K Yukon/Denali 4WD V8-5.7L VIN R (2000)
Trailer Connector: Description and Operation
TRAILER/BRAKE CONTROLLER WIRING INFORMATION
Trailer Wiring
Important The trailer harness and fuses must be connected to the engine wiring harness junction block. The trailer harness circuits are identified in
the following table. Please take note of the maximum current ratings of the circuits.
Stop lamps and turn signal lamps are similar to the description in Exterior Lights Circuit Description, with the exception of the following conditions:
-
From the stoplamp switch, voltage is supplied to the turn/hazard switch on CKT 17 (WHT).
-
From the turn/hazard switch, voltage is supplied to the TRL L Turn or the TRL R Turn fuse on CKT 18 (YEL) or CKT 19 (DK GRN).
-
From the fuse, voltage is supplied to the trailer connector
Individual Conductors
CKT
ID #
Color
Description
22 (HD)
WHT
Ground, 70 Amp maximum current (HD)
22 (LD)
WHT
Ground, 25 Amp maximum current (LD)
47
DK BLU Trailer brake controller switch output
142
RED
Fuse output - Battery, 22.5 Amp maximum current
742
RED
Fuse output - Battery, 30 Amp maximum current
1324 (LD)
LT GRN Fuse output - backup lamps, 7.5 Amp maximum current (LD)
1624 (HD)
LT GRN Fuse output - trailer backup lamps, 7.5 Amp maximum current (HD)
1618
YEL
Fuse output - trailer turn/stop LH rear, 7.5 Amp maximum current
1619
DK GRN Fuse output - trailer turn/stop RH rear, 7.5 Amp maximum current
1620
LT BLU Fuse output - trailer CHMSL, 7.5 Amp maximum current
2109
BRN
Fuse output - trailer park lamp, 7.5 Amp maximum current
Z82 - Trailering Pigtail - Electrical Installation Instructions
Important Please consult your brake controller instruction on how to wire your controller with these circuits.
The brake controller pigtail and 40A B+ trailering MaxiFuse has been provided with the HD trailering option. Plug in the 6 Way connector into the
body wiring harness junction block which is located on the upper left of the drivers footwell.
Plug-in the 40 Amp B+ trailering MaxiFuse in stud #1 location of engine wiring harness junction block.
The brake controller jumper blunt cut circuits have been identified as follows:
Individual Conductors
CKT
ID #
Color
Description
47
DK BLU
Trailer Brake Controller Switch Output
142
RED
Fused Trailer Brake Controller Battery Feed
1620
LT BLU
Vehicle Stop Lamp Switch to Brake Controller Input
1850
BLK
Brake Controller Ground
2409
BRN
Brake Controller Illumination