Fault Codes - Volvo Penta D1-13 Workshop Manual

P0007945
a
BL / W
6
SB
1
MDI
P0008410
a Engine connector
b Oil pressure switch
47704383 06-2013 © AB VOLVO PENTA

Fault Codes

Oil pressure (engine) warning
Tachometer
The tachometer LCD screen will show a flashing oil
pressure icon and the alarm buzzer sounds.
Alarm display
The oil pressure indication flashes in the alarm display
+ audible warning.
Circuit description
The oil pressure in the engine is monitored by a pres-
sure switch. The output signal from the pressure switch
can have two distinct positions, high/low, in the same
b
way as a relay output. A pre-set limit value determines
1
P
when the switch switches from one distinct position to
2
the other one. The switch is closed when the oil pres-
sure is low and when the engine is off. Pin 6 in the
engine interface connector at the MDI provides the
switch with a voltage signal.
Fault tracing
Fault condition
The oil pressure switch closes at a oil pressure lower
than 60 kPa (8.7 PSI).
The alarm is depended of the engine rpm.
<1000 rpm: oil pressure switch closed for more than
30 seconds.
>1000 rpm: oil pressure switch closed for more than
0.5 seconds.
Possible reason
•
•
•
Suitable action
1 Check the oil level in the engine and the oil quality.
2 Check that the oil filter is not blocked. Change oil
3 Check that no leakage occurs.
Oil level too low.
Short circuit between oil pressure switch supply
cable and battery negative.
Faulty oil pressure switch.
filter and engine oil.
30-2 Fault Tracing
13