Volvo Owners Club Forum - View Single Post - V70: Gearbox - Tg-81sc no comms

KBB · Mar 15th, 2019, 04:42

If scan tool is showing no comm with sub modules the I would be checking powers and grounds to those modules.

If you have been removing and replacing engine and transmission then there may be a missing ground.

Mar 15th, 2019, 04:42	#2
KBB Master Tech Last Online: May 18th, 2020 10:57 Join Date: Dec 2006 Location: On Contract Dubai Automotve Technical Academy	If scan tool is showing no comm with sub modules the I would be checking powers and grounds to those modules. If you have been removing and replacing engine and transmission then there may be a missing ground.