Mode button not working
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Instrument panel › Mode button not working
Fault diagnosisMode button not working
MODE BUTTON NOT WORKING
The "Instrument Panel Node" receives information directly from the "Mode", "+" and "-" keys.
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|---|---|---|---|
| Connect the Examiner diagnostic equipment and check, in Instrument Panel Node mode, that there are no errors and that the parameters are present. | Move on to Step 6 | 1. Impossible to connect to the NQS | 1. Move on to Step 2 | |
| 2. Presence of errors. | 2. Move on to Step 5 | |||
| 2 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check the electricity supply to the Instrument Panel Node is correct. | Move on to Step 3 | Fault in positive electrical supply and/or earth | Renew and/or replace the defective component (in the case of a fuse, find out what caused it to blow). | |
| 3 | CHECK ELECTRICAL CONNECTIONS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check the electrical wiring/connections of the instrument Panel Node and those between node and steering wheel stalk. Check, in particular, that each pin is correctly connected and inserted in its seat. | Move on to Step 4 | Electrical wiring and/or connections not operating. | Restore damaged wiring and/or electrical connections. | |
| 4 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Use an Examiner to check the possibility of connection to the Instrument Panel Node | Move on to Step 5 | Impossible to connect to the control unit. | Replace the instrument panel | |
| 5 | ELECTRICAL CIRCUIT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check the correct operation of the following components:
| Move on to Step 6 | 1. Wiring faulty | 1. Repair wiring. | |
| 2. Stalk controls malfunctioning. | 2. Replace the steering column switch unit Op. 5550A12 | |||
| 6 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the fault is no longer present | End of diagnosis |
Parts & tools for this job For 2005 Alfa Romeo 159
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLSocket setSearch: socket set metric
- BOOKHaynes manualSearch: Haynes manual Alfa Romeo 159
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