Diagnostic Aids

When class 2 serial data circuit is shorted to ground, DTC U1300 will be set. If DTC U1300 exist go to DTC U1300: CLASS 2 DATA LINK SHORTED TO GROUND  . When class 2 serial data circuit is shorted to power, DTC U1301 will be set. If DTC U1301 exists, go to DTC U1301: CLASS 2 DATA LINK SHORTED TO POWER  .