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| 7
Way RV/caravan Connector |
| vehicules recreatifs
a loisirs auto-caravannes wohnmobilvermietung zwerfautos RVs |
As you can see in the illustration below
the back side of the connector body is labeled at each terminal. The labels are
listed below with the function assigned to that pin.
On the tow vehicle side with the
exception of 96-98 Ford and Dodge pickups and SUV's with factory installed
trailer wiring, wire color alone should not be relied on, always test and match
the function to the appropriate terminal.
On the trailer side RV's for the most
part are wired to match the connector colors. Any plug that has been changed or
extended, along with horse and utility trailers should be tested when replacing
for any reason to be sure the function matches the terminal.
It should be noted below that the center
terminal is labeled as an auxiliary circuit, most commonly used for backup
lights not a ground terminal as many try to make it.
Also after the connector diagrams
find more information on wire colors used by GM, Ford, and Dodge.
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| Wiring
Code 7 way Car End |
| # |
Color |
Gage |
Circuit
Function |
connector
interior |
| 1 |
white |
10 |
common ground |
![[7 way connector]](../images/gif/7wayce.gif) |
| 2 |
blue |
12 |
electric brake |
| 3 |
green |
14 |
tail/running lights |
| 4 |
black |
10 |
battery charge (+) |
| 5 |
red |
14 |
left turn/stop |
| 6 |
brown |
14 |
right turn/stop |
| 7 |
yellow |
14 |
auxiliary/back up |
| NOTE: #7 is the
center terminal and currently is most commonly used for backup lights. |
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| Wiring
Code 7 way Trailer End |
| # |
Color |
Gage |
Circuit Function |
connector interior |
| 1 |
white |
10 |
common ground |
![[7 way connector]](../images/gif/7wayte.gif) |
| 2 |
blue |
12 |
electric brake |
| 3 |
green |
14 |
tail/running lights |
| 4 |
black |
10 |
battery charge (+) |
| 5 |
red |
14 |
left turn/stop |
| 6 |
brown |
14 |
right turn/stop |
| 7 |
yellow |
14 |
auxiliary/back up |
| NOTE: #7 is the center terminal and
currently is most commonly used for backup lights. |
This chart should be used as a general guide only, you should always test
before connecting your wiring.
This chart also may not be accurate for vehicles with factory installed
trailer harnesses. In past 2-3 years manufacturers have begun to match the wire
colors to the code for the common 7 way RV connector. More on that after the
chart.
| Caution if your
vehicle has a diagnostic indicator that tells you when a lamp is burned
out or not functioning, you may need special wiring adapters and
testers. Not using these adapters may cause damage to the vehicle wiring
or computer. |
| function |
GM |
Ford |
Chrysler |
| left turn & brake lights |
yellow |
lt green w/orange stripe |
dk green |
| right turn & brake lights |
dk green |
orange w/blue stripe |
brown |
| tail lights |
brown |
brown |
black or black w/yellow stripe |
| back up lights |
lt green |
black w/pink stripe |
violet |
| ground - see note 1 |
black |
black or grey |
black |
| In addition to the above some
cars and trucks have a separate light for the brake light, most commonly
identified by amber turn lenses in the rear. Chrysler and Jeep may have
the separate light and use red lenses. If you have this type of wiring a
converter is required. |
| brake light |
lt blue or pink |
red w/green stripe |
white |
| Note 1: We recommend attaching
the trailer harness ground directly to the frame or a solidly attached
sheet metal part, using a screw or bolt. The single most common cause of
trailer lighting problems is a poor ground on the tow vehicle or
trailer. |
Notes about GM OEM wiring harness. Most GM vehicles except '99
& 2000 Silverados match the following.
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| GM trailer
wiring code |
| white |
ground |
| yellow |
left/brake |
| green |
right/brake |
| brown |
tail |
| light green |
backup |
| blue |
trailer brakes |
| red * |
12 volt + |
| * Pickups only:
since approximately 1996 the 12 volt + wire is orange. The orange and
blue wires are in a separate bundle taped to the wire harness that runs
down the frame on the drivers side. A white wire may also be found in
that bundle, it is a brake light wire which is not normally used for
trailer wiring. |
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Dodge tow vehicles with the
Factory Tow Package Brake Connector
Dodge vehicles with this package are equipped with a 15 amp fused power line
which is insufficient for 3 & 4 axle (6 or 8 brake) applications. For 3
& 4 axle (6 or 8 brake) applications a separate power wire should be
installed directly from the battery positive to the brake control and should
include an inline 30 amp
auto reset circuit breaker.
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Ford tow vehicles with the Factory
Tow Package Brake Connector
Ford vehicles with this package are equipped with a 20 amp fused power line
which is insufficient for 3 & 4 axle (6 or 8 brake) applications. For 3
& 4 axle (6 or 8 brake) applications a separate power wire should be
installed directly from the battery positive to the brake control and should
include an inline 30 amp
auto reset circuit breaker.
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NOTE: This online manual is a work in progress and is subject to change at any given time.
It is also a generic peace of work and is meant only as a general guide. Each
Caravan/RV is distinct and individual in it's own right, do not take anything
written here literally as it may or may not apply to the exact Caravan/RV you
will be using.
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