I've got a stuck vent flap in my scout, VCDS is showing code 01810 which is RH vent flap. It's stuck blowing cold air onto the driver.

The calibration proceedure in VCDS moves the other flaps, but no change on this one, appears to be stuck. How can I find it and un-stick it?

This problem coincided with two things. Change of the pollen filter and the battery getting low enough that it wouldn't start. When it didn't start all heater flaps started dancing. I'm not sure if this was the cause or just a symptom of the problem.

I'm still getting nowhere with this. A reset doesn't help, I currently have the bottom half of the dash apart, I can see three motors that are doing what they should, but I suspect there is another hidden which I can't see.

Does anyone have pictures or diagrams of the motors on the heater box and what they do?

I can see the recirc flap (right behind the glovebox) and it's working fine.

I can see a lower motor with an orange arm and it's working fine.

I can see an upper motor with a white cam and it is working fine.

But what can't I see and how can I get more access?

Found it.

Black motor with a black arm in a dark hole. The only colour is the blue plug and that faces the firewall. It's just left of the clutch pedal in RHD cars.

These servo motors have a DC 12v motor inside (two prongs on the plug) with two stages of worm gear reduction to the arm. Feedback for position is by a rotary pot on the drive gear of the lever arm.

This motor turns freely but it was at the extreme end of it's motion. I'll get a multimeter on it to check function as soon as I'm off baby sitting duty. There appears to be very little to go wrong with them.

P/N's on the servo motor:

1KO.907.511B

Sorted.

I don't know what the problem was, but the motor and feedback pot checked out fine with a multimeter. When manually moved off the stop and plugged into the left side loom, it worked fine. It then worked fine plugged into the right side and the calibration sequence progressed as expected.

I can only surmise that the flap somehow got stuck and in removing the motor to test it, I unstuck it.

A good result, and useful to have your explanation of what to look for to fix this fault.

Did you log on to ERWIN for technical information?

A good result, and useful to have your explanation of what to look for to fix this fault.

Did you log on to ERWIN for technical information?

Yes I like to post up a solution so the next guy finds more than just someone else with the same problem. I was a few hours away from an erwin subscription when I found the right motor. Managed to nut this one out alone.

Edited 11 May, 201313 yr by Kiwibacon