GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
1996
🢒
Eldorado
🢒
Engine
🢒 Engine Controls - 4.0L and 4.6L
Engine
All Component Locator
Engine Controls Components
All Description and Operation
Air Induction System
Crankcase Ventilation System
Cruise Control
Electric Cooling Fan
Electronic Ignition (EI) System
Evaporative Emission Control System
Exhaust Gas Recirculation (EGR) System
Fuel Metering System
Fuel Supply System
Information Sensors
Knock Sensor (KS) System
Powertrain Control Module (PCM)
Powertrain Control Module Controlled Air Conditioning
Powertrain Control Module Controlled Messages
All Special Tools and Equipment
Special Tools
All Visual Identification
Engine Controls Connector End Views
Cleaning, Inspection, and Adjustment
Fuel System Cleaning
Diagnostic Procedures
Backfire
Crankcase Ventilation System Diagnosis
Cruise Control Diagnosis
Cuts Out, Misses
Data Link Connector Diagnosis
Detonation/Spark Knock
Dieseling, Run-On
EEPROM Diagnosis
Electric Cooling Fan Diagnosis
Electronic Ignition (EI) System Diagnosis
Engine Cranks But Does Not Run
Evaporative Emission Control System Diagnosis
Excessive Exhaust Emissions or Odors
Fuel Injector Balance Test
Fuel System Diagnosis
Fuel System Pressure Test
Fuel Tank Leak Check
Hard Start
Hesitation, Sag, Stumble
Lack of Power, Sluggishness, or Sponginess
PCM Message Diagnosis
Poor Fuel Economy
Powertrain Control Module Controlled Air Conditioning (A/C) Circuit Diagnosis
Powertrain Control Module Controlled Tachometer Diagnosis
Powertrain Control Module Diagnosis
Powertrain Control Power and Ground Check
Powertrain On Board Diagnostic (OBD) System Check
Restricted Exhaust System Check
Rough, Unstable, or Incorrect Idle and Stalling
Surges/Chuggles
Symptoms
Diagnostic Trouble Codes
DTC P0101 Mass Air Flow (MAF) Sensor Performance
DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency
DTC P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency
DTC P0106 Manifold Absolute Pressure (MAP) System Performance
DTC P0107 Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
DTC P0108 Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
DTC P0111 Intake Air Temperature (IAT) Sensor Performance
DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage
DTC P0116 Engine Coolant Temperature (ECT) Sensor Performance
DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
DTC P0120 TP System Performance
DTC P0121 TP Sensor Circuit Insufficient Activity
DTC P0122 Throttle Position (TP) Sensor Circuit Low Voltage
DTC P0123 Throttle Position (TP)Sensor Circuit High Voltage
DTC P0125 Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control
DTC P0131 HO2S Circuit Low Voltage Bank 1 Sensor 1
DTC P0132 HO2S Circuit High Voltage Bank 1 Sensor 1
DTC P0133 HO2S Slow Response Bank 1 Sensor 1
DTC P0134 HO2S Circuit Insufficient Activity Bank 1 Sensor 1
DTC P0135 HO2S Heater Performance Bank 1 Sensor 1
DTC P0137 HO2S Circuit Low Voltage Bank 1 Sensor 2
DTC P0138 HO2S Circuit High Voltage Bank 1 Sensor 2
DTC P0139 HO2S Slow Response Bank 1 Sensor 2
DTC P0140 HO2S Circuit Insufficient Activity Bank 1 Sensor 2
DTC P0141 HO2S Heater Performance Bank 1 Sensor 2
DTC P0143 HO2S Circuit Low Voltage Bank 1 Sensor 3
DTC P0144 HO2S Circuit High Voltage Bank 1 Sensor 3
DTC P0146 HO2S Circuit Insufficient Activity Bank 1 Sensor 3
DTC P0147 HO2S Heater Performance Bank 1 Sensor 3
DTC P0151 HO2S Circuit Low Voltage Bank 2 Sensor 1
DTC P0152 HO2S Circuit High Voltage Bank 2 Sensor 1
DTC P0153 HO2S Slow Response Bank 2 Sensor 1
DTC P0154 HO2S Circuit Insufficient Activity Bank 2 Sensor 1
DTC P0155 HO2S Heater Performance Bank 2 Sensor 1
DTC P0171 Fuel Trim System Lean Bank 1
DTC P0172 Fuel Trim System Rich Bank 1
DTC P0174 Fuel Trim System Lean Bank 2
DTC P0175 Fuel Trim System Rich Bank 2
DTC P0201 Injector 1 Control Circuit
DTC P0202 Injector 2 Control Circuit
DTC P0203 Injector 3 Control Circuit
DTC P0204 Injector 4 Control Circuit
DTC P0205 Injector 5 Control Circuit
DTC P0206 Injector 6 Control Circuit
DTC P0207 Injector 7 Control Circuit
DTC P0208 Injector 8 Control Circuit
DTC P0231 Fuel Pump Feedback Circuit Low Voltage
DTC P0232 Fuel Pump Feedback Circuit High Voltage
DTC P0300 Engine Misfire Detected
DTC P0322 IC Module 4X Reference CKT No Frequency
DTC P0325 Knock Sensor Module Performance
DTC P0326 Knock Sensor CKT Excessive Spark Retard
DTC P0327 Knock Sensor Circuit Low Voltage
DTC P0340 IC Module Cam Reference CKT No Frequency
DTC P0371 IC 24X Reference CKT Too Many Pulses
DTC P0372 IC 24X Reference Circuit Missing Pulses
DTC P0401 Exhaust Gas Recirculation (EGR) Flow Insufficient
DTC P0420 Catalyst System Low Efficiency
DTC P0441 Evaporative Emission (EVAP) System No Flow During Purge
DTC P0506 Idle Speed Low
DTC P0507 Idle Speed High
DTC P0550 Power Steering Pressure (PSP) Switch Circuit
DTC P0560 System Voltage
DTC P0563 System Voltage High
DTC P0601 Control Module Read Only Memory (ROM)
DTC P0602 Control Module Not Programmed
DTC P0603 Control Module Long Term Memory Reset
DTC P0606 Control Module Internal Performance
DTC P1106 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage
DTC P1107 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage
DTC P1108 BARO to MAP Sensor Comparison Too High
DTC P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
DTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage
DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage
DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage
DTC P1121 Throttle Position (TP) Sensor Circuit Intermittent High Voltage
DTC P1122 Throttle Position (TP) Sensor Circuit Intermittent Low Voltage
DTC P1133 HO2S Insufficient Switching Bank 1 Sensor 1
DTC P1134 HO2S Transition Time Ratio Bank 1 Sensor 1
DTC P1139 HO2S Insufficient Switching Bank 1 Sensor 2
DTC P1140 HO2S Transition Time Ratio Bank 1 Sensor 2
DTC P1153 HO2S Insufficient Switching Bank 2 Sensor 1
DTC P1154 HO2S Transition Time Ratio Bank 2 Sensor 1
DTC P1258 Engine Coolant Overtemperature - Protection Mode Active
DTC P1320 IC 4X Reference Circuit Intermittent
DTC P1323 IC 24X Reference Circuit Low Frequency
DTC P1350 Ignition Control System
DTC P1370 IC 4X Reference Circuit Too Many Pulses
DTC P1371 IC 4X Reference Circuit Too Few Pulses
DTC P1375 IC 24X Reference Circuit High Voltage
DTC P1376 Ignition Ground Circuit
DTC P1377 IC Cam Pulse To 4X Reference Pulse
DTC P1380 Misfire Detected - Rough Road Data Not Available
DTC P1381 Misfire Detected - No Communication with Brake Control Module
DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance
DTC P1441 Evaporative Emission (EVAP) System Flow During Non-Purge
DTC P1508 Idle Speed Low - Idle Air Control (IAC) System Not Responding
DTC P1509 Idle Speed High - Idle Air Control (IAC) System Not Responding
DTC P1520 Transmission Range Switch Circuit
DTC P1524 Throttle Closed Position Performance
DTC P1526 Minimum Throttle Position Not Learned
DTC P1554 Cruise Control Feedback Circuit
DTC P1560 Transaxle Not in Drive - Cruise Control Disabled
DTC P1564 Vehicle Acceleration Too High - Cruise Control Disabled
DTC P1566 Engine RPM Too High - Cruise Control Disabled
DTC P1570 Traction Control Active - Cruise Control Disabled
DTC P1571 Traction Control Torque Request Circuit
DTC P1574 Stoplamp Switch Circuit
DTC P1575 Extended Travel Brake Switch Circuit
DTC P1576 BBVSensor Circuit High Voltage
DTC P1577 BBV Sensor Circuit Low Voltage
DTC P1578 BBV Sensor Circuit Low Vacuum
DTC P1579 P/N to D/R at High Throttle Angle - Power Reduction Mode Active
DTC P1599 Engine Stall or Near Stall Detected
DTC P1602 Loss of EBTCM Serial Data
DTC P1603 Loss of SDM Serial Data
DTC P1604 Loss of IPC Serial Data
DTC P1605 Loss of HVAC Serial Data
DTC P1610 Loss of PZM Serial Data
DTC P1611 Loss of CVRTD Serial Data
DTC P1621 Control Module Long Term Memory Performance
DTC P1626 Theft Deterrent Fuel Enable Signal Lost
DTC P1630 Theft Deterrent Learn Mode Active
DTC P1631 Theft Deterrent Start Enable Signal Not Correct
DTC P1632 Theft Deterrent Fuel Disable Signal Received
DTC P1633 Ignition 0 Switch Circuit
DTC P1634 Ignition 1 Switch Circuit
DTC P1640 Driver-1-Input High Voltage
DTC P1641 Malfunction Indicator Lamp (MIL) Control Circuit
DTC P1642 Vehicle Speed Output Circuit
DTC P1644 Traction Control Delivered Torque Output Circuit
DTC P1645 Evaporative Emission (EVAP) Purge Solenoid Control Circuit
DTC P1650 Control Module Output B Circuit
DTC P1652 Powertrain Induced Chassis Pitch Output Circuit
DTC P1654 Cruise Control Inhibit Output Circuit
DTC P1660 Cooling Fan Control Circuits
Electrical/Electronic Schematic Diagrams
Engine Controls Schematic Icons
Engine Controls Schematic References
Engine Controls Schematics
Electrical/Electronic Specifications
Temperature Versus Resistance
General Diagnostic Information
Strategy Based Diagnostic Flow
Mechanical Specifications
Fastener Tightening Specifications
Other Specifications
Engine Scan Tool Data Definitions
Engine Scan Tool Data List
Removal, Installation, and Replacement
Accelerator Controls
Air Cleaner Element
Air Filter Element and Air Cleaner Assembly
Camshaft Position Sensor Replacement
Crankshaft Position Sensor Replacement
Engine Coolant Temperature Sensor Replacement
Evaporative Emission Canister Hoses
Evaporative Emission Canister Purge Solenoid
Evaporative Emission Canister Replacement
Evaporative Emission Purge Vacuum Switch Replacement
Exhaust Gas Recirculation Valve Replacement
Fuel Hose and Pipes
Fuel Injection Fuel Rail Assembly Replacement
Fuel Injector Replacement
Fuel Pressure Regulator Replacement
Fuel Pressure Relief
Fuel Pump Relay Replacement
Fuel Sender Assembly Replacement
Fuel Tank Replacement
Heated Oxygen Sensor Replacement
Idle Air Control Valve Replacement
Ignition Control Module Replacement
In-Line Fuel Filter Replacement
Intake Air Temperature Sensor Replacement
Knock Sensor Module Replacement
Knock Sensor Replacement
Manifold Absolute Pressure Sensor Replacement
Mass Airflow Sensor Replacement
Powertrain Control Module Replacement/Programming
Servicing Quick Connect Fittings
Throttle Body Assembly Replacement
Throttle Position Sensor Replacement