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Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

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<strong>Trouble</strong> codes I<br />

Format of EOBD codes<br />

St<strong>and</strong>ard, 5 element alpha-numeric format, trouble codes, made up as follows:<br />

Letter prefix defines system designation<br />

B<br />

C<br />

P<br />

U<br />

Body<br />

Chassis<br />

Powertrain<br />

Network communications systems<br />

First digit defines code type<br />

I 0 ( St<strong>and</strong>ard EOBD I<br />

( 1 I Defined by vehicle manufacturer I<br />

2 St<strong>and</strong>ard EOBD<br />

3 St<strong>and</strong>ard EOBDIdefined by vehicle manufacturer<br />

Second digit defines system identification<br />

/ 0 1 St<strong>and</strong>ard code (refer to PO code list) I<br />

/ 1 1 Fuel or air I<br />

( 2 1 Fuel or air I<br />

1 3 1 Ignition I<br />

1 4 1 Emission control I<br />

1 5 1 Speed control (idle, vehicle etc.) 1<br />

1 6 1 Trip computer 1<br />

7<br />

8<br />

Transmission<br />

Transmission<br />

1 9 1 Transmission<br />

I<br />

Third <strong>and</strong> fourth digits define specific fault<br />

These digits define general malfunction, range or performance of component or system, low or high input<br />

Example code POl08<br />

This code is logged when a high input is detected in the pressure circuit of the<br />

manifold absolute pressure (MAP) sensor or barometric pressure (BARO) sensor<br />

I P 1 System - Powertrain I<br />

Code type - EOBD<br />

System identification (fuel or air) - manifold<br />

absolute pressure (MAP) sensorlbarometric<br />

pressure (BARO) sensor<br />

Pressure circuit<br />

8 High input<br />

I<br />

NOTE: Emissions related problems have a IS0 defined list of codes <strong>and</strong> definitions starting with P0001.

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