Category Archives: OBDII Network Codes

U2021

U2021 OBD Code Definition:
U2021 Invalid /fault data received (Non SCP)
U2021 OBD Code Description: Continue reading →

U1020

U1020 OBD Code Definition:
U1020 SCP (J1850) Invalid or Missing Data for Air Conditioning Clutch
U1020 OBD Code Description: Continue reading →

U2050

U2050 OBD Code Definition:
U2050 SIR PPS/CPS Communications Link malfunction
U2050 OBD Code Description: Continue reading →

U2102

U2102 OBD Code Definition:
U2102 More Controllers on Bus than Programmed
U2102 OBD Code Description: Continue reading →

U2106

U2106 OBD Code Definition:
U2106 Lost Comm with Trans Control System
U2106 OBD Code Description: Continue reading →

U2103

U2103 OBD Code Definition:
U2103 Fewer Controllers On Bus Than Programmed
U2103 OBD Code Description: Continue reading →

U2107

U2107 OBD Code Definition:
U2107 Lost Communications with Body Control System
U2107 OBD Code Description: Continue reading →

U2151

U2151 OBD Code Definition:
U2151 Navigation ECU Communication Malfunction
U2151 OBD Code Description: Continue reading →

U2500

U2500 OBD Code Definition:
U2500 (CAN) Lack of Acknowledgement From Engine Management
U2500 OBD Code Description: Continue reading →