6

Advanced Technical Information

Cayenne, Macan
1301
6696

Trailer Control Unit and Electronic
Brake Controller Information

Binder - Advanced Technical Information
This bulletin replaces bulletin Group 6,
#1301, dated 1-18-13.

Vehicle Type:

Cayenne (All), Macan (All)

Model Year:

As of 2003 (3)

Information: A Cayenne with optional equipment no. 1D6 will come with a Trailer hitch receiver and wiring up to the receiver hitch that includes a control unit to operate the trailer parking lights, turn signals and brake lights. The
Cayenne is also pre-wired for a brake controller.

You will need to do the following to hook up the trailer electrics and/or an electric brake controller:

> Check the programming of the trailer control unit
> Obtain a plug connector that adapts the vehicle trailer harness to the trailer electrical plug
> Obtain a brake controller (locally sourced) if the trailer has electric brakes
> Obtain four connectors and one plug housing from the Cayenne connector kit
1. C
heck the coding of the trailer control unit. First hook up the PIWIS Tester and scan all of the control
units. If there are faults in the vehicle electrical control unit, the trailer control unit will not work. Check
the nature of the faults, repair and clear the fault memory of that control unit first. Next select the
trailer control unit. It should be coded to “USA” and “With detachable trailer hitch” or “Trailer connection
device”.
2. Obtain a connector that adapts the vehicle’s trailer harness
to the trailer electrical plug. Refer to Parts Information
Bulletin Group 9, #D10 “Cayenne Trailer Plug & Adapter” for
more information.
3. O
btain a brake controller if the trailer has electric brakes.
The plug for the brake controller is prewired into the Cayenne’s harness. It is located above the parking brake pedal
in 9PA and above the OBDII connector in 92A, 9YA, and
95B. Note that the plug may be covered in foam from the
factory. See Figures 1 and 2.
3.1 R
eference the applicable Wiring Diagram when installing a
brake controller. Make sure the vehicles electrical connections match that of the brake controller.

Figure 1

3.2 9
PA: Fuse F19 (30A) in the right side dashboard fuse panel supplies power to the brake controller. 92A:
Fuse F5 (25A) in the right side dashboard fuse panel supplies power to the brake controller.

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AfterSales

August 14, 2017
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6

Cayenne, Macan
6696 1301

Information:
(cont’d)

Advanced Technical Information

3.3 O
btain four connectors and one connector housing from
the Cayenne connector kit. You could also use four of part
numbers, 000 979 228 (Connector) and one of 1J0 972 782
(plug housing) from Volkswagen. Install the wire connectors
on the brake controller wires then install into plug housing.
See Figure 3.

3.4 Plug in brake controller into the vehicle’s brake controller
connector.
Important Notes:
> Cayenne models up to and including MY’05. The maximum
output for the trailer lights is 50 watts.
> MY’06 and higher models have a maximum output of
100 watts.
> MY’08 (mid year and up) have the capability of utilizing
LED trailer light technology.
> All control units are backwards compatible, meaning the newest
control unit is compatible with the oldest vehicle.
> If you are installing a hitch kit, the trailer hitch mounting bolts
must be re-torqued after the first 300 miles of operation.
Reference:

Note: Some of this information may also be found in PIWIS.

Figure 2

Figure 3

Cayenne Technical Manual Diagnosis Part 2 (Repair Group 40 to 66), Group 0:
>
Repair: 66 Trailer Hitch
Cayenne Technical Manual, Group 9 Circuit Diagrams:
> 97 84 – Fuse Carrier
> Sheet 22, Trailer Hitch Control Unit
Cayenne Technical Manual, Group 0 Diagnosis, Maintenance:
> 03 – Trailer hitch socket maintenance - check operation
Cayenne Technical Manual, Group 6 Diagnosis:
> 669655 Eliminating symptoms in body interior:
Replacing trailer control unit (message in instrument cluster: trailer illumination defective) Cayenne Technical
Bulletins:
> Group 6 #27/07>Trailer Hitch (I-no. 1D6) 1st Generation
> Group 6 #1/06>Trailer Hitch Installation Instructions (I-no. 1D6) 2nd Generation
Parts Information

Group 10, #D7 – Cayenne Ball Carrier Specs

Group 9, #D10 – Cayenne/Macan Trailer Plug

August 14, 2017
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©2017 Porsche Cars North America, Inc.

Advanced Technical Information

Cayenne, Macan
1301
6696

6

USA Trailer Hitch System Cayenne E3

9PA, 92A, 95B Trailer CU Location

Dr. Ing. h.c. F. Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®,
Cayman®, Macan®, Panamera®, Speedster®, Spyder®, Tiptronic®, VarioCam®, PCM®, PDK®, 911®, RS®, 4S®, 718®, 918 Spyder®, FOUR UNCOMPROMISED®, and the model numbers and
distinctive shapes of the Porsche automobiles such as, the federally registered 911 and Boxster automobiles. The third party trademarks contained herein are the properties of their respective owners.
Porsche Cars North America, Inc. believes the specifications to be correct at the time of printing. However, specifications, standard equipment and options are subject to change without notice. Some
options may be unavailable when a car is built. Some vehicles may be shown with non-U.S. equipment. Please ask your authorized Porsche dealer for advice concerning the current availability of options
and verify the optional equipment that you ordered. Porsche recommends seat belt usage and observance of traffic laws at all times.

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