Engine Controls - System Test DV Through JD - CNG, Flex-Fuel & Gasoline
- Test DV: Electronic Throttle Control Throttle Position Sensor, Throttle Control Motor
- Test FB: Power Take Off
- Test FD: Brake Pedal Position Switch
- Test Ff: Power Steering Pressure Switch
- 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 HH: Exhaust Gas RECIRCULATION System Module
- 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 Sensor