P0220

DTC P0220 Accelerator Pedal Position (APP) Sensor 2 Circuit






Circuit Description

The Accelerator Pedal Position (APP) module provides a voltage signal that changes relative to accelerator position. There are three sensors located within the APP module that are scaled differently. This is a type C DTC.

Conditions for Setting the DTC

^ Reference voltage on APP 2 less than 4.8 volts.
^ Condition met for 2 seconds.

Action Taken When the DTC Sets

If DTC P0220 is stored, the PCM will turn "ON" the "Service Throttle Soon" lamp and limit power.

Conditions for Clearing the MIL/DTC

^ A History DTC will clear when forty consecutive warm-up cycles that the diagnostic does not fail (coolant temperature has risen 5°C (40°F) from start up coolant temperature and engine coolant temperature exceeds 71°C (160°F) that same ignition cycle).
^ Use of a Scan Tool

Diagnostic Aids

The most likely cause of this DTC is loose connectors or terminals. All 5 volt reference circuits must be checked for proper reference voltage. Volt meter accuracy is important.

Test Description

Number(s) below refer to the number(s) on the diagnostic table.

2. This step will determine if there is a good voltage reference.