4.6.8 Reversing Lamps, Rear View
Camera, Reversing Alarm (Manual
Transmission)
The reverse lamps are activated by the reverse
switch on the transmission. A marginal increase
in current (via a relay or buffered electrical input)
is permissible to provide power to a rear-view
camera, auxiliary reverse lighting, or an audible
warning device.
4.6.9 Trailer Towing - Lighting
Connections
WARNING: Installation of aftermarket
trailer tow electrical kits or directly
splicing into the vehicle wiring in order to
install trailer lamps or other electrical
devices may overload the system and
impact the operation of other vehicle
systems.
Ford recommends that all trailer tow electrical
connections use the genuine Ford accessory trailer
tow kit.
Trailers Equipped with LED (light emitting
diode) lamps
Most trailers, caravans, camper trailers etc are now
fitted with LED lamps. There are many different
sizes, configurations & quality in the market place.
The Trailer Tow Module (TTM) can support pure
LED trailer lamps as long as each circuit exceeds
500mA, below this and the system will not detect
a trailer has been connected and shuts down all
outputs (sleep mode). It is recommended to target
a 550mA minimum load to allow for system
tolerances.
If the LED lamps on the trailer fall outside specific
tolerances, customers can experience the
following symptoms on the vehicle when LED
trailer lamps are connected to the vehicle:
• LED trailer lamps flickering when lamps are not
in use
• DAT (Driver Aid Technology) not being disabled
• Rear park sensors (where fitted) continually
fire in Reverse gear when a trailer is connected
to the vehicle
• Vehicle does NOT acknowledge that a trailer
has been connected when it has (either through
Icon on centre screen OR message on the
instrument cluster Multi-Function display)
• "Check trailer park lamps" OR "Check trailer
brake lamps" warnings appear on the
instrument cluster Multi-Function display
In order to correct this, supplemental load resistors
would need to be used to meet the target system
tolerances.
CAUTION: Do not connect the patch
harness to the vehicle when the trailer is
not connected.
NOTE: The trailer patch harness is available from
your Ford authorised dealer.
NOTE: The FORD dealer network can supply a
RESISTOR PATCH HARNESS that connects
between the vehicle & the trailer to address these
issues (pictured below).
FORD RANGER 2022
Date of Publication: 06/2022
Composed on:Thu Oct 13 04:01:02 BST 2022
4 Electrical
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