Manual diagnosis for unused system

c. When the CODE warning light flashes with code 2 (2 flashes, pause, 2 flashes, etc.), this means one of the following conditions:

• aerial faulty;
• Transponder faulty;
• Transponder missing;
• the electronic fuel injection control unit has received an incorrect code.

Manual diagnosis for unused system

Unused Fiat CODE control unit and ignition on

In the case of cars with unused Fiat CODE control unit and used electronic fuel injection control unit, when the CODE warning light comes on permanently and the ignition is switched on, this indicates one of the following problems:

• aerial faulty;
• Transponder faulty;
• Transponder missing.

FAULT DIAGNOSIS WITH FIAT LANCIA TESTER

For petrol cars fitted with an integrated fuel injection - ignition system and diesel cars with electronic fuel injection pump, the Fiat CODE system does not have its own diagnostic socket. To check whether the system is operating, diagnosis should be conducted on the electronic fuel injection - ignition control unit (petrol cars) or fuel injection control unit (diesel cars).

The following can be measured with the Fiat Lancia Tester:

Parameters

• STARTING PERMITTED/NOT PERMITTED
  This means that the engine control unit has recognized the code permitting engine starting.
• PROGRAMMED/NOT PROGRAMMED STATUS OF ELECTRONIC KEY
  The indication NOT PROGRAMMED means that both fuel injection and Fiat CODE control units are unused (no memorized code).