Town Car V8-4.6L SOHC VIN W (1999): Powertrain Management

Also for this vehicle: Town Car V8-281 4.6L SOHC (1991), Town Car V8-302 5.0L (1987), Town Car V8-4.6L (2008), Town Car V8-4.6L VIN V Flex Fuel (2006), Town Car V8-4.6L VIN W (1997), Town Car Factory Service Manual (2007).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

01Diagnostic Trouble Codes (DTC)Diagnostic Trouble Codes (DTC): Sections
02Relays and Modules Relays and Modules: Sections
03Sensors and Switches Sensors and Switches: Sections
04Maintenance Maintenance: Sections
05Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
06Powertrain Management Powertrain Management: Sections
- Relays and Modules - Powertrain Management50 pages
  - Relays and Modules - Computers and Control Systems42 pages
    Powertrain Control Module <--> [Engine Control Module] › Component Information39 pages
    Technical Service Bulletins18 pages
    Customer Interest: › 02-23-4 › Nov › 02 › Engine Controls - DTC P1635 Set After PCM/IC Replacement2 3 4
    All Technical Service Bulletins for Powertrain Control Module:9 pages
    04-24-14 › Dec › 04 › Engine Controls - General PCM Programming Procedures2 3
    02-23-4 › Nov › 02 › Engine Controls - DTC P1635 Set After PCM/IC Replacement2 3 4
    99-4-3 › Mar › 99 › PCM - Reprogramming Out of Vehicle2
    All Other Service Bulletins for Powertrain Control Module:5 pages
    04-24-14 › Dec › 04 › Engine Controls - General PCM Programming Procedures2 3
    99-4-3 › Mar › 99 › PCM - Reprogramming Out of Vehicle2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
    Service and Repair › Procedures2 3 4
    Main Relay (Computer/Fuel System) › Component Information3 pages
    Locations
    Testing and Inspection › PCM Power Relay2
  - Relays and Modules - Fuel Delivery and Air Induction6 pages
    Fuel Pump Relay › Component Information › Locations2 3
    Main Relay (Computer/Fuel System) › Component Information3 pages
    Locations
    Testing and Inspection › PCM Power Relay2
  - Relays and Modules - Ignition System › Ignition Control Module › Component Information › Locations2
- Sensors and Switches - Powertrain Management122 pages
  - Sensors and Switches - Computers and Control Systems87 pages
    Air Flow Meter/Sensor › Component Information › Technical Service Bulletins6 pages
    All Technical Service Bulletins for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    Customer Interest for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    Camshaft Position Sensor › Component Information › Specifications2 3
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications
    Crankshaft Position Sensor › Component Information › Specifications2 3 4
    Engine Temperature Sensor › Component Information › Specifications2 3 4
    Fuel Tank Pressure Sensor › Component Information › Description and Operation2
    Intake Air Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information › Description and Operation
    Knock Sensor › Component Information › Specifications2 3
    Oxygen Sensor › Component Information35 pages
    Technical Service Bulletins › Emissions/Engine Controls - Driveability Diagnosis2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Service and Repair › Front2 3 4
    Pressure Feedback Exhaust Sensor, EGR › Component Information › Specifications2 3 4
    Throttle Position Sensor › Component Information › Specifications2 3 4
    Transmission Position Switch/Sensor, A/T › Component Information › Specifications2 3 4 5
    Vehicle Speed Sensor › Component Information15 pages
    Specifications
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14
  - Sensors and Switches - Emission Control Systems › Pressure Feedback Exhaust Sensor, EGR › Component Information › Specifications2 3 4
  - Sensors and Switches - Fuel Delivery and Air Induction12 pages
    Air Flow Meter/Sensor › Component Information › Technical Service Bulletins6 pages
    Customer Interest for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    All Technical Service Bulletins for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    Inertia Fuel Shutoff Switch › Component Information › Specifications2
    Throttle Position Sensor › Component Information › Specifications2 3 4
  - Sensors and Switches - Ignition System19 pages
    Camshaft Position Sensor › Component Information › Specifications2 3
    Crankshaft Position Sensor › Component Information › Specifications2 3 4
    Ignition Switch › Ignition Switch Lock Cylinder › Component Information9 pages
    Technical Service Bulletins › Locks - Lock Service Packages Available2 3 4 5 6
    Service and Repair › Fucntional Lock Cylinder2 3
    Knock Sensor › Component Information › Specifications2 3
- Tune-up and Engine Performance Checks14 pages
- Computers and Control Systems346 pages
  - Air Flow Meter/Sensor › Component Information › Technical Service Bulletins6 pages
    All Technical Service Bulletins for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    Customer Interest for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
  - Intake Air Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information › Description and Operation
  - Brake Signal › Component Information › Diagrams
  - Camshaft Position Sensor › Component Information › Specifications2 3
  - Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications
  - Crankshaft Position Sensor › Component Information › Specifications2 3 4
  - Data Link Connector › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Powertrain Control Module <--> [Engine Control Module] › Component Information39 pages
    Technical Service Bulletins18 pages
    Customer Interest: › 02-23-4 › Nov › 02 › Engine Controls - DTC P1635 Set After PCM/IC Replacement2 3 4
    All Technical Service Bulletins for Powertrain Control Module:9 pages
    04-24-14 › Dec › 04 › Engine Controls - General PCM Programming Procedures2 3
    02-23-4 › Nov › 02 › Engine Controls - DTC P1635 Set After PCM/IC Replacement2 3 4
    99-4-3 › Mar › 99 › PCM - Reprogramming Out of Vehicle2
    All Other Service Bulletins for Powertrain Control Module:5 pages
    04-24-14 › Dec › 04 › Engine Controls - General PCM Programming Procedures2 3
    99-4-3 › Mar › 99 › PCM - Reprogramming Out of Vehicle2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
    Service and Repair › Procedures2 3 4
  - Engine Temperature Sensor › Component Information › Specifications2 3 4
  - Fuel Tank Pressure Sensor › Component Information › Description and Operation2
  - Idle Speed/Throttle Actuator - Electronic › Component Information › Specifications2 3 4
  - Multiplex Communication Network <--> [Information Bus] › Component Information68 pages
    Specifications
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
    Description and Operation › Communication Network2 3
    Testing and Inspection › Flow of Diagnosis2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…47
  - Knock Sensor › Component Information › Specifications2 3
  - Main Relay (Computer/Fuel System) › Component Information3 pages
    Locations
    Testing and Inspection › PCM Power Relay2
  - Oxygen Sensor › Component Information35 pages
    Technical Service Bulletins › Emissions/Engine Controls - Driveability Diagnosis2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Service and Repair › Front2 3 4
  - Pressure Feedback Exhaust Sensor, EGR › Component Information › Specifications2 3 4
  - Relays and Modules - Computers and Control Systems42 pages
    Powertrain Control Module <--> [Engine Control Module] › Component Information39 pages
    Technical Service Bulletins18 pages
    All Technical Service Bulletins for Powertrain Control Module:9 pages
    04-24-14 › Dec › 04 › Engine Controls - General PCM Programming Procedures2 3
    02-23-4 › Nov › 02 › Engine Controls - DTC P1635 Set After PCM/IC Replacement2 3 4
    99-4-3 › Mar › 99 › PCM - Reprogramming Out of Vehicle2
    Customer Interest: › 02-23-4 › Nov › 02 › Engine Controls - DTC P1635 Set After PCM/IC Replacement2 3 4
    All Other Service Bulletins for Powertrain Control Module:5 pages
    04-24-14 › Dec › 04 › Engine Controls - General PCM Programming Procedures2 3
    99-4-3 › Mar › 99 › PCM - Reprogramming Out of Vehicle2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
    Service and Repair › Procedures2 3 4
    Main Relay (Computer/Fuel System) › Component Information3 pages
    Locations
    Testing and Inspection › PCM Power Relay2
  - Sensors and Switches - Computers and Control Systems87 pages
    Air Flow Meter/Sensor › Component Information › Technical Service Bulletins6 pages
    Customer Interest for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    All Technical Service Bulletins for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    Camshaft Position Sensor › Component Information › Specifications2 3
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications
    Crankshaft Position Sensor › Component Information › Specifications2 3 4
    Engine Temperature Sensor › Component Information › Specifications2 3 4
    Fuel Tank Pressure Sensor › Component Information › Description and Operation2
    Intake Air Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information › Description and Operation
    Knock Sensor › Component Information › Specifications2 3
    Oxygen Sensor › Component Information35 pages
    Technical Service Bulletins › Emissions/Engine Controls - Driveability Diagnosis2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Service and Repair › Front2 3 4
    Pressure Feedback Exhaust Sensor, EGR › Component Information › Specifications2 3 4
    Throttle Position Sensor › Component Information › Specifications2 3 4
    Transmission Position Switch/Sensor, A/T › Component Information › Specifications2 3 4 5
    Vehicle Speed Sensor › Component Information15 pages
    Specifications
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14
  - Throttle Position Sensor › Component Information › Specifications2 3 4
  - Transmission Position Switch/Sensor, A/T › Component Information › Specifications2 3 4 5
  - Vehicle Speed Sensor › Component Information15 pages
    Specifications
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14
- Emission Control Systems56 pages
- Fuel Delivery and Air Induction146 pages
  - Fuel Pressure › Fuel Pressure Test Port › Component Information › Specifications2
  - Fuel Pressure Release › System Information › Service Precautions2
  - Idle Speed › System Information › Specifications
  - Accelerator Pedal › Component Information10 pages
    Specifications2
    Testing and Inspection › Flow of Diagnosis2 3
    Service and Repair › Accelerator Pedal and Shaft2 3 4 5
  - Air Cleaner Housing3 pages
    Air Cleaner Fresh Air Duct/Hose › Component Information › Service and Repair2
    Air Filter Element › Component Information › Service and Repair
  - Air Flow Meter/Sensor › Component Information › Technical Service Bulletins6 pages
    Customer Interest for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    All Technical Service Bulletins for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
  - Fuel › Component Information › Technical Service Bulletins › Fuel - Volatility Related Driveability Concerns2
  - Fuel Filler Cap › Component Information › Technical Service Bulletins12 pages
    Customer Interest for Fuel Filler Cap: › 03-20-3 › Oct › 03 › Emissions - MIL ON/DTC's Stored/Check Fuel Cap Lamp ON2 3 4 5 6
    All Technical Service Bulletins for Fuel Filler Cap: › 03-20-3 › Oct › 03 › Emissions - MIL ON/DTC's Stored/Check Fuel Cap Lamp ON2 3 4 5 6
  - Fuel Filter › Fuel Pressure Release › System Information › Service Precautions2
  - Fuel Injector › Fuel Injector Wiring Harness › Component Information › Service and Repair2 3 4 5 6 7 8
  - Fuel Line Coupler › Component Information9 pages
    Technical Service Bulletins2 pages
    Recalls for Fuel Line Coupler: › NHTSA87V139000 › Sep › 87 › Recall 87V139000: Fuel Line Coupling Retainer Clips
    All Technical Service Bulletins for Fuel Line Coupler: › NHTSA87V139000 › Sep › 87 › Recall 87V139000: Fuel Line Coupling Retainer Clips
    Service and Repair › Hair Pin Clip Fittings2 3 4 5 6 7
  - Fuel Pressure Regulator › Component Information › Description and Operation
  - Fuel Pressure Test Port › Component Information › Specifications2
  - Fuel Pump5 pages
    Fuel Pressure › Fuel Pressure Test Port › Component Information › Specifications2
    Fuel Pump Relay › Component Information › Locations2 3
  - Fuel Rail › Component Information › Specifications2 3 4 5 6 7 8 9
  - Fuel Tank30 pages
    Fuel Filler Hose › Component Information › Technical Service Bulletins12 pages
    All Technical Service Bulletins for Fuel Filler Hose: › 03-20-3 › Oct › 03 › Emissions - MIL ON/DTC's Stored/Check Fuel Cap Lamp ON2 3 4 5 6
    Customer Interest for Fuel Filler Hose: › 03-20-3 › Oct › 03 › Emissions - MIL ON/DTC's Stored/Check Fuel Cap Lamp ON2 3 4 5 6
    Fuel Filler Neck › Component Information › Technical Service Bulletins12 pages
    All Technical Service Bulletins for Fuel Filler Neck: › 03-20-3 › Oct › 03 › Emissions - MIL ON/DTC's Stored/Check Fuel Cap Lamp ON2 3 4 5 6
    Customer Interest for Fuel Filler Neck: › 03-20-3 › Oct › 03 › Emissions - MIL ON/DTC's Stored/Check Fuel Cap Lamp ON2 3 4 5 6
    Fuel Tank Shield › Component Information › Technical Service Bulletins6 pages
    All Technical Service Bulletins for Fuel Tank Shield: › 05B31S2 › May › 07 › Campaign - Fuel Tank Shield Limo Upgrade2 3
    Recalls for Fuel Tank Shield: › 05B31S2 › May › 07 › Campaign - Fuel Tank Shield Limo Upgrade2 3
  - Fuel Tank Unit › Component Information › Diagrams
  - Idle Speed/Throttle Actuator - Electronic › Component Information › Specifications2 3 4
  - Inertia Fuel Shutoff Switch › Component Information › Specifications2
  - Main Relay (Computer/Fuel System) › Component Information3 pages
    Locations
    Testing and Inspection › PCM Power Relay2
  - Relays and Modules - Fuel Delivery and Air Induction6 pages
    Fuel Pump Relay › Component Information › Locations2 3
    Main Relay (Computer/Fuel System) › Component Information3 pages
    Locations
    Testing and Inspection › PCM Power Relay2
  - Sensors and Switches - Fuel Delivery and Air Induction12 pages
    Air Flow Meter/Sensor › Component Information › Technical Service Bulletins6 pages
    All Technical Service Bulletins for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    Customer Interest for Air Flow Meter/Sensor: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms2 3
    Inertia Fuel Shutoff Switch › Component Information › Specifications2
    Throttle Position Sensor › Component Information › Specifications2 3 4
  - Throttle Body › Component Information › Specifications2 3 4
  - Throttle Cable/Linkage › Component Information6 pages
    Specifications2
    Service and Repair › Accelerator Cable2 3 4
  - Throttle Position Sensor › Component Information › Specifications2 3 4
- Ignition System44 pages
- Transmission Control Systems23 pages
  - Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T5 pages
    Electronic Pressure Control Solenoid <--> [Pressure Regulating Solenoid, A/T] › Component Information › Service and Repair2
    Shift Interlock Solenoid › Component Information › Specifications2
    Torque Converter Clutch Solenoid, A/T › Component Information › Specifications
  - Lamps and Indicators - Transmission and Drivetrain5 pages
    Lamps and Indicators - A/T › Shift Indicator › Component Information › Adjustments
    Lamps and Indicators - Transfer Case › Four Wheel Drive Indicator Lamp › Component Information › Technical Service Bulletins4 pages
    All Technical Service Bulletins for Four Wheel Drive Indicator Lamp: › 00-14-2 › Jul › 00 › Speedometer Defective,, 4X4 Lamp ON, DTCs P1635/P16392
    Customer Interest for Four Wheel Drive Indicator Lamp: › 00-14-2 › Jul › 00 › Speedometer Defective,, 4X4 Lamp ON, DTCs P1635/P16392
  - Sensors and Switches - Transmission and Drivetrain › Sensors and Switches - A/T13 pages
    Shift Interlock Switch › Component Information › Technical Service Bulletins4 pages
    All Technical Service Bulletins for Shift Interlock Switch: › 02-13-6 › Jul › 02 › Stoplamps/Shift Interlock - Inoperative2
    Customer Interest for Shift Interlock Switch: › 02-13-6 › Jul › 02 › Stoplamps/Shift Interlock - Inoperative2
    Transmission Mode Switch, A/T › Component Information › Description and Operation2 3
    Transmission Position Switch/Sensor, A/T › Component Information › Specifications2 3 4 5
    Output Shaft Speed Sensor <--> [Transmission Speed Sensor, A/T] › Component Information › Specifications
- PROM - Programmable Read Only Memory › Component Information › Technical Service Bulletins10 pages
  - Customer Interest: › 00-6-2 › Mar › 00 › PCM - Idle Dip After Tip In/Tip Out/Spark Knock2
  - All Technical Service Bulletins for PROM - Programmable Read Only Memory:5 pages
    04-24-14 › Dec › 04 › Engine Controls - General PCM Programming Procedures2 3
    00-6-2 › Mar › 00 › PCM - Idle Dip After Tip In/Tip Out/Spark Knock2
  - All Other Service Bulletins for PROM - Programmable Read Only Memory: › 04-24-14 › Dec › 04 › Engine Controls - General PCM Programming Procedures2 3
07Transmission and Drivetrain Transmission and Drivetrain: Sections
08Brakes and Traction Control Brakes and Traction Control: Sections
09Starting and Charging Starting and Charging: Sections
10Power and Ground Distribution Power and Ground Distribution: Sections
11Steering and Suspension Steering and Suspension: Sections
12Heating and Air Conditioning Heating and Air Conditioning: Sections
13Restraint Systems Restraint Systems: Sections
14Accessories and Optional Equipment Accessories and Optional Equipment: Sections
15Body and Frame Body and Frame: Sections
16Cruise Control Cruise Control: Sections
17Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
18Lighting and Horns Lighting and Horns: Sections
19Windows and Glass Windows and Glass: Sections
20Wiper and Washer Systems Wiper and Washer Systems: Sections