Apr 23, 2014.
U0107 can set if the battery voltage is low. Check to make sure that isn't an issue. Also.
It can also set if there is a short to B+ on the TAC module ground circuit. Check fuses for the circuits that are in the TAC module harness. Finally, this code can also be set if the TAC module ignition feed circuit is shorted to a B+ supply circuit. When the ignition switch is turned on, the TAC module is powered-up before the PCM. The code sets because no communication is detected by the TAC module from the PCM. You will need to check circuits for being shorted to a B+ supply.
Thursday, April 24th, 2014 AT 6:27 PM