Check for Short in Chevy Bolt Harness
This bulletin applies to 2017 Chevy Bolt EV vehicles. The MIL may be on and the vehicle is only able to run at a maximum of 32 mph. The technician may find DTC P2798 set.
The condition may be caused by a damaged wire insulation causing a short to ground or corrosion in the command signal line of G5 transmission fluid pump harness. Do not replace the fluid pump for this condition until the wiring harness has been validated not to be the cause.
Inspect the repair the G5 harness. Make sure the harness is routed properly and is not resting on any components. Remove the left front wheel well liner for access. Disconnect the transmission fluid pump electrical connector and inspect the harness for damage. Repair as needed.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.