Hard failures cause "malfunction" light to illuminate and remain on until the malfunction is repaired. If light comes on and remains on (light may flash) during vehicle operation, cause of malfunction must be determined using diagnostic (code) charts.
Contents
Section: Theory & Operation- Introduction
- Control Unit
- A/c Clutch
- Barometric Pressure Switch (bps)
- Blower Control Switch
- Brake On-Off Switch
- Clutch Engage Switch
- Coolant Temperature Sensor (ECT)
- EGR Valve Position Sensor (evp)
- Engine Cooling Fan
- Exhaust Gas Oxygen Sensor (ego)
- Headlight Switch
- Idle Switch
- Ignition Diagnostic Monitor
- Ignition Switch Start Position
- Neutral Gear Switch
- Power Relay
- Radiator Temperature Switch
- Top Gear Switch
- W.o.t. Vacuum Switch (wvs)
- A/c Switch
- Cranking Signal (tracer)
- Engine Coolant Temperature Sensor
- Exhaust Gas Oxygen Sensor
- MAP Sensor (MAP)
- Neutral Safety Switch
- Power Steering Switch (tracer)
- Rear Defroster Switch
- Throttle Position Sensor
- Vane Air Flow Meter (vaf)
- Vane Air Temperature Sensor (vat)
- Vehicle Deceleration Sensor (tracer)
- Wide Open Throttle Switch
- EGR Control Solenoid
- EGR Solenoid No. 2
- Early Fuel Evaporation Heater (efe)
- Feedback Carburetor Actuator (fbca)
- Load Control Solenoids
- Canister Purge Solenoid (canp)
- Fuel Injectors
- Idle Speed Control By-Pass Air
- Feedback Control Carburetor (fbc)
- Electronic Fuel Injection (efi)
- By-Pass Airflow
- Fuel Pressure Regulator
- Control Circuit
- Fuel Pump Shut-Off (inertia) Switch
- Mechanical Fuel Pump (carbureted)
- Ignition Module
- High Altitude Spark Advance Correction
- EGR (carbureted)
- Pulse Air (carbureted)
- Deceleration System (carbureted)
- High Altitude Compensation (hac)
- Canister Pressure Regulator Valve
- Canister Purge Regulator
- Canister Purge Solenoid
- Canister Purge Valve
- Carburetor Fuel Bowl Solenoid Vent Valve
- Self-Diagnostic System
- Hard Failures
- Intermittent Failures
- Check Engine Light
- Abbreviations
- Adjustments
- Application
- Automatic Trans
- Axle Shafts
- Basic Trouble Shooting
- Brakes
- Charging System
- Check Lists
- Clutches Manual & Hydraulic
- Computer Relearn
- Cooling System (mechanical)
- Diagnostic Connector Locations
- Driveline/axles
- Electrical
- Electrical Component Locations
- Emission Applications
- Engine
- Engine Performance
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- General Servicing - All Makes
- Heated Glass/defoggers
- Heater
- Identification
- Manual HVAC System
- Manual Trans
- MAP Guidelines
- Mechanical
- Mechanical - Hydraulic
- Metric Conversions
- Pin Voltage Charts
- Procedures
- Removal & Installation
- Reset Procedures
- Sensor Range Charts
- Specifications
- Starter
- Steering
- Steering Column
- Steering Gear
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Theory & Operation
- Timing Belt
- Transmission
- Wheel Alignment
- Wiper/washer Systems
- Wiring Diagrams - Engine Performance