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Home >> GMC >> 2009 >> Sierra 1500 4WD V8-4.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Data Link Connector >> Locations
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Data Link Connector: Locations



Wheels/Vehicle Underbody Component Views

Left Rear Frame and Underbody Components - 1 of 2




1 - Trailer Connector (UY7)
2 - Chassis Harness
3 - Camper/Trailer Harness
4 - Camper Trailer Blunt Cuts (UY2)

Left Rear Frame and Underbody Components - 2 of 2




1 - Rear Bumper
2 - Junction Block -Rear Lamps
3 - Data Link Resistor
4 - Trailer Connector (except MEX/EXP)

Rear Fram and Underbody Components (10 Series)




1 - Trailer Brake Control Relay (JL1)
2 - Trailer Brake Control Module (JL1)
3 - Trailer Connector (Except MEX/EXP)
4 - Fuel Pump Flow Control Module
5 - Data Link Resistor (Except LU3/LY6)

Rear Frame and Underbody Components (20/30 Series)

Left Rear Frame Rail (20/30 Series):




1 - Trailer Connector (except MEX/EXP)
2 - Trailer Brake Control Module (JL1)
3 - Trailer Brake Control Relay (JL1)

Rear Frame and Underbody Components (31 Series)

Right Rear Frame Rail (31 Series):




1 - Trailer Brake Control Relay
2 - Trailer Brake Control Module

Rear Frame and Underbody Components (JL4)




1 - Wheel Speed Sensor (WSS) -Left Rear
2 - Wheel Speed Sensor (WSS) -Right Rear



Passenger Compartment/Roof Component Views

Left Side of the Passenger Compartment Components (Extended/Crew Cab)




1 - Inflatable Restraint Roof Rail Module - Driver (ASF
2 - Rear Window Defogger Grid (C49)
3 - Seat Belt Pretensioner - Driver

Right Side of the Passenger Compartment Components (Extended/Crew Cab)




1 - Inflatable Restraint Roof Rail Module -Passenger (ASF)
2 - Data Link Resistor 2 (HP2)
3 - Seat Belt Pretensioner -Passenger



Instrument Panel/Center Console Component Views

Top of the I/P Components (CJ2)




1 - Air Temperature Sensor - Upper Left
2 - Air Temperature Sensor - Upper Right

Right Side of the I/P Components




1 - I/P Trim
2 - Junction Block - Right I/P

Below the Left Side of the I/P Components - 1 of 2




1 - I/P Trim
2 - Instrument Panel Cluster
3 - Data Link Connector (DLC)

Below the Left Side of the I/P Components - 2 of 2

Below the I/P:




1 - I/P Trim
2 - I/P Cluster Trim
3 - Floor Panel
4 - Junction Block - Left I/P (except MEX)
5 - Body Control Module (BCM)
6 - Transfer Case Shift Control Module (NQF/NQH)
7 - Fuse Block - I/P
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