERVICE ENGINE SOON LIGHT INOPERATIVE
- POWERTRAIN CHART 5 - SERVICE ENGINE SOON LIGHT ON (NO CODES PRESENT)
- POWERTRAIN CHART 6 - MULTIPLE PCM CODES
- POWERTRAIN CHART 7 - REAR OXYGEN SENSOR DIAGNOSIS
- POWERTRAIN CHART 8 - FRONT OXYGEN SENSOR DIAGNOSIS
- PCM CODE P012 - NO DISTRIBUTOR (TACH) SIGNAL
- Test Conditions
- Failure Conditions
- Action
- Note On Intermittents
- PCM CODE P013 - REAR OXYGEN SENSOR NOT READY
- PCM CODE P014 - SHORTED COOLANT SENSOR SIGNAL
- PCM CODE P015 - OPEN COOLANT SENSOR SIGNAL
- PCM CODE P016 - ALTERNATOR VOLTAGE OUT OF RANGE
- PCM CODE P017 - FRONT OXYGEN SENSOR NOT READY
- PCM CODE P019 - SHORTED FUEL PUMP FEEDBACK SIGNAL
- PCM CODE P020 - OPEN FUEL PUMP CIRCUIT (1 OF 3)
- Notes On Intermittents
- PCM CODE P020 - OPEN FUEL PUMP CIRCUIT (2 OF 3)
- PCM CODE P020 - OPEN FUEL PUMP CIRCUIT (3 OF 3)
- PCM CODE P021 - SHORTED TP SENSOR CKT (SIGNAL VOLTAGE HIGH)
- PCM CODE P022 - OPEN TP SENSOR CIRCUIT (SIGNAL VOLTAGE LOW)
- Test Conditions (Crank)
- Failure Conditions (Crank)
- Test Conditions (Run)
- Failure Conditions (Run)
- PCM CODE P024 - VEHICLE SPEED SENSOR (VSS) CIRCUIT PROBLEM
- PCM CODE P026 - SHORTED THROTTLE SWITCH CIRCUIT
- PCM CODE P027 - OPEN THROTTLE SWITCH SIGNAL
- PCM CODE P030 - ISC RPM OUT OF RANGE
- PCM CODE P031 - SHORTED MAP SENSOR CIRCUIT
- PCM CODE P032 - OPEN MAP SENSOR CIRCUIT
- Test Conditions (1)
- Test Conditions (2)
- PCM CODE P034 - MAP SENSOR SIGNAL TOO HIGH
- PCM CODE P037 - SHORTED INTAKE AIR TEMP (IAT) SENSOR SIGNAL
- PCM CODE P038 - OPEN INTAKE AIR TEMP (IAT) SENSOR SIGNAL
- PCM CODE P039 - TCC ENGAGEMENT PROBLEM (1 OF 5)
- PCM CODE P039 - TCC ENGAGEMENT PROBLEM (2 OF 5)
- PCM CODE P039 - TCC ENGAGEMENT PROBLEM (3 OF 5)
- PCM CODE P039 - TCC ENGAGEMENT PROBLEM (4 OF 5)
- PCM CODE P039 - TCC ENGAGEMENT PROBLEM (5 OF 5)
- Note On "No TCC Apply"
- Note On "TCC Applies W/Maximum Pressure, Harsh Apply"
- PCM CODE P040 - OPEN PSPS CIRCUIT
- PCM CODE P041 - NO CAM SENSOR SIGNAL
- PCM CODE P042 - FRONT OXYGEN SENSOR LEAN SIGNAL
- PCM CODE P043 - FRONT OXYGEN SENSOR RICH SIGNAL
- PCM CODE P044 - REAR OXYGEN SENSOR LEAN SIGNAL
- PCM CODE P045 - REAR OXYGEN SENSOR RICH SIGNAL
- PCM CODE P046 - FRONT-TO-REAR BANK FUELING IMBALANCE
- Description
- PCM CODE P048 - EGR SYSTEM FAULT
- PCM CODE P051 - PROM ERROR
- PCM CODE P052 - PCM MEMORY RESET
- PCM CODE P053 - DISTRIBUTOR SIGNAL INTERRUPT
- PCM CODE P055 - TP SENSOR OUT OF RANGE
- PCM CODE P056 - TRANSAXLE INPUT SPEED SENSOR CIRCUIT PROBLEM
- CODE P057, SHORTED TRANSAXLE TEMPERATURE SENSOR CIRCUIT
- PCM CODE P058 - PASS-KEY FUEL ENABLE PROBLEM
- PASS-Key Diagnosis
- PCM CODE P060 - CRUISE CONTROL WITH TRANSAXLE NOT IN DRIVE
- PCM CODE P061 - CRUISE CONTROL VENT SOLENOID PROBLEM
- PCM CODE P062 - CRUISE CONTROL VACUUM SOLENOID PROBLEM
- PCM CODE P063 - VEHICLE SPEED & SET SPEED DIFFERENCE TOO HIGH
- PCM CODE P064 - CRUISE CONTROL ENGAGED/ACCELERATION TOO HIGH
- PCM CODE P065 - CRUISE CONTROL SERVO POSITION SENSOR FAILURE
- PCM CODE P066 - ENGINE RPM TOO HIGH WITH CRUISE ENGAGED
- PCM CODE P067 - SET/COAST OR RESUME/ACCEL SWITCH SHORTED
- PCM CODE P068 - CRUISE CONTROL SERVO POSITION OUT OF RANGE
- PCM CODE P070 - INTERMITTENT TP SENSOR SIGNAL
- PCM CODE P071 - INTERMITTENT MAP SENSOR SIGNAL
- PCM CODE P073 - INTERMITTENT COOLANT TEMP SENSOR SIGNAL
- PCM CODE P074 - INTERMITTENT INTAKE AIR TEMP SENSOR SIGNAL
- PCM CODE P075 - VSS SIGNAL INTERRUPT
- PCM CODE P080 - FUEL SYSTEM RICH
- Possible Causes
- PCM CODE P092 - HEATED WINDSHIELD REQUEST PROBLEM
- PCM CODE P096 - TORQUE CONVERTER OVERSTRESS
- PCM CODE P097 - PARK/NEUTRAL-TO-DRIVE/REVERSE SHIFT AT HIGH THROTTLE ANGLE
- PCM CODE P098 - PARK/NEUTRAL-TO-DRIVE/REVERSE SHIFT WHILE IN ISC CONTROL RANGE
- PCM CODE P099 - CRUISE SERVO APPLIED NOT IN CRUISE
- SUMMARY
- DESCRIPTION & OPERATION
- ROAD-SENSING SUSPENSION (RSS)
- Position Sensors
- Accelerometers
- Vehicle Speed Sensor
- Lift/Dive Signal
- ELECTRONIC LEVEL CONTROL (ELC)
- SPEED-SENSITIVE STEERING (SSS)
- TRIM HEIGHT
- USING DIAGNOSTICS
- Entering Diagnostics
- Segment Check
- Diagnostic Code Display
- Select System Mode
- Select Test Type Mode
- Select Test Mode
- Exiting Diagnostics
- CALIBRATING RSS MODULE
- RSS SYSTEM CHECK
- NOTES ON INTERMITTENTS
- Description
- Notes On Flow Chart
- Test Conditions
- Fault Conditions
- Action Taken
- CODE S055 - RSS RESISTOR MODULE HOLD SIDE SHORT TO GROUND/OPEN
- Removal & Installation
- STRUT ASSEMBLY