Volvo Penta D1-13 Workshop Manual page 30

30-2 Fault Tracing
14
10 11
12
13
P0008426
28
Suitable action
1 Check that the power switch is connected.
2 Check all wiring and connectors between the button
panel and the MDI.
3 Check the button panel.
Measurements
Check button panel
Tools:
88890074 Multimeter
9998699 Break-out box
88890016 Break-out cable
1 NOTICE! Cut the current with the main switch.
2 Connect 88890016 Break-out cable with
9998699 Break-out box towards the button panel.
3 Use 88890074 Multimeter to do a continuity
(diode) test.
MDI
Measurement points
13 - 10
Battery negative - Stop
13 - 10
Battery negative - Stop
13 - 11
Battery negative - On/off
13 - 11
Battery negative - On/off
13 - 12
Battery negative - Ack./
dimmer
13 - 12
Battery negative - Ack./
dimmer
13 - 14
Battery negative - Start/
preheat
13 - 14
Battery negative - Start/
preheat
*OL = Open line
NOTICE! When testing a button be sure to also push
the other buttons to look for short circuits between but-
tons. There shall be no electrical connection between
buttons.
Nominal value
OL* (button not pushed)
line (button pushed)
OL (button not pushed)
line (button pushed)
OL (button not pushed)
line (button pushed)
OL (button not pushed)
line (button pushed)
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