ON-BOARD DIAGNOSTIC SYSTEM DIAGNOSTIC DATA MEMORY FUNCTION [YF (2.0L Zetec)]

BUE010200000N20

Features

• A diagnostic data memory function has been adopted for storing/clearing engine control system diagnostic data.

Memory Function

• The following diagnostic data can be stored in the PCM using the memory function:

- DTC count

- DTCs

- Freeze frame data

- On-board diagnostic system status

• A DTC is stored in the PCM when an engine control system malfunction occurs. This stored DTC can then be read-out using the WDS or equivalent and is displayed as a five character code (PXXXX).

• The DTC is stored in or cleared from the PCM according to the drive cycle count setting.

Initialization Function

• Diagnostic data stored in the PCM can be cleared using the initialization function.