1 Discharged batteries
2 Poor contact/open circuit in cables
3 Main switch in off position
4 Main fuse blown
5 Faulty ignition switch
6 Faulty main relay
7 Faulty starter motor/solenoid
8 Lack of fuel:
– fuel taps closed
– fuel tank empty/wrong tank connected
9 Blocked fuel filter/primary filter (because of contamination, or paraffin fraction separation in fuel at low tem-
perature)
10 Air in the fuel system
11 Water or contaminants in fuel
12 Faulty unit injector
13 Insufficient air supply to engine:
– blocked air filter
– air leakage between turbocharger and engine inlet manifold
– fouled compressor section in turbocharger
– faulty turbocharger
– poor engine bay ventilation
14 Coolant temperature too high
15 Coolant temperature too low
16 Oil level too low
17 Coolant level too low
18 Air in the coolant system
19 Faulty circulation pump
20 Defective thermostat
21 Clogged charge air cooler
22 Oil level too high
23 Alternator drive belt slipping
24 Water entry into engine
25 High back pressure in exhaust system
26 Break in Pot+ cable to pedal
Fault Handling
47702660 03-2013 © AB VOLVO PENTA
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