TT 87-16-01

Tech Tips
Date: June 3, 2016
TT 87-16-01
2016-2017 Jetta, Beetle, Passat A/C Inoperative, Sanden A/C
Compressor Clutch, Basic Setting Adaptation
October 21, 2016: Update to Model, Model Year Applicability
and Service Information.
MY 2016 Jetta and Beetle have introduced an A/C clutch on the compressor pulley. These compressors
will also continue to have an N280 compressor valve controlling the compressor.
Before replacing the compressor for an inoperative condition be sure the compressor clutch is engaging or
operational. If the A/C clutch is not engaging the compressor, diagnosis of the A/C clutch must be
performed.
For manual A/C controllers (Jetta, Beetle): before
starting diagnosis for the A/C clutch, check that
the A/C control module magnetic clutch is
enabled.
Go to Control module OBD and check adaptation
channel 9 is set to 1.
Note:
If the A/C control module has recently been replaced you must perform the adaptation test plan under
address 08.
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© 2016 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual
property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this
document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these
materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.
Service Information
Basic settings for Jetta and Beetle with the new
design A/C clutch is performed under the test plan
tab using adaptation. Recently all A/C modules
must be adapted to enable the clutch (See Figure
1).
Figure 1
To check if the A/C clutch is enabled, go to the
OBD screen. Select 08 Air Conditioning and select
adaptation (See Figure 2).
Under the results tab input channel 9 and select
channel to display the current status.
Disabled =0
Enabled =1
If the A/C clutch is inoperative after verifying the
adaptation, further diagnosis is required. The
wiring to the N280 from the A/C clutch relay does
not provide feedback to the A/C controller for open
or shorted wiring.
Figure 2
Using ODIS always check the A/C shut off code(s)
measured values and that the system is fully
charged before starting any diagnosis.
Page 2 of 2
© 2016 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual
property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this
document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these
materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.