Porsche Fault Code #23

[JDC55]

I just pulled a fault code with my Durametric. It says " Porsche Fault Code #23 Footwell Blow-Off Sensor Fault Part #12".

Does anyone know what this is, or where it's located?

I've had heating issues on and off for a couple of years now and maybe this is why.

Any help you might be able to offer would be appreciated!

[Loren]

What module were you testing? HVAC? Always helpful if you tell us...

Fault code 23 -- Footwell blower outlet sensorSensor is on the side of the HVAC blower.

Open circuit1. Unplug connectors A and B from the heating/air-conditioning control.2. Connect ohmmeter to connectors A 12 and B 5. Display: approx. 2.8 k ohms at 23 °C3. Unplug connector from blower outlet sensor.4. Connect ohmmeter to connector A 12 and blower outlet sensor connector pin 2. Display: < 5 ohms5. Connect ohmmeter to connector B 5 and blower outlet sensor connector pin 1. Display: < 5 ohms6. Connect voltmeter to connector B 5 and ground. Switch on ignition. Display: 0 voltsIf approx. 5 volts are displayed, check wiring harness for pinching and chafing damage.

Short to ground1. Unplug connector B from the heating/air-conditioning control.2. Connect ohmmeter to connector B 5 and ground. Display: infinite ohmsIf 0 - 5 ohms is displayed, check wiring harness for pinching and chafing damage.

[JDC55]

Loren,

Thanks! It probably is that sensor that has been giving me the problem.

I'll let you know how I make out.

[JDC55]

What would the procedure be for removing the sensor? It appears to be on the upper right hand side, just above the blower assembly. The problem is, it looks like it's right up against the kick panel with no way to get at it, short of pulling the whole heater-a/c assembly out. I pulled the airbag out, so I can get a finger on it, but that's about it.

I hope there's some easy trick I'm missing.

Thanks!

[JDC55]

Success! It was the sensor. It actually can be switched out without taking the heater out, but it's really snug. I know have knuckles that look like hamburger!

Thanks for your help.