P0225

Diagnostic Chart:

Wiring Chart:

CIRCUIT DESCRIPTION

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


CONDITIONS FOR SETTING THE DTC

^ The reference voltage on the APP 3 is below 4.8 volts.

^ The condition was met for 2 seconds.

ACTION TAKEN WHEN THE DTC SETS

^ The Service Throttle Soon lamp will not illuminate when one APP DTC sets. The PCM will only illuminate the Service Throttle Soon lamp when multiple APP DTCs set

^ The PCM records the operating conditions at the time the diagnostic fails. This information stores in the Failure Records.

CONDITIONS FOR CLEARING THE MIL/DTC

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

^ Use of a Scan tool will clear the DTC codes.


DIAGNOSTIC AIDS

An intermittent may be caused by the following:

^ Poor connections

^ A rubbed through wire insulation

^ A broken wire inside of the insulation All of the 5 volt reference circuits must be checked for a proper reference voltage. Voltmeter accuracy is important.

TEST DESCRIPTION

The number(s) below refer to the step number(s) on the Diagnostic Table.

2. This step will check all 5 volt reference circuits.