Allison 1000 & 2000 Gen 4 Fault Codes: U1301 J1850 (Class 2) Serial Data Communication Link Low CIRCUIT DESCRIPTION:Applications that...

Allison 1000 & 2000 Gen 4 Fault Codes: U2104 CAN Bus Reset Counter Overrun CIRCUIT DESCRIPTION:J1939 is the protocol currently...

Allison 1000 & 2000 Gen 4 Fault Codes: U2105 CAN Bus ECM Error CIRCUIT DESCRIPTION:J1939 is the protocol currently used...

Allison 1000 & 2000 Gen 4 P0719 Brake Switch ABS Input Low CIRCUIT DESCRIPTION:If the vehicle is equipped with anti-lock...