To determine if the electrical fault is on the vehicle
side or trailer side of the trailer wiring harness
connection, do the following:
1. Disconnect the trailer wiring harness from the
vehicle.
2. Turn the ignition OFF.
3. Wait ten seconds, then turn the ignition back
to RUN.
4. If the CHECK TRAILER WIRING message
re-appears, the electrical fault is on the
vehicle side.
If the CHECK TRAILER WIRING message
only re-appears when you connect the trailer
wiring harness to the vehicle, the electrical
fault is on the trailer side.
SERVICE TRAILER BRAKE SYSTEM – This
message will be displayed when there is a problem
with the ITBC system. If this message persists
over multiple ignition cycles there is problem with
the ITBC system. Take your vehicle to an
authorized GM dealer to have the ITBC system
diagnosed and repaired.
If either the CHECK TRAILER WIRING or
SERVICE TRAILER BRAKE SYSTEM message is
displayed while you are driving your vehicle,
you no longer have power available to your trailer
brakes. When traffic conditions allow, carefully
pull your vehicle over to the side of the road and
turn the ignition off. Check the wiring connection
to the trailer and turn the ignition back on. If either
of these messages continues, either your
vehicle or your trailer needs service.
An authorized GM dealer may be able to diagnose
and repair problems with your trailer. However,
any diagnosis and repair of your trailer is not
covered under your GM Warranty. Please contact
your trailer dealer for assistance with trailer
repairs and trailer warranty information.
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Summary of Contents for 2007 Silverado
Page 6: ...These are some examples of symbols that may be found on the vehicle 6 ...
Page 24: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 24 ...
Page 114: ... NOTES 114 ...
Page 208: ... NOTES 208 ...
Page 212: ...Instrument Panel Overview Instrument Panel Overview Base Uplevel version 212 ...
Page 376: ... NOTES 376 ...
Page 647: ...Engine Drive Belt Routing A Air Conditioning Compressor V6 Engines V8 Engines 647 ...