Yukon Denali 4WD V8-6.0L Hybrid (2011)
Circuit Protection - Fusible Links
Special Tools
EL-39200 - Digital Multimeter (DMM)
For equivalent regional tools, refer to Special Tools See: Power and Ground Distribution/Tools and Equipment.
Note: When repairing a fusible link, fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient overload protection.
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is often located between or near the battery and starter or
electrical center. Use a continuity tester or a Digital Multimeter (DMM) at each end of the wire containing the fusible link in order to determine if it is
broken. If broken, it must be replaced with fusible link of the same gauge size.
Flat Wire Repairs
Flat Wire Repairs
The flat wire within the flex wiring harness is not serviceable. If an open or short exists within the flex wiring harness the complete harness must be
replaced.
Folded-Over Wire Repair
Folded-Over Wire Repair
Special Tools
EL-38125-10 - Splice Sleeve Crimping Tool
For equivalent regional tools, refer to Special Tools See: Power and Ground Distribution/Tools and Equipment.
The GM global wire repair strategy uses connector assemblies (pigtails) and terminated leads to repair wiring harnesses.
To reduce and manage GM Service Parts proliferation, the service pigtails and terminated leads are designed with the largest wire gauge size that can be
held by either the terminal or the connector housing.
The folded over wire repair technique, in which the copper wire strands are folded over before being installed into a splice sleeve, allows the service part
to be used when repairing a smaller gauge size wire in a vehicle. This technique has passed all GM testing standards.
The larger harness size wires (1) will be placed in one side of the splice sleeve and match the splice sleeve closely in size. The wires are moved into the
splice sleeve until they hit the stop (4) in the splice sleeve. The smaller harness size wires (2) will be placed in the other side of the splice sleeve. The
smaller harness size wires will be folded over (3) to match up with the splice sleeve size.
Use the folded over wire repair for:
Note: Increasing the amount of copper strands in the smaller gauge size will allow for a better crimp
*
Splicing wires of 0.35 mm or less (22, 24, 26 gauge sizes)
Note: Vehicle side needs to be of same or less gauge size (not greater than the service part's gauge size)
*
Splicing wires of different gauges
Use the Service Information (SI) connector end-views to determine:
*
Gauge size of wiring harness
*
Recommended Repair: Terminated Lead or Pigtail
The following table lists the acceptable variance within the gauge size
