1999 Audi A4

1ROMIK

MEMBER
1999 AUDI A4

Electrical problem
1999 Audi A4 4 cyl All Wheel Drive Automatic

Hello, I have a problem with my A4. The turn signals, the windsheild wipers, and the heater fan do not work. I checked all the fuses, they were fine. I also checked the ignition switch and it also was fine. I want to know if there is a computer that functions these, so that I can see if it has malfunctioned. In also checked with a vag-com scan tool and had two faults that came up:

Faults Found:
01273 - Fresh Air Blower (V2)

01206 - Signal for Duration of Ignition Off Time

I have no idea what the problem could be at this point, so please help me.

Thanks

1 Reply

KHLOW2008

MECHANIC
41,814 POSTS

Hi 1romik,

Here are the trouble codes description and what needs to be done to rectify the problem.

A/C-HEATER SYSTEM -1999 Audi A4

DTC 01206: SIGNAL FOR TIME SPAN IGNITION OFF (INCORRECT SIGNAL)
NOTE:
If A/C control head is unable to determine duration of time when ignition is off (standing time), DTC 01206 is loaded into memory. The A/C-heater control panel will default to a standing time greater than 4 hours.

Possible Causes
Shorted or open circuit between instrument cluster and A/C-heater control panel.
Instrument cluster malfunction.

With DTC 01206 set (standing time greater than 4 hours), the actual measured values of the outside temperature sensor are used as instantaneous outside and engine temperature inputs for A/C system control.

When heating mode is selected under these conditions, the fresh air blower has a delayed start. The outside air temperature display may also indicate incorrect outside temperature values.

Corrective Actions
Repair shorted or open circuit in wiring.
Check signal from instrument cluster.

DTC 01273: FRESH AIR BLOWER

Possible Causes
Shorted or open circuit between fresh air blower, fresh air blower control module, and A/C-heater control panel.
Open power or ground circuit to fresh air blower control module.
Faulty fresh air blower control module.
Faulty fresh air blower.

Corrective Actions
Repair shorted or open circuit between fresh air blower, fresh air blower control module and A/C-heater control panel.
Repair open power or ground circuit to fresh air blower control module.
Test fresh air blower control module.
Replace fresh air blower.

Since not only the blower is not working, the problem is most likely caused by an interruption in the power supply.

Fuse 225 supplies power to the fresh air blower and AC control.
Fuse 224 powers the wiper intermittent switch.

Is the emergency flasher working?