Volvo 240 1989 Service Manual page 31

Fault tracing
Fuel system LH2.4 - 240
Control function 2
•
fJ: C: C:
- - fJ:
n n - - -
0:
no:
3 3 3
Al
Turn on the ignition_
Open the diagnostic socket cover and connect
the selector cable to pin no. 2.
Turn the throllie control to full load position .
A8
Depress the bullon in the diagnostic socket
twice.
Each time the button is depressed. it should be kept
in for at least 1 second, but not more than 3,
The lighl diode should begin to flash.
A9
Release throttle control
II the flash series 3·3·3 comes up, the function of the
shutter switch is correct in full load position.
lithe light diode continues to flash rapidly. see C4 and
E9,
29