NO SIGNAL
Test results
1
ELECTRICAL CONNECTIONS CHECK
All OK
Problems encountered
Operation
Check for loose electrical connections at the solenoid 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 E5020 ENGINE COOLING
Go to Step 3
Breaks in the wiring continuity.
Restore the correct continuity for the wiring.
3
RELAY OPERATION CHECK
Check that the relay is working properly using the Examiner in active diagnosis
Go to Step 4
Relay not working properly.
Replace the relay.
4
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
WIRING INSULATION CHECK
Check the condition of the wiring insulation (short circuit to Vbatt)
Wiring insulation faulty.
Restore correct wiring insulation.
Go to Step 5
5
BELOW THRESHOLD
Check the condition of the wiring insulation (short circuit to GND).