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
See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT
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. Battery voltage too low when starting.
Replace the battery.
4
CHECK ON CORRECT OPERATION OF MAIN RELAY
Check that the main relay is working properly
Go to Step 5
Main relay not working properly.
Replace the main relay.
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