Workshop Manuals Factory service & repair Alfa Romeo
01 General data and specifications02 Engine (Twin Spark, JTD and V6)03 Clutch04 Gearbox (manual, Selespeed and Q-System)05 Front axle06 Brakes, ABS and traction control07 Steering08 Suspension and wheels09 Heating, air conditioning and washers10 Electrical equipment11 Body12 Body panels and reinforcement13 Wiring diagrams14 Connectors and pin-outs15 Wiring harnesses16 Fault diagnosis17 Special tools
Alfa Romeo 156 Factory Service Manual (1997-2002)16 · Fault diagnosis
16 · Diagnostics

K56 Both failure and tail warning lights on

Make
Alfa Romeo
Model
156 Factory Service Manual
Year
1997–2002
Section
Instruments › K56 Both failure and tail warning lights on
Fault diagnosisK56 Both failure and tail warning lights on

K56 Both failure and tail warning lights on

During starting, the i.e. failure and the CODE warning lights come on and remain on

NOTA: If both the i.e. failure and the CODE warning lights remain on simultaneously, this means that there has been no dialogue between the two control units to recognize the key that has been inserted and therefore starting will not be enabled.

StepTest procedureResultAction
0PRELIMINARY CHECKS

Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket

Check that the key is properly inserted in the ignition (i.e. enabled)

OK

Move onto step 1

Key not enabled
  • Programme keys correctly.

End of diagnosis

1CHECK WITH DIAGNOSTIC EQUIPMENT

Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket

Check, in order:

  • that there are no faults in the CODE control unit
  • that there are no faults in the engine management control unit
OK

Move onto step 2

Lack of dialogue between the two control units

End of diagnosis

Error detected in one of the control units
  • Continue according to the instructions for the diagnostic equipment

End of diagnosis

Lack of dialogue between the diagnostic equipment and a control unit

End of diagnosis

2CHECK CORRECT OPERATION

Check that the fault is no longer present

OK

End of diagnosis

Fault persists

Incorrect selection of diagnostic procedure

Parts & tools for this job For 1997 Alfa Romeo 156

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.