SIGNAL NOT VALID
Test results
1
CONTROL UNIT UPDATE CHECK
All OK
Problems encountered
Operation
Check that the engine management control unit is correctly updated.
Go to Step 2
Engine management control unit software incorrectly updated.
Update the engine management control unit using the correct software
2
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