Connector Locations

Harness Routing Views

Chassis Harness Routing (Except LY6/LMM/HP2)




1 - X300
2 - X408 (UD7)
3 - G401
4 - J423 (except LU3)
5 - J331
6 - Fuse Block - Underhood X3
7 - X115
8 - X102 (JL1)
9 - J338 (except LU3/LMG)
10 - J300
11 - G300

Chassis Harness Routing (LY6/LMM except 31 Series)




1 - X300
2 - X408 (UD7)
3 - Trailer Connector (UY7)
4 - J411 (JL1)
5 - G401
6 - J331
7 - Fuse Block - Underhood X3
8 - X115
9 - X102 (JL1)
10 - J300
11 - G300

Chassis Harness - Front Engine Compartment (31 Series)




1 - X102 (JL1)
2 - Fuel Pump Relay - Secondary (LY6 without NQZ)
3 - Fuse Block - Underhood
4 - X126

Driver Door Harness Routing




1 - Door Frame
2 - Fuse Block - I/P X4
3 - J502 (YE9 without AN3)
4 - X500 (YE9 without AN3/DL3)
5 - X502 (ASF without YE9 or with AN3)

Engine Harness Routing - Left Side (4.3L)




1 - Throttle Body
2 - G107
3 - Transmission
4 - X300
5 - X109
6 - X110 (NQG/NQH)
7 - Fuse Block - Underhood X2

Engine Harness Routing - Left Front Side (4.8L/5.3L/6.0L/6.2L except LFA/HP2)




1 - Air Intake Duct
2 - X111
3 - Fuse Block - Underhood X2
4 - X109
5 - X110 (NQF/NQG/NQH)
6 - Engine Control Module (ECM) X2
7 - Engine Control Module (ECM) X1
8 - G102
9 - J105

Engine Chassis Harness Routing - Top Front (Diesel)




1 - Battery - Right
2 - Fuse Holder
3 - X127
4 - X108
5 - X107
6 - X123 (PTO)
7 - Fuse Block - Underhood
8 - X109
9 - Battery - Left
10 - Engine Control Module (ECM)
11 - Transmission Control Module (TCM)

I/P Harness Routing - Engine Compartment (Except HP2)




1 - G110 (XA7)
2 - J113 (NQH)
3 - Fuse Block - Underhood X5
4 - Fuse Block - Underhood X4
5 - Left Front Fender
6 - X103
7 - X109
8 - X115