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Repair manual

Engine Controls - Tests W/codes - PCM Cadillac Seville IV

Step-by-step instructions on "Engine Controls - Tests W/codes - PCM" for Cadillac Seville IV (1992–1997). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

165subsections

165articles

171illustrations

INTRODUCTION

1 article

• INTRODUCTION

SELF-DIAGNOSTIC SYSTEM

1 article

• SELF-DIAGNOSTIC SYSTEM

ENTERING SELF-DIAGNOSTICS

1 article

• ENTERING SELF-DIAGNOSTICS

DISPLAYING TROUBLE CODES

1 article

• DISPLAYING TROUBLE CODES

STATUS LIGHTS DISPLAY

1 article

• STATUS LIGHTS DISPLAY 1

SERVICE MODE OPERATION

1 article

• SERVICE MODE OPERATION

Selecting System Level

1 article

• Selecting System Level

Selecting Test Type Level

1 article

• Selecting Test Type Level

Selecting Clear Codes

1 article

• Selecting Clear Codes 1

PCM LOCATION

1 article

• PCM LOCATION

PD01: Throttle Position (TP) Sensor

1 article

• PD01: Throttle Position (TP) Sensor

PD02: Manifold Air Pressure (MAP)

1 article

• PD02: Manifold Air Pressure (MAP)

PD03: Computed Barometric Pressure (BARO)

1 article

• PD03: Computed Barometric Pressure (BARO)

PD04: Coolant Temperature Sensor (CTS)

1 article

• PD04: Coolant Temperature Sensor (CTS)

PD05: Intake Air Temperature (IAT) Sensor

1 article

• PD05: Intake Air Temperature (IAT) Sensor

PD08: Spark Advance

1 article

• PD08: Spark Advance

PD10: Battery State Of Charge

1 article

• PD10: Battery State Of Charge

PD11: Engine Speed (RPM)

1 article

• PD11: Engine Speed (RPM)

PD12: Vehicle Speed (MPH)

1 article

• PD12: Vehicle Speed (MPH)

PD30: Front Bank Injector Pulse Width

1 article

• PD30: Front Bank Injector Pulse Width

PD31: Rear Bank Injector Pulse Width

1 article

• PD31: Rear Bank Injector Pulse Width

PD32: Front Oxygen Sensor Voltage

1 article

• PD32: Front Oxygen Sensor Voltage

PD33: Rear Oxygen Sensor Voltage

1 article

• PD33: Rear Oxygen Sensor Voltage

PD34: Front Oxygen Sensor Cross Counts

1 article

• PD34: Front Oxygen Sensor Cross Counts

PD35: Rear Oxygen Sensor Cross Counts

1 article

• PD35: Rear Oxygen Sensor Cross Counts

PD36: Front Bank Short Term Fuel Trim

1 article

• PD36: Front Bank Short Term Fuel Trim

PD37: Rear Bank Short Term Fuel Trim

1 article

• PD37: Rear Bank Short Term Fuel Trim

PD38: Front Bank Long Term Fuel Trim

1 article

• PD38: Front Bank Long Term Fuel Trim

PD39: Rear Bank Long Term Fuel Trim

1 article

• PD39: Rear Bank Long Term Fuel Trim

PD70: Cruise Control Feedback

1 article

• PD70: Cruise Control Feedback

PD71: PRNDL 1 Status

1 article

• PD71: PRNDL 1 Status

PD72: PRNDL 2 Status

1 article

• PD72: PRNDL 2 Status

PD98: Ignition Cycle Counter

1 article

• PD98: Ignition Cycle Counter

PD99: PCM Programmable Read Only Memory (PROM) Identification Code

1 article

• PD99: PCM Programmable Read Only Memory (PROM) Identification Code

PCM SPECIFIC INPUT CODES

1 article

• PCM SPECIFIC INPUT CODES

PI70: Cruise Control Brake Switch

1 article

• PI70: Cruise Control Brake Switch

PI71: Torque Converter Clutch (TCC) Brake Switch

1 article

• PI71: Torque Converter Clutch (TCC) Brake Switch

PI72: Throttle Switch

1 article

• PI72: Throttle Switch

PI79

1 article

• PI79

PI82: Cruise Control ON/OFF Switch

1 article

• PI82: Cruise Control ON/OFF Switch

PI83: Cruise Control SET/COAST Switch

1 article

• PI83: Cruise Control SET/COAST Switch

PI84: Cruise Control RESUME/ACCEL Switch

1 article

• PI84: Cruise Control RESUME/ACCEL Switch

PI85: Power Steering Pressure Switch (PSPS)

1 article

• PI85: Power Steering Pressure Switch (PSPS) 1

PCM SPECIFIC OUTPUT CODES

1 article

• PCM SPECIFIC OUTPUT CODES

PO00: No Outputs

1 article

• PO00: No Outputs

PO01: Canister Purge

1 article

• PO01: Canister Purge

PO02: Torque Converter Clutch (TCC)

1 article

• PO02: Torque Converter Clutch (TCC)

PO03: EGR Solenoid

1 article

• PO03: EGR Solenoid

PO04: AIR Switch

1 article

• PO04: AIR Switch

PO05: AIR Divert

1 article

• PO05: AIR Divert

PO06: ISC Motor

1 article

• PO06: ISC Motor

PO07: Cruise Control Vent

1 article

• PO07: Cruise Control Vent

PO08: Cruise Control Vacuum

1 article

• PO08: Cruise Control Vacuum

PO10: Shift "A"

1 article

• PO10: Shift "A"

PO11: Shift "B"

1 article

• PO11: Shift "B"

PO20: A/C Relay

1 article

• PO20: A/C Relay

PO99: Cycle All Outputs

1 article

• PO99: Cycle All Outputs

PCM SPECIFIC OVERRIDE CODES

1 article

• PCM SPECIFIC OVERRIDE CODES

PS00: No Overrides

1 article

• PS00: No Overrides

PS01: Torque Converter Clutch (TCC) Solenoid

1 article

• PS01: Torque Converter Clutch (TCC) Solenoid

PS02: EGR Solenoid

1 article

• PS02: EGR Solenoid

PS03: Idle Speed Control (ISC) Motor

1 article

• PS03: Idle Speed Control (ISC) Motor

PS04: Injector Cutout (Power Balance)

1 article

• PS04: Injector Cutout (Power Balance)

PS05: Fuel Pump Relay

1 article

• PS05: Fuel Pump Relay

PS06: AIR System

1 article

• PS06: AIR System

PS07: Cruise Control Servo

1 article

• PS07: Cruise Control Servo

PS08: Cooling Fan Speed

1 article

• PS08: Cooling Fan Speed

PS09: Spark Advance

1 article

• PS09: Spark Advance

PS10: Injector Flow

1 article

• PS10: Injector Flow

PS11: Transaxle Shift

1 article

• PS11: Transaxle Shift

PCM CLEAR CODES

1 article

• PCM CLEAR CODES

PCM SNAPSHOT

1 article

• PCM SNAPSHOT

PFI CHART C-1 - FUEL SYSTEM CHECK

1 article

• PFI CHART C-1 - FUEL SYSTEM CHECK 2

PFI CHART C-2, FUEL PRESSURE CHECK

1 article

• PFI CHART C-2, FUEL PRESSURE CHECK 2

PFI CHART C-3 - FUEL PRESSURE & INJECTOR FLOW

1 article

• PFI CHART C-3 - FUEL PRESSURE & INJECTOR FLOW 2

PFI CHART C-4 - INJECTOR RESISTANCE CHECK

1 article

• PFI CHART C-4 - INJECTOR RESISTANCE CHECK 1

PFI CHART C-5 - POWER BALANCE TEST

1 article

• PFI CHART C-5 - POWER BALANCE TEST 1

PFI CHART C-6 - FUEL LEAK/ODOR CHECK

1 article

• PFI CHART C-6 - FUEL LEAK/ODOR CHECK 1

PFI CHART C-7 - IDLE SPEED CONTROL (ISC) CHECK

1 article

• PFI CHART C-7 - IDLE SPEED CONTROL (ISC) CHECK 2

POWERTRAIN CHART 1 - POWERTRAIN SYSTEM CHECK

1 article

• POWERTRAIN CHART 1 - POWERTRAIN SYSTEM CHECK 2

POWERTRAIN CHART 2 - PCM POWER & GROUND CHECK

1 article

• POWERTRAIN CHART 2 - PCM POWER & GROUND CHECK 1

POWERTRAIN CHART 3 - POWERTRAIN GROUND CHECK

1 article

• POWERTRAIN CHART 3 - POWERTRAIN GROUND CHECK 4

POWERTRAIN CHART 4 - SERVICE ENGINE SOON LIGHT INOPERATIVE

1 article

• POWERTRAIN CHART 4 - SERVICE ENGINE SOON LIGHT INOPERATIVE 1

POWERTRAIN CHART 5 - SERVICE ENGINE SOON LIGHT ON (NO CODES PRESENT)

1 article

• POWERTRAIN CHART 5 - SERVICE ENGINE SOON LIGHT ON (NO CODES PRESENT) 1

POWERTRAIN CHART 6 - MULTIPLE PCM CODES

1 article

• POWERTRAIN CHART 6 - MULTIPLE PCM CODES 2

POWERTRAIN CHART 7 - REAR OXYGEN SENSOR DIAGNOSIS

1 article

• POWERTRAIN CHART 7 - REAR OXYGEN SENSOR DIAGNOSIS 2

POWERTRAIN CHART 8 - FRONT OXYGEN SENSOR DIAGNOSIS

1 article

• POWERTRAIN CHART 8 - FRONT OXYGEN SENSOR DIAGNOSIS 1

PCM CODE P012 - NO DISTRIBUTOR (TACH) SIGNAL

1 article

• PCM CODE P012 - NO DISTRIBUTOR (TACH) SIGNAL

Test Conditions

1 article

• Test Conditions

Failure Conditions

1 article

• Failure Conditions

Action

1 article

• Action

Note On Intermittents

1 article

• Note On Intermittents 2

PCM CODE P013 - REAR OXYGEN SENSOR NOT READY

1 article

• PCM CODE P013 - REAR OXYGEN SENSOR NOT READY 2

PCM CODE P014 - SHORTED COOLANT SENSOR SIGNAL

1 article

• PCM CODE P014 - SHORTED COOLANT SENSOR SIGNAL 2

PCM CODE P015 - OPEN COOLANT SENSOR SIGNAL

1 article

• PCM CODE P015 - OPEN COOLANT SENSOR SIGNAL 1

PCM CODE P016 - ALTERNATOR VOLTAGE OUT OF RANGE

1 article

• PCM CODE P016 - ALTERNATOR VOLTAGE OUT OF RANGE 2

PCM CODE P017 - FRONT OXYGEN SENSOR NOT READY

1 article

• PCM CODE P017 - FRONT OXYGEN SENSOR NOT READY 1

PCM CODE P019 - SHORTED FUEL PUMP FEEDBACK SIGNAL

1 article

• PCM CODE P019 - SHORTED FUEL PUMP FEEDBACK SIGNAL 2

PCM CODE P020 - OPEN FUEL PUMP CIRCUIT (1 OF 3)

1 article

• PCM CODE P020 - OPEN FUEL PUMP CIRCUIT (1 OF 3)

Notes On Intermittents

1 article

• Notes On Intermittents 1

PCM CODE P020 - OPEN FUEL PUMP CIRCUIT (2 OF 3)

1 article

• PCM CODE P020 - OPEN FUEL PUMP CIRCUIT (2 OF 3) 1

PCM CODE P020 - OPEN FUEL PUMP CIRCUIT (3 OF 3)

1 article

• PCM CODE P020 - OPEN FUEL PUMP CIRCUIT (3 OF 3) 1

PCM CODE P021 - SHORTED TP SENSOR CKT (SIGNAL VOLTAGE HIGH)

1 article

• PCM CODE P021 - SHORTED TP SENSOR CKT (SIGNAL VOLTAGE HIGH) 1

PCM CODE P022 - OPEN TP SENSOR CIRCUIT (SIGNAL VOLTAGE LOW)

1 article

• PCM CODE P022 - OPEN TP SENSOR CIRCUIT (SIGNAL VOLTAGE LOW) 1

Test Conditions (Crank)

1 article

• Test Conditions (Crank)

Failure Conditions (Crank)

1 article

• Failure Conditions (Crank)

Test Conditions (Run)

1 article

• Test Conditions (Run)

Failure Conditions (Run)

1 article

• Failure Conditions (Run) 2

PCM CODE P024 - VEHICLE SPEED SENSOR (VSS) CIRCUIT PROBLEM

1 article

• PCM CODE P024 - VEHICLE SPEED SENSOR (VSS) CIRCUIT PROBLEM 4

PCM CODE P026 - SHORTED THROTTLE SWITCH CIRCUIT

1 article

• PCM CODE P026 - SHORTED THROTTLE SWITCH CIRCUIT 2

PCM CODE P027 - OPEN THROTTLE SWITCH SIGNAL

1 article

• PCM CODE P027 - OPEN THROTTLE SWITCH SIGNAL 9

PCM CODE P030 - ISC RPM OUT OF RANGE

1 article

• PCM CODE P030 - ISC RPM OUT OF RANGE 2

PCM CODE P031 - SHORTED MAP SENSOR CIRCUIT

1 article

• PCM CODE P031 - SHORTED MAP SENSOR CIRCUIT 1

PCM CODE P032 - OPEN MAP SENSOR CIRCUIT

1 article

• PCM CODE P032 - OPEN MAP SENSOR CIRCUIT

Test Conditions (1)

1 article

• Test Conditions (1)

Test Conditions (2)

1 article

• Test Conditions (2) 3

PCM CODE P034 - MAP SENSOR SIGNAL TOO HIGH

1 article

• PCM CODE P034 - MAP SENSOR SIGNAL TOO HIGH 5

PCM CODE P037 - SHORTED INTAKE AIR TEMP (IAT) SENSOR SIGNAL

1 article

• PCM CODE P037 - SHORTED INTAKE AIR TEMP (IAT) SENSOR SIGNAL 1

PCM CODE P038 - OPEN INTAKE AIR TEMP (IAT) SENSOR SIGNAL

1 article

• PCM CODE P038 - OPEN INTAKE AIR TEMP (IAT) SENSOR SIGNAL 1

PCM CODE P039 - TCC ENGAGEMENT PROBLEM (1 OF 5)

1 article

• PCM CODE P039 - TCC ENGAGEMENT PROBLEM (1 OF 5) 2

PCM CODE P039 - TCC ENGAGEMENT PROBLEM (2 OF 5)

1 article

• PCM CODE P039 - TCC ENGAGEMENT PROBLEM (2 OF 5) 1

PCM CODE P039 - TCC ENGAGEMENT PROBLEM (3 OF 5)

1 article

• PCM CODE P039 - TCC ENGAGEMENT PROBLEM (3 OF 5) 1

PCM CODE P039 - TCC ENGAGEMENT PROBLEM (4 OF 5)

1 article

• PCM CODE P039 - TCC ENGAGEMENT PROBLEM (4 OF 5) 1

PCM CODE P039 - TCC ENGAGEMENT PROBLEM (5 OF 5)

1 article

• PCM CODE P039 - TCC ENGAGEMENT PROBLEM (5 OF 5)

Note On "No TCC Apply"

1 article

• Note On "No TCC Apply"

Note On "TCC Applies W/Maximum Pressure, Harsh Apply"

1 article

• Note On "TCC Applies W/Maximum Pressure, Harsh Apply" 1

PCM CODE P040 - OPEN PSPS CIRCUIT

1 article

• PCM CODE P040 - OPEN PSPS CIRCUIT 2

PCM CODE P041 - NO CAM SENSOR SIGNAL

1 article

• PCM CODE P041 - NO CAM SENSOR SIGNAL 2

PCM CODE P042 - FRONT OXYGEN SENSOR LEAN SIGNAL

1 article

• PCM CODE P042 - FRONT OXYGEN SENSOR LEAN SIGNAL 1

PCM CODE P043 - FRONT OXYGEN SENSOR RICH SIGNAL

1 article

• PCM CODE P043 - FRONT OXYGEN SENSOR RICH SIGNAL 1

PCM CODE P044 - REAR OXYGEN SENSOR LEAN SIGNAL

1 article

• PCM CODE P044 - REAR OXYGEN SENSOR LEAN SIGNAL 1

PCM CODE P045 - REAR OXYGEN SENSOR RICH SIGNAL

1 article

• PCM CODE P045 - REAR OXYGEN SENSOR RICH SIGNAL 1

PCM CODE P046 - FRONT-TO-REAR BANK FUELING IMBALANCE

1 article

• PCM CODE P046 - FRONT-TO-REAR BANK FUELING IMBALANCE 2

Description

1 article

• Description

PCM CODE P048 - EGR SYSTEM FAULT

1 article

• PCM CODE P048 - EGR SYSTEM FAULT 2

PCM CODE P051 - PROM ERROR

1 article

• PCM CODE P051 - PROM ERROR

PCM CODE P052 - PCM MEMORY RESET

1 article

• PCM CODE P052 - PCM MEMORY RESET

PCM CODE P053 - DISTRIBUTOR SIGNAL INTERRUPT

1 article

• PCM CODE P053 - DISTRIBUTOR SIGNAL INTERRUPT 1

PCM CODE P055 - TP SENSOR OUT OF RANGE

1 article

• PCM CODE P055 - TP SENSOR OUT OF RANGE 1

PCM CODE P056 - TRANSAXLE INPUT SPEED SENSOR CIRCUIT PROBLEM

1 article

• PCM CODE P056 - TRANSAXLE INPUT SPEED SENSOR CIRCUIT PROBLEM 2

CODE P057, SHORTED TRANSAXLE TEMPERATURE SENSOR CIRCUIT

1 article

• CODE P057, SHORTED TRANSAXLE TEMPERATURE SENSOR CIRCUIT 3

PCM CODE P058 - PASS-KEY FUEL ENABLE PROBLEM

1 article

• PCM CODE P058 - PASS-KEY FUEL ENABLE PROBLEM

PASS-Key Diagnosis

1 article

• PASS-Key Diagnosis 1

PCM CODE P060 - CRUISE CONTROL WITH TRANSAXLE NOT IN DRIVE

1 article

• PCM CODE P060 - CRUISE CONTROL WITH TRANSAXLE NOT IN DRIVE 1

PCM CODE P061 - CRUISE CONTROL VENT SOLENOID PROBLEM

1 article

• PCM CODE P061 - CRUISE CONTROL VENT SOLENOID PROBLEM 2

PCM CODE P062 - CRUISE CONTROL VACUUM SOLENOID PROBLEM

1 article

• PCM CODE P062 - CRUISE CONTROL VACUUM SOLENOID PROBLEM 1

PCM CODE P063 - VEHICLE SPEED & SET SPEED DIFFERENCE TOO HIGH

1 article

• PCM CODE P063 - VEHICLE SPEED & SET SPEED DIFFERENCE TOO HIGH 1

PCM CODE P064 - CRUISE CONTROL ENGAGED/ACCELERATION TOO HIGH

1 article

• PCM CODE P064 - CRUISE CONTROL ENGAGED/ACCELERATION TOO HIGH

PCM CODE P065 - CRUISE CONTROL SERVO POSITION SENSOR FAILURE

1 article

• PCM CODE P065 - CRUISE CONTROL SERVO POSITION SENSOR FAILURE 1

PCM CODE P066 - ENGINE RPM TOO HIGH WITH CRUISE ENGAGED

1 article

• PCM CODE P066 - ENGINE RPM TOO HIGH WITH CRUISE ENGAGED

PCM CODE P067 - SET/COAST OR RESUME/ACCEL SWITCH SHORTED

1 article

• PCM CODE P067 - SET/COAST OR RESUME/ACCEL SWITCH SHORTED 1

PCM CODE P068 - CRUISE CONTROL SERVO POSITION OUT OF RANGE

1 article

• PCM CODE P068 - CRUISE CONTROL SERVO POSITION OUT OF RANGE 3

PCM CODE P070 - INTERMITTENT TP SENSOR SIGNAL

1 article

• PCM CODE P070 - INTERMITTENT TP SENSOR SIGNAL 1

PCM CODE P071 - INTERMITTENT MAP SENSOR SIGNAL

1 article

• PCM CODE P071 - INTERMITTENT MAP SENSOR SIGNAL 1

PCM CODE P073 - INTERMITTENT COOLANT TEMP SENSOR SIGNAL

1 article

• PCM CODE P073 - INTERMITTENT COOLANT TEMP SENSOR SIGNAL 1

PCM CODE P074 - INTERMITTENT INTAKE AIR TEMP SENSOR SIGNAL

1 article

• PCM CODE P074 - INTERMITTENT INTAKE AIR TEMP SENSOR SIGNAL 1

PCM CODE P075 - VSS SIGNAL INTERRUPT

1 article

• PCM CODE P075 - VSS SIGNAL INTERRUPT 3

PCM CODE P080 - FUEL SYSTEM RICH

1 article

• PCM CODE P080 - FUEL SYSTEM RICH

Possible Causes

1 article

• Possible Causes 19

PCM CODE P092 - HEATED WINDSHIELD REQUEST PROBLEM

1 article

• PCM CODE P092 - HEATED WINDSHIELD REQUEST PROBLEM 10

PCM CODE P096 - TORQUE CONVERTER OVERSTRESS

1 article

• PCM CODE P096 - TORQUE CONVERTER OVERSTRESS

PCM CODE P097 - PARK/NEUTRAL-TO-DRIVE/REVERSE SHIFT AT HIGH THROTTLE ANGLE

1 article

• 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

1 article

• PCM CODE P098 - PARK/NEUTRAL-TO-DRIVE/REVERSE SHIFT WHILE IN ISC CONTROL RANGE

PCM CODE P099 - CRUISE SERVO APPLIED NOT IN CRUISE

1 article

• PCM CODE P099 - CRUISE SERVO APPLIED NOT IN CRUISE 24

SUMMARY

1 article

• SUMMARY