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

Engine management
System: Bosch LH-Jetronic 2.413.2
850 - near gear lever W0 - centre cone&
940 - centre console
Accessing - without immobilizer
General information
Refer to the front of this manual for general test conditions,
terminology, detailed descriptions of wiring faults and a
general trouble shooter for electrical and mechanical faults.
Without immobilizer: Trouble codes are displayed by using
an LED connected to the data link connector (DLC).
Without immobilizer: The fuellignition control module fault
memory can also be accessed and erased using diagnostic
equipment connected to the data link connector (DLC).
With immobilizer: The fuellignition control module fault
memory can only be accessed and erased using diagnostic
equipment connected to the data link connector (DLC).
Fuel system
Ensure ignition switched OFF.
Bridge data link connector (DLC) terminal 3 and 5 with a
switched lead - contacts normally open D.
Connect LED test lamp between data link connector (DLC)
terminals 3 and 5 0.
Switch ignition ON.
Operate switch for approximately 1 second.
Count LED flashes. Note trouble code.
Each trouble code consists of three groups of flashes a.
A 3 second pause separates each group [A].
For example: Trouble code 223 displayed - idle air
control (IAC) valve.
Repeat switch operation. Note trouble codes. Compare with
trouble code table.
Switch ignition OFF. Rectify faults as necessary.
NOTE: Maximum of 3 trouble codes can be stored by memory at
one time.
1 820 _I Engine management
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