Centre High Mount Stop Lamp (Chmsl) - Canopy Fitment - High Level Vehicles - Ford RANGER 2015 Body And Equipment Mounting Manual

4.3.13 Centre High Mount Stop Lamp
(CHMSL) - Canopy Fitment - High
Level Vehicles
WARNINGS:
The maximum current load that can be
applied to the CHMSL circuit is 1.72A for
incandescent globes, and 0.38A for LED
lamps. Do not exceed the rated load.
Make sure all wiring is insulated and
routed securely.
NOTE: The fitment of a canopy to high level
vehicles equipped with a combined CHMSL /
Cargo Lamp requires that the cargo lamp feature
be disabled.
NOTE: Disable the original vehicle mounted
CHMSL if the canopy CHMSL is intended to be
the primary CHMSL.
NOTE: The CHMSL circuit is pulse width
modulated (PWM).
NOTE: Check the operation of the CHMSL prior
to customer handover.
When fitting a canopy to vehicles equipped with
a combined CHMSL / Cargo Lamp, the lamp
housing may be impacted by the canopy. Check
the canopy to CHMSL clearance, and if required,
follow the below procedure.
A replacement CHMSL (without cargo lamp
function) needs to be installed. A patch harness
with a 2-pin connector is then spliced into the
vehicles CHMSL circuit wiring allowing a canopy
with an integrated CHMSL to take a stop lamp
circuit feed from the 2-pin connector. The original
3-pin connector is then taped back.
Follow the steps to install the replacement
CHMSL lamp housing:
1. Remove the combination CHMSL / Cargo
Lamp following the workshop manual
instructions.
NOTE: When cutting off the stop lamp circuit
wires from the 3-pin CHMSL connector, stagger
the cuts to allow for cleaner and less bulky splice
joins.
2. Locate the 3-pin CHMSL / Cargo Lamp
Connector. Cut off the stop lamp circuits (pin
1 yellow-grey, pin 2 black-violet) leaving the
violet wire (pin 3) connected to the 3-pin
CHMSL connector.
3. Tape back the 3-pin connector with the violet
coloured wire.
4. Splice the replacement 2-pin connector and
patch harness to the cut wires:
1. Yellow + Grey wire to Yellow + Grey wire.
2. Black + Violet wire to black + Violet wire.
5. Insulate the spliced joins with heat shrink.
6. Route the canopy CHMSL wiring through a
suitable grommet into the passenger
compartment, route it behind the trim panels
and connect it to the replacement 2-pin
connector.
FORD RANGER 2015
7. Install the replacement CHMSL to the vehicle
following the workshop manual instructions.
Date of Publication: 02/2017