17 · Body & interior

Check city button

Body fittingsCheck city button

CHECK CITY BUTTON

Check 7040AA

STEP	CHECK TO BE PERFORMED	RESOLUTION IF THE CHECK IS NOT OK
1	Check power supply (+15) - Check an Examiner in Ohmmeter mode across pins 5 and 18 of the button and check continuity with the button pressed.	Replace the city button
2	Check the wiring Check the continuity of the connection across pin 18 of the City button and pin 28 of Body Computer connector B Check the continuity of the connection across pin 5 of the City button and pin 49 of Body Computer connector B See E7045 ELECTRIC STEERING	Restore connection continuity. If the checks are regular and the City function does not activate, replace the Body Computer Op. 7040A56 SWITCH UNIT IN DASHBOARD - R.R.

STEP

CHECK TO BE PERFORMED

RESOLUTION IF THE CHECK IS NOT OK

Check power supply (+15)

- Check an Examiner in Ohmmeter mode across pins 5 and 18 of the button and check continuity with the button pressed.

Replace the city button

Check the wiring

Check the continuity of the connection across pin 18 of the City button and pin 28 of Body Computer connector B

Check the continuity of the connection across pin 5 of the City button and pin 49 of Body Computer connector B

Restore connection continuity.

If the checks are regular and the City function does not activate, replace the Body Computer

City button pinout

Pin	Description
5	Earth signal input from Body Computer
18	Earth signal output for the Body Computer

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