TM 9-2320-363-20-1
ELECTRICAL TROUBLESHOOTING (CONT)
jumper wires using Jumper Wire Kit (P/N J35751). When ready to make the prescribed check, apply power to the circuit
(if required). A helper may be required if the switch or power source is out of reach. Release the power function prior to
going on, to avoid damage to equipment.
When making continuity checks, make sure the test equipment is isolated from power source.
ELECTRICAL SYMBOLS
The following symbols are used in the troubleshooting schematics:
CONNECTORS
REFERENCE ONLY
BLADES
Troubleshooting Symptom Index
Troubleshooting
Malfunction
Procedure
Number
Malfunction
Page
ENGINE
1. ENGINE FAILS TO CRANK OR CRANKS SLOWLY .....................................................................
3-17
2. ENGINE CRANKS BUT FAILS TO START...................................................................................
3-18
3. ENGINE RUNS ERRATICALLY ...................................................................................................
3-19
4. ENGINE LACKS POWER............................................................................................................
3-19
5. LOW OIL PRESSURE ................................................................................................................
3-19
6. HIGH OIL CONSUMPTION..........................................................................................................
3-20
7. ENGINE OVERHEATS ................................................................................................................
3-20
AIR/FUEL SYSTEM
1. RESTRICTED AIR FLOW INTO TURBOCHARGER......................................................................
3-20
2. FUEL CONTAMINATION.............................................................................................................
3-21
3. RESTRICTED FUEL SUPPLY .....................................................................................................
3-21
EXHAUST SYSTEM
1. EXHAUST GASES ENTER PASSENGER COMPARTMENT.........................................................
3-21
3-10
