16 · Electrical

Key recognition device efficiency check

Make: Fiat
Model: Croma Factory Service Manual
Year: 2005–2010
Section: Instrument/gauge electrical circuits › Key recognition device efficiency check

Electrical equipmentKey recognition device efficiency check

KEY RECOGNITION DEVICE EFFICIENCY CHECK

Check 5505AF

	CHECK TO BE PERFORMED	RESOLUTION IF THE CHECK IS NOT OK
1	Insert the key in the key reader device and check that the wheel lights up to indicate that the B-CAN network is active. Check that the steering is released.	Restore B-Can continuity See E1050 CAN CONNECTION LINES
2	Connect the diagnostic tester to the TEG Reader node. Insert the key in the reader and ensure the system recognises the key. The test can be considered over	Replace the key and store it in the Teg Reader node. Move on to Step 3
3	With the diagnostic instrument in Voltmeter mode, connect the positive probe to ignition Pin 6 and the negative to earth. See H003 IGNITION DEVICE Check that there is a 12 Volt voltage present.	Replace the key recognition device Op. 5505A31 ELECTRONIC KEY ACKNOWLEDGEMENT DEVICE - R. R.
4	Disconnect the wiring from the device connector See H003 IGNITION DEVICE Connect the diagnostic instrument in Ohmmeter mode with the probe between Pin 6 of the device and earth See H003 IGNITION DEVICE Check for the presence of a resistance less than 1 Ohm.	Reset the earth connection of the right facia area See E1020 EARTHS
5	With the diagnostic instrument in Voltmeter mode, connect the positive probe to device Pin 2 and the negative to earth See H003 IGNITION DEVICE Check that there is a 12 Volt voltage present.	Replace the key recognition device Op. 5505A31 ELECTRONIC KEY ACKNOWLEDGEMENT DEVICE - R. R.

CHECK TO BE PERFORMED

RESOLUTION IF THE CHECK IS NOT OK

Insert the key in the key reader device and check that the wheel lights up to indicate that the B-CAN network is active.

Check that the steering is released.

Restore B-Can continuity

Connect the diagnostic tester to the TEG Reader node.

Insert the key in the reader and ensure the system recognises the key.

The test can be considered over

Replace the key and store it in the Teg Reader node.

Move on to Step 3

With the diagnostic instrument in Voltmeter mode, connect the positive probe to ignition Pin 6 and the negative to earth.