SIGNAL NOT VALID
Test results
1
ELECTRICAL CONNECTIONS CHECK
All OK
Problems encountered
Operation
Check for loose electrical connections at the battery, at the alternator and at the engine management control unit.
Go to Step 2
Presence of loose electrical connections.
Restore the correct connections.
2
WIRING CONTINUITY CHECK
Check for breaks in the wiring continuity caused by oxidised or corroded terminals
See E5010 STARTING AND RECHARING
Go to Step 3
Breaks in the wiring continuity.
Restore the correct continuity for the wiring.
3
BATTERY CHARGE CHECK
Check the battery charge using the MIDTRONICS N.° 1806514000 equipment
Go to Step 4
Battery not working properly.
Replace the battery.
4
ALTERNATOR CORRECT OPERATION CHECK
Check that the alternator is working properly by carrying out the
See Test 5530AB ALTERNATOR OPERATION CHECK
Go to Step 5
Alternator not working properly.
Replace the alternator
Op. 5530A10 ALTERNATOR - R.R.
5
ENGINE MANAGEMENT CONTROL UNIT OPERATION CHECK
Check that the engine management control unit is working properly.
End of diagnosis
Engine management control unit faulty.
Replace the engine management control unit
Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R
ABOVE THRESHOLD
Battery not working properly. Voltage too high.
BELOW THRESHOLD
Battery not working properly. Battery voltage low.