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

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Model: 850 2,O 850 2,312,5 850 2,5 20V 960 2,5 20V<br />

SN70 2,012,5 20V<br />

Year: 1995-99<br />

Engine code:<br />

852023, B5202FS, B5204T, B5204T2, B5234FS,<br />

B5234T, B5234T2, B5234T4, B5234T5, B5252FS,<br />

852528, 852548, B6254F, B6304F<br />

System: Bosch Motronic 1.8 Bosch Motronic 4.3<br />

Siemens Fenix 5.2<br />

VOLVO<br />

Engine management<br />

850 - near gear lever 960 - centre console<br />

SN70 - centre console<br />

General information<br />

Refer to the front of this manual for general test conditions,<br />

terminology, detailed descriptions of wiring faults <strong>and</strong> a<br />

general trouble shooter for electrical <strong>and</strong> mechanical faults.<br />

G <strong>Trouble</strong> codes are displayed by using an LED connected to<br />

the data link connector (DLC).<br />

The ECM fault memory can also be checked <strong>and</strong> erased<br />

using diagnostic equipment connected to the data link<br />

connector (DLC).<br />

Ensure immobilizer disarmed.<br />

Accessing<br />

Ensure ignition switched OFF.<br />

Bridge data link connector (DLC) terminal 3 <strong>and</strong> 5 with a<br />

switched lead - contacts normally open 0.<br />

Connect LED test lamp between data link connector (DLC)<br />

terminals 3 <strong>and</strong> 16 0.<br />

Switch ignition ON.<br />

Operate switch for approximately 1 second.<br />

Count LED flashes. Note trouble code.<br />

Each trouble code consists of three groups of flashes m.<br />

A 3 second pause separates each group [A].<br />

For example: <strong>Trouble</strong> code 223 displayed - idle air<br />

control (IAC) valve.<br />

Repeat switch operation. Note trouble codes. Compare with<br />

trouble code table.<br />

Switch ignition OFF. Rectify faults as necessary.<br />

/<strong>Autodata</strong><br />

Ename manaqement 815

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