A451408 2033412-

Technical Service Bulletin
45 ABS warning light on with additional warning lights on (EPB / TPMS / EPC / MIL) - wire harness damage
45 14 08 2033412/3 February 11, 2014. Supersedes Technical Service Bulletin Group 45 number 13-07 dated
September 25, 2013 for reasons listed below.
Model(s)
Year
A4/S4
2009 - 2013
A5/S5
2008 - 2013
A5/S5
Cabriolet,
2010 - 2013
Q5
2009 - 2013
VIN Range
Vehicle-Specific Equipment
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
3
-
Revised header data (Removed model year)
Revised Service (Updated for clarity)
Revised Warranty (Added TUs)
2
9/25/2013
Revised title
Revised header data (Added customer codes and DTCs)
1
3/27/2013
Initial publication
• The customer may complain of one of the following conditions:
• Steering wheel does not lock.
• Various warning lights are on.
• Steering feels stiffer than usual.
• The engine cannot be switched off.
• The ignition key cannot be removed.
• There are DTC entries present in the system (either static or sporadic):
• DTCs with description “Brake control module - no signal/communication” are present in several control
units.
• DTC 01316 (Brake control module - no signal/communication)
• DTC U012200 (ESP - no signal/communication)
• DTC U012100 (ABS control module - no communication)
© 2014 Audi of America, Inc.
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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
Audi 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.
Technical Service Bulletin
• One or more of the following DTCs is stored in the ABS control module, J104 (address word 03):
- DTC 00290 (008 - ABS Wheel Speed Sensor, LR-G46, Incorrect signal)
- DTC 00290 (012 - ABS Wheel Speed Sensor, LR-G46, Electrical fault in circuit)
- DTC 0283 (008 – Left Front ABS Wheel Speed Sensor-G47, Incorrect signal)
- DTC 0283 (012 - Left Front ABS Wheel Speed Sensor-G47, Electrical fault in circuit)
• This condition does not result in any drivability concerns. The steering system is fully connected.
Technical Background
The insulation for the ABS wheel speed sensor
is damaged in production. Over time, this can
lead to corrosion on the wires and restricted
functions with the ABS control module. Only the
wires in the left bulkhead grommet (Figure 1)
are affected.
Figure 1. Left front fender is removed to show the left bulkhead
grommet
Production Solution
Improved installation procedure at the factory.
© 2014 Audi of America, Inc.
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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
Audi 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.
Technical Service Bulletin
Service
There are two different types of service actions based on the two types of DTC entries that can be found in the
system.
For vehicles with the DTC description “Brake Control Module - No signal/communication” present in
several control units, proceed as follows:
1. Perform a voltage drop measurement on terminal 30 (supply voltage for ABS control unit) under load (as
described below). For the pin assignment, see Elsa wiring diagram.
Proposed voltage drop measurement (using an A4 as an example):
• Verify the fuse (SC6) is good.
• Disconnect T38a connector from ABS control unit.
• Apply a load with a 21W rating (1.7 A = 21 W) between pin 7 (T38a) and chassis ground. This will allow a
precise voltage drop measurement across the completed circuit.
• Set the digital multi-meter to DC Volts (Direct Current Voltage)
• Connect the black multi-meter lead to pin 7 (T38a) and connect the red measuring lead to fuse SC6 while
keeping the fuse in the socket. This will measure the voltage drop in the wiring between the fuse and pin 7
(T38a).
• If the voltage drop measures over 0.3 V, the
wiring loom around the grommet must be
checked (Figure 2).
Figure 2. Affected area of the left front wiring loom behind
the fender
Tip: For better access to all sections of the wiring loom, the wheel arch liner and the windscreen
washing reservoir must be removed.
© 2014 Audi of America, Inc.
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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
Audi 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.
Technical Service Bulletin
2. If damage is found, make notes of damage in
repair order:
• Measure the distance from the grommet
front side (Figure 3, point 1) to the point
of damage point (Figure 3, point 2).
Include this measured distance in the
repair order comments.
Figure 3. Measuring point of damage in relation to the end of
the grommet
• Note the grommet and original harness
position from inside the passenger
compartment (Figure 4).
Figure 4. Grommet position photo, taken from inside the
passenger compartment.
3. Repair the damaged cable in the wiring loom using the VAS1978B wiring harness repair kit.
4. Remove the sections of the individual cable where the copper wires are black or corroded.
5. Pull back the insulation for the complete wiring loom, for a distance of about 40 cm from the grommet towards
the front of the vehicle, and inspect for additional damage or corrosion.
© 2014 Audi of America, Inc.
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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
Audi 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.
Technical Service Bulletin
For vehicles with the DTC description “ABS Wheel Speed Sensor - Incorrect signal or Electrical fault in
circuit” present in multiple control units, proceed as follows.
1. Perform the same measurements as above using the correct pin/fuse location listed in Elsa for the affected
ABS wheel speed sensor.
2. Repair any damage found and ensure the black or corroded wires are removed.
Warranty
Claim Type:
Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin
is informational only.
Service Number:
9715
Damage Code:
0015
Labor Operations: Check ABS control unit
Diagnostic Time:
4545 0199
30 TU
Remove and install front wheel liner
6616 1900
40 TU
Remove and install windscreen washer reservoir
9260 1951
50 TU
Remove and install tray under dashboard
6818 1900
See Elsa
Remove and install A pillar trim
7057 1905
See Elsa
Check front left wiring loom on inside and outside
9715 0199
70 TU
Repair wiring loom (note number of cables)
9709 41xx
See Elsa
GFF
0150 0000
Time stated
on diagnostic
protocol
(MAX 80 TU)
Road test prior to service procedure
0121 0002
10 TU
Road test after service procedure
0121 0004
10 TU
Technical diagnosis at dealer’s discretion
(Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)
Claim Comment:
As per TSB # 2033412/3
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.
© 2014 Audi of America, Inc.
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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
Audi 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.
Technical Service Bulletin
Required Parts and Tools
Tool Description
Quantity
VAS 1978B – Wiring Harness Repair Kit
1
Additional Information
All parts and service references provided in this TSB (2033412) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.
© 2014 Audi of America, Inc.
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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
Audi 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.