Lee-Howdle
Member Since: 20 Aug 2019
Location: Stafford
Posts: 13
  
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| HVAC Heat/Cool Learn Actuator Limits Stepper motor init |
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Where do I find these programs within the system on the IID app as I have read the manual but can't seem to find it anywhere within the app any help will be greatly appreciated
I've replaced a couple of the motors but can't seem to clear the fault B1B77-00 for the front right air blend stepper actuator.
4.7.10 HVAC Heat / Cool
Learn Actuator Limits L322-10, L319-10, L320-10)
This routine is used when an actuator is removed or replaced. It is also required when the HVAC ECU
is replaced.
Stepper motor initialisation (L319-10, L320-10, L405, L494)
This routine is used when a stepper motor is removed or replaced. It is also required when the HVAC
ECU is replaced. I now have a IID tool if anyone needs some assistance around the Stafford area.
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 21st Apr 2020 1:17 pm |
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lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
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Isnt there a self test thing you can do on the unit itself, ie press xy buttons for so long and it does the test?
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| 21st Apr 2020 3:05 pm |
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Lee-Howdle
Member Since: 20 Aug 2019
Location: Stafford
Posts: 13
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Yes I tried the Econ and recirculation button which run through it self test. I’m starting to lean towards A wiring harness fault. I have tested all the buttons and they appear to be functioning correctly through the IID. I’ve got the motors out and I’m testing them whilst not fitted in place it seems like the driver-side blend motor is only receiving a signal from the passenger-side blend motor, Due to the fact that they cannot operate too far out of sync i.e. the driver-side motor is only moving a small amount When operating the passenger-side temperature switch through its full range and still only moving a small amount when operating the drivers side temperature switch through its full range.
that’s all I can think of  I now have a IID tool if anyone needs some assistance around the Stafford area.
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| 21st Apr 2020 3:46 pm |
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