Engine Controls - Self-Diagnostics - EEC-V - CNG, Flex-Fuel & Gasoline
- Introduction
- Self-Diagnostic System
- Quick Test
- Additional System Functions
- Programming Pcm
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Trouble Code Reference Charts
- System Tests
- Notes
- How To Use System Tests
- Test A: No-Start/Vehicle Will Not Start
- Test B: EEC-V Power Relay
- Test C: Reference Voltage
- Test DA: Temperature Sensor Test (IAT, ECT & EOT)
- Test Db: Engine Fuel Temperature Sensor
- Test Dc: Mass Airflow Sensor
- Test Dd: Fuel Rail Pressure (FRP) Sensor
- Test De: Flex Fuel (Ff) Sensor
- Test DF: Vehicle Speed Circuit Check
- Test Dg: Knock Sensor
- Test DH: Throttle Position Sensor
- Test DL: Cylinder Head Temperature Sensor
- Test DP: Vehicle Speed Sensor/Transfer Case Speed Sensor
- Test DQ: Barometric Pressure Sensor
- Test Dr: Camshaft Position Sensor
- Test DS: Air Conditioning Pressure Sensor
- Test DT: Power Steering Pressure Sensor
- Test DU: Intake Air Temperature 2
- Test FB: Power Take Off
- Test FD: Brake Pedal Position Switch
- Test Ff: Power Steering Pressure Switch
- Test FH: Generator Load Input
- Test H: Fuel Control
- Test Ha: Natural Gas Fuel Control
- Test HB: Natural Gas Fuel Delivery System
- Test HC: Gasoline Fuel Delivery System
- Test Hd: Misfire Detection Monitor
- Test He: EGR System
- Test Hf: Catalyst Efficiency Monitor & Exhaust Systems
- Test Hg: PCV System
- Test HK: Variable Cam Timing
- Test HM: Secondary Air Injection System
- Test HU: Air Intake System
- Test HX: Evaporative Emission Monitor & System
- Test HY: Generator/Regulator System
- Test JB: Secondary Ignition
- Test JD: Crankshaft Position (CKP) Sensor
- Test JE: Integrated Ignition Coil Failure
- Test JF: Integrated Ignition Coil-On-Plug Failure
- Test JH: Tachometer Output Failure
- Test KA: Fuel Pump Relay
- Test Kb: Fuel Pump Driver Module
- Test Kc: Fuel Shutoff Valve Relay
- Test KE: Idle Air Control (IAC) Valve
- Test KF: Fan Control Relay
- Test KH: Hydraulic Cooling Fan
- Test KJ: Supercharger By-Pass Control
- Test Kl: Shift Indicator Light
- Test Km: Wot A/C Cut-Off
- Test KP: Charge Air Cooler Pump
- Test NB: Malfunction Indicator Light
- Test NC: Ignition Diagnostic Monitor (IDM)
- Test ND: Engine Rpm/Vehicle Speed Limiter
- Test QA: Unable To Activate Self-Test/SCP Communication Error DTC Not Listed
- Test QB: DTC P0603, P1605 Or P1633
- Test QC: OBD-II Monitor Testing Not Complete; DTC P1000
- Test QD: DTC P1260
- Test Ta: Park & Neutral Position Switch/Clutch Pedal Position Switch
- Test Tb: Transmission Control Switch/Transmission Control Indicator Lamp
- TEST TG: 4x4 LOW (4x4L) RANGE
- Test Th: Reverse Switch
- Test TJ: Output Shaft Speed Sensor
- Test X: Constant Control Relay Module
- Test Z: Intermittent
- System Tests (Evaporative Emissions)
- Notes
- Evaporative Emissions System Leak Test
- Test A: DTC P0442: Small Leak In EVAP System
- Test B: DTC P0455: Major Leak Or No Flow Detected Or DTC P1443: Very Small Or No Purge Flow Detected In System
- Test C: DTC P1450: Excessive Vacuum Detected In Fuel Tank
- Test D: Hiss When Opening Fuel Cap
- Test E: Excessive Fuel Odor
- Test F: Unable To Refuel