H1 V8-6.5L DSL (1998)
Accelerator Pedal Position Sensor: Description and Operation
Figure 3-7: Electronic Accelerator Pedal Components
Figure 3-8: Electronic Accelerator Pedal (Location)
Figure 3-9: Accelerator Pedal Connector Clip
Electronic Accelerator Pedal
Turbo diesel models are equipped with an electronic accelerator pedal assembly (Figure 3-7). The assembly consists of a pedal and arm, mounting
bracket, and potentiometer module. The pedal assembly mounts in a conventional location.
The pedal potentiometer module contains three potentiometers that send varying voltage signals to the PCM. By comparing the different voltage signals
against a standard, the PCM can determine fuel delivery rate based on accelerator pedal position.
A "check throttle" warning light is used to alert the driver of a problem with the pedal assembly.
Some faults in the pedal potentiometer module or related wiring will trigger the check throttle warning light. The light is located in the status center.
Some faults will cause loss of cruise control only and multiple faults in the APP circuit can result in decreased performance or engine idle only.
