Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo 155 Factory Service Manual (1992-1998)65 · Heating and ventilation
65 · Heating & A/C

Self-diagnosis

Make
Alfa Romeo
Model
155 Factory Service Manual
Year
1992–1998
Section
Self-diagnosis › Self-diagnosis
Heating and ventilationSelf-diagnosis · page 1 of 2

SELF-DIAGNOSIS

Follow the operations for each phase in order.

First phase

Actuate the ignition key from the STOP position to the MAR position at the same time holding the AUTO button in. The indications shown in the figure below should appear on the two displays and the leds of the buttons indicated by hatching should come on.

Control panel with various buttons and displays, including 'EXT', 'TEMP', 'AUTO', and 'OFF' labels, with some buttons highlighted by hatching.

Push the button indicated by the letter A.

The indications represented in the figure below should appear on the two displays and the leds indicated should come on.

By pressing button A a second time the system returns to the previous condition.

Second phase

  1. Press the AUTO button.

The indications illustrated in the figure below should appear on the lower display.

2. Press the various buttons illustrated in the table below in order and check that the relative code appears on the upper display for each one.

BUTTON RELATIVE CODE
[symbol] 5
[symbol] 6
[symbol] 1
[symbol] 2
[symbol] d
[symbol] 7
[symbol] 9
[symbol] b
[symbol] c
[symbol] r
[symbol] E

Parts & tools for this job For 1992 Alfa Romeo 155

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