Comanche 2WD L6-242 4.0L VIN S MFI (1992): Powertrain Management

Also for this vehicle: Comanche 2WD L4-126 2.1L DSL Turbo VIN B FI (1986), Comanche 2WD L4-150 2.5L VIN E TBI (1989), Comanche 2WD L4-150 2.5L VIN H TBI (1988), Comanche 2WD L4-150 2.5L VIN P MFI (1991), Comanche 2WD L6-242 4.0L VIN L FI (1990), Comanche 2WD L6-242 4.0L VIN M FI (1987), Comanche 2WD V6-173 2.8L VIN W 2-bbl (1986), Comanche 4WD L4-126 2.1L DSL Turbo VIN B FI (1988), Comanche 4WD L4-150 2.5L VIN E TBI (1989), Comanche 4WD L4-150 2.5L VIN H TBI (1986), Comanche 4WD L4-150 2.5L VIN P MFI (1991), Comanche 4WD L6-242 4.0L VIN L FI (1990), Comanche 4WD L6-242 4.0L VIN M FI (1987), Comanche 4WD L6-242 4.0L VIN S MFI (1992).

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.

01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
05Powertrain Management Powertrain Management: Sections
- Relays and Modules - Powertrain Management41 pages
  - Relays and Modules - Computers and Control Systems28 pages
    Body Control Module › Component Information › Diagrams › Diagram Information and Instructions2 3
    Engine Control Module › Component Information21 pages
    Technical Service Bulletins8 pages
    Customer Interest: › 181093A › Nov › 93 › PCM - Engine Clatter Noise After Cold Start2
    All Technical Service Bulletins for Engine Control Module:4 pages
    181093A › Nov › 93 › PCM - Engine Clatter Noise After Cold Start2
    082393 › May › 93 › PCM - Upshift Indicator Lamp ON in 5TH Gear2
    All Other Service Bulletins for Engine Control Module: › 082393 › May › 93 › PCM - Upshift Indicator Lamp ON in 5TH Gear2
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3 4 5
    Description and Operation › General Operation2 3 4 5 6
    Main Relay (Computer/Fuel System) › Component Information › Locations › Component Locations2 3 4
  - Relays and Modules - Fuel Delivery and Air Induction8 pages
    Fuel Pump Ballast Bypass Relay <--> [Fuel Pump Ballast Resistor Relay] › Component Information › Locations2
    Fuel Pump Relay › Component Information › Locations › Component Locations2
    Main Relay (Computer/Fuel System) › Component Information › Locations › Component Locations2 3 4
  - Relays and Modules - Ignition System5 pages
    Ignition Ballast Resistor Relay › Component Information › Locations › Component Locations2
    Ignition Control Module › Component Information › Diagrams › Diagram Information and Instructions2 3
- Sensors and Switches - Powertrain Management71 pages
  - Sensors and Switches - Computers and Control Systems48 pages
    Accelerator Pedal Position Sensor › Component Information › Locations
    Battery Temperature Sensor › Component Information › Description and Operation
    Camshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages
    Specifications › Electrical Specifications2 3
    Locations › Component Locations2
    Crankshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Charge Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information4 pages
    Specifications › Temperature VS. Voltage Curve2
    Locations › Component Locations2
    Manifold Pressure/Vacuum Sensor › Component Information3 pages
    Specifications
    Locations › Component Locations2
    Oxygen Sensor › Component Information10 pages
    Specifications
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Testing and Inspection › Engine Controller Response Test2 3 4
    Power Steering Pressure Switch › Component Information › Locations › Component Locations2
    Throttle Position Sensor › Component Information6 pages
    Specifications2
    Diagrams › Diagram Information and Instructions2 3 4
    Vehicle Speed Sensor › Component Information6 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3 4
  - Sensors and Switches - Fuel Delivery and Air Induction7 pages
    Accelerator Pedal Position Sensor › Component Information › Locations
    Throttle Position Sensor › Component Information6 pages
    Specifications2
    Diagrams › Diagram Information and Instructions2 3 4
  - Sensors and Switches - Ignition System16 pages
    Camshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Crankshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Ignition Switch › Component Information6 pages
    Locations2
    Diagrams › Diagram Information and Instructions2 3 4
- Tune-up and Engine Performance Checks30 pages
- Computers and Control Systems166 pages
  - Accelerator Pedal Position Sensor › Component Information › Locations
  - Charge Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information4 pages
    Specifications › Temperature VS. Voltage Curve2
    Locations › Component Locations2
  - Battery Temperature Sensor › Component Information › Description and Operation
  - Body Control Module › Component Information › Diagrams › Diagram Information and Instructions2 3
  - Brake Signal › Component Information › Description and Operation
  - Camshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
  - Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages
    Specifications › Electrical Specifications2 3
    Locations › Component Locations2
  - Cranking Signal › Component Information › Description and Operation
  - Crankshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
  - Data Link Connector › Component Information5 pages
    Locations2
    Description and Operation › Data Link Connector2 3
  - Engine Control Module › Component Information21 pages
    Technical Service Bulletins8 pages
    Customer Interest: › 181093A › Nov › 93 › PCM - Engine Clatter Noise After Cold Start2
    All Technical Service Bulletins for Engine Control Module:4 pages
    181093A › Nov › 93 › PCM - Engine Clatter Noise After Cold Start2
    082393 › May › 93 › PCM - Upshift Indicator Lamp ON in 5TH Gear2
    All Other Service Bulletins for Engine Control Module: › 082393 › May › 93 › PCM - Upshift Indicator Lamp ON in 5TH Gear2
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3 4 5
    Description and Operation › General Operation2 3 4 5 6
  - Idle Speed/Throttle Actuator - Electronic › Component Information › Locations › Component Locations2
  - Main Relay (Computer/Fuel System) › Component Information › Locations › Component Locations2 3 4
  - Malfunction Indicator Lamp › Component Information › Description and Operation2
  - Manifold Pressure/Vacuum Sensor › Component Information3 pages
    Specifications
    Locations › Component Locations2
  - Oxygen Sensor › Component Information10 pages
    Specifications
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Testing and Inspection › Engine Controller Response Test2 3 4
  - Power Steering Pressure Switch › Component Information › Locations › Component Locations2
  - Relays and Modules - Computers and Control Systems28 pages
    Body Control Module › Component Information › Diagrams › Diagram Information and Instructions2 3
    Engine Control Module › Component Information21 pages
    Technical Service Bulletins8 pages
    Customer Interest: › 181093A › Nov › 93 › PCM - Engine Clatter Noise After Cold Start2
    All Technical Service Bulletins for Engine Control Module:4 pages
    181093A › Nov › 93 › PCM - Engine Clatter Noise After Cold Start2
    082393 › May › 93 › PCM - Upshift Indicator Lamp ON in 5TH Gear2
    All Other Service Bulletins for Engine Control Module: › 082393 › May › 93 › PCM - Upshift Indicator Lamp ON in 5TH Gear2
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3 4 5
    Description and Operation › General Operation2 3 4 5 6
    Main Relay (Computer/Fuel System) › Component Information › Locations › Component Locations2 3 4
  - Sensors and Switches - Computers and Control Systems48 pages
    Accelerator Pedal Position Sensor › Component Information › Locations
    Battery Temperature Sensor › Component Information › Description and Operation
    Camshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages
    Specifications › Electrical Specifications2 3
    Locations › Component Locations2
    Crankshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Charge Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information4 pages
    Specifications › Temperature VS. Voltage Curve2
    Locations › Component Locations2
    Manifold Pressure/Vacuum Sensor › Component Information3 pages
    Specifications
    Locations › Component Locations2
    Oxygen Sensor › Component Information10 pages
    Specifications
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Testing and Inspection › Engine Controller Response Test2 3 4
    Power Steering Pressure Switch › Component Information › Locations › Component Locations2
    Throttle Position Sensor › Component Information6 pages
    Specifications2
    Diagrams › Diagram Information and Instructions2 3 4
    Vehicle Speed Sensor › Component Information6 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3 4
  - Shift Light › Component Information › Description and Operation2
  - Throttle Position Sensor › Component Information6 pages
    Specifications2
    Diagrams › Diagram Information and Instructions2 3 4
  - Vehicle Speed Sensor › Component Information6 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3 4
  - Voltage Signal › Component Information › Description and Operation
- Emission Control Systems30 pages
  - Catalytic Converter › Component Information13 pages
    Technical Service Bulletins10 pages
    Recalls for Catalytic Converter: › 681 › May › 96 › Recall - Catalytic Converter2 3 4 5
    All Technical Service Bulletins for Catalytic Converter: › 681 › May › 96 › Recall - Catalytic Converter2 3 4 5
    Testing and Inspection › Initial Inspection and Diagnostic Overview2 3
  - Emissions Maintenance Light › Component Information › Description and Operation2 3
  - Evaporative Emissions System9 pages
    Purge Control Valve <--> [Canister Purge Control Valve] › Component Information › Description and Operation2
    Evaporative Check Valve › Component Information › Description and Operation2 3
    Evaporative Emission Control Canister › Component Information › Locations2 3 4
  - Exhaust Gas Recirculation › EGR Maintenance Light › Component Information › Description and Operation
  - Fillpipe Restrictor › Component Information › Description and Operation
  - Crankcase Ventilation (CCV) System <--> [Positive Crankcase Ventilation]2 pages
    PCV Orifice › Component Information › Service and Repair
    Positive Crankcase Ventilation Valve › Component Information › Locations
  - Thermostatic Air Cleaner › Component Information › Description and Operation
- Fuel Delivery and Air Induction86 pages
- Ignition System62 pages
  - Firing Order › Component Information › Specifications
  - Ignition Timing2 pages
    Number One Cylinder › Component Information › Locations
    Timing Marks and Indicators › System Information › Locations
  - Ignition Ballast Resistor › Ignition Ballast Resistor Relay › Component Information › Locations › Component Locations2
  - Camshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
  - Crankshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
  - Distributor, Ignition4 pages
    Distributor Cap › Component Information › Testing and Inspection2
    Ignition Rotor › Component Information › Testing and Inspection2
  - Ignition Cable › Component Information › Specifications2 3
  - Ignition Coil › Component Information › Locations2 3 4
  - Ignition Control Module › Component Information › Diagrams › Diagram Information and Instructions2 3
  - Relays and Modules - Ignition System5 pages
    Ignition Ballast Resistor Relay › Component Information › Locations › Component Locations2
    Ignition Control Module › Component Information › Diagrams › Diagram Information and Instructions2 3
  - Sensors and Switches - Ignition System16 pages
    Camshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Crankshaft Position Sensor › Component Information5 pages
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3
    Ignition Switch › Component Information6 pages
    Locations2
    Diagrams › Diagram Information and Instructions2 3 4
  - Spark Plug › Component Information12 pages
    Specifications › Gap Specifications2
    Testing and Inspection › Broken, Cracked or Chipped Insulator2 3 4 5 6 7 8
    Service and Repair › Replacement Notes2
- Transmission Control Systems25 pages
  - Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T › Torque Converter Clutch Solenoid, A/T › Component Information › Testing and Inspection › Shudder After Lockup Engagement2 3 4 5
  - Lamps and Indicators - Transmission and Drivetrain4 pages
    Lamps and Indicators - A/T › Shift Indicator › Component Information › Technical Service Bulletins › PCM - Upshift Indicator Lamp ON in 5TH Gear2
    Lamps and Indicators - Transfer Case › Four Wheel Drive Indicator Lamp › Component Information › Locations2
  - Relays and Modules - Transmission and Drivetrain › Relays and Modules - A/T › Control Module, A/T › Component Information14 pages
    Technical Service Bulletins6 pages
    Customer Interest for Control Module: › 080993 › Mar › 93 › Speed Control - Intermittent Dropout/Disengagement2 3
    All Technical Service Bulletins for Control Module: › 080993 › Mar › 93 › Speed Control - Intermittent Dropout/Disengagement2 3
    Locations › Component Locations2
    Diagrams › Diagram Information and Instructions2 3 4 5 6
  - Sensors and Switches - Transmission and Drivetrain › Sensors and Switches - A/T › Transmission Speed Sensor, A/T › Component Information › Service and Repair › Speed Sensor2
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections