609 Swan Ave
Hohenwald, TN 38462
Service Phone : 1-866-205-2621

IMPORTANT TECHNICAL SERVICE BULLETIN : 1ZP-K8A2M-11
IMMEDIATE ACTION REQUIRED
ISSUE

Potential for Sub-Optimal Grounding through Tow Vehicle Connection

MODELS IMPACTED

2014 – 2015 Oliver Legacy Elite and Elite II models.

INFORMATION

Oliver Travel Trailers was alerted that some trailers produced during 2014 and 2015 may
experience degraded braking due to a sub-optimal ground through the ball connection when
an optional anti sway hitch is installed. During the affected model years some Oliver models
relied upon providing a ground to the electric braking system through the connection
between the tow vehicle hitch and trailer frame. This usually provides sufficient grounding
capacity for the brakes to operate normally, however, a better method of grounding the
trailer would be to provide a grounding bond through the 7-pin ground wire to the trailer
frame. To our knowledge as of this writing, no person or equipment has suffered injury or loss
due to this condition.

RESOLUTION

Owners with impacted year models should have the camper checked to ensure that the
camper has a good bonding ground through the 7-pin connection.
Inspection and corrective action are only to be performed by qualified service technicians.
For assistance in locating a qualified service technician or for any questions regarding this
Technical Service Bulletin, contact the Oliver Travel Trailer Service Department using the
information provided.

TESTING PROCESS FOR DETERMINING WHETHER OR NOT THE CAMPER IS
PROPERLY GROUNDED THROUGH THE 7-PIN CONNECTION
1. Using a multimeter set to Ohms to test for continuity, connect the red lead to the 7-pin
ground connection. Connect the black lead to the frame directly behind the bulldog
coupler.
OUTSIDE

12V Power

Tail & Running Lights

Right Turn & Stop

Left Turn & Stop

Brake Controller Output

Ground

Reverse Lights

2. The multimeter should display 0 and beep
or light up based on the type of multimeter,
showing a complete path and proper
bonded ground with the travel trailer frame.

STEP 5

3. If the multimeter displays a 0 and beeps
or lights it means the frame is properly
bonded with the 7-pin ground wire, no
further action is required. Please fill out
the inspection reply card and mail to the
address below using the postage provided
return envelope.
4. If the multimeter DOES NOT beep and
displays (OL) it means the circuit is open. In
this case the ground is only being provided
by the connection between the trailer
hitch and ball. This is an approved method
of grounding however when an optional
anti sway device is installed this ground
could be less than optimal and could lead
to degraded brake operation. To ensure
optimal connectivity please proceed to the
corrective action steps below for bonding
the trailer frame to 7-pin ground.

Corrective action steps below should be performed by a qualified RV
service technician. For assistance in locating a qualified RV service
technician or for any questions regarding this Technical Service Bulletin,
contact the Oliver Travel Trailer Service Department at 866-205-2621.

POTENTIAL ITEMS NECESSARY FOR CORRECTIVE ACTION
These items should be commonly available at qualified RV service centers.
1. 3-Port Connector
2. Wire Strippers
3. Flat Head Screwdriver
4. 12ga. White Wire (Cut to Length)
5. Butt Splice, if required to lengthen ground wire for proper connection

RV SERVICE CENTER LABOR TIME GUIDE
•

Perform Test, Ground Good: 0.5 hrs Labor, No Parts, No Shop Supplies

•

Perform Test and Repair Ground: 1.0 hrs Labor, $5.00 in Parts, No Shop Supplies

*Warranty repairs are not subject to Sales & Use Tax
For Payment or assistance please contact the Oliver Travel Trailers Service
Department at 866-205-2621 or via email at [email protected]
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CORRECTIVE ACTION INSTRUCTIONS FOR BONDING TRAILER FRAME TO
7-PIN GROUND
1. Unplug all 30-AMP power cords from camper, including the optional 30-AMP convenience
connection, if installed.
2. Go to the main circuit breaker panel located below the dinette and turn off the main 30AMP circuit breaker.
3. Locate the 7-pin (White) ground wire located inside the trailer under the rear dinette seat
access panel.
4. After locating the white ground wire cut the wire in two and use a 3-Port connector to
reconnect the two wires.
5. Using the additional port in the 3-Port connector run an additional white 12ga wire from
the port over to the ground bar.
6. Using the multimeter, test the ground by performing the test procedure outlined above.
7. If the multimeter displays a 0 and beeps/lights it means the frame is properly bonded with
the 7-pin ground wire, no further action is required. Please fill out the inspection reply
card and mail to the address below. If this test fails contact the Oliver Travel Trailer Service
Department for further guidance.
8. Enable main 30-AMP circuit breaker and reconnect external power.

Please fill out the included inspection reply card and mail to address
below using the postage provided return envelope. If the inspection
and corrective action has been preformed by a third-party qualified RV
technician, please include a copy of the receipt for reimbursement.
OLIVER TRAVEL TRAILERS
ATTN: BULLETIN DEPT.
609 SWAN AVE
HOHENWALD, TN 38462

You can also view this notice online and submit the Inspection Card by visiting :

https://olivertraveltrailers.com/topic/7pin-ground/

609 Swan Ave, Hohenwald, TN 38462
Service Phone: 1-866-205-2621 | Email: [email protected]
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