Allison

Allison 1000 & 2000 Gen 4 Fault Codes: P0614 To...

Allison 1000 & 2000 Gen 4 Fault Codes: P0614 Torque Control Data Mismatch – ECM/TCM CIRCUIT DESCRIPTION:Shift Energy Management (SEM) allows the Transmission Control Module (TCM) to request torque reduction...

Allison 1000 & 2000 Gen 4 Fault Codes: P0606 Co...

Allison 1000 & 2000 Gen 4 Fault Codes: P0606 Controller Internal Performance – Not Enabled for Pickups or Med Duty “04” CIRCUIT DESCRIPTION:The Transmission Control Module (TCM) completes numerous scheduled...

Allison 1000 & 2000 Gen 4 Fault Codes: P0602 TC...

Allison 1000 & 2000 Gen 4 Fault Codes: P0602 TCM Not Programmed CIRCUIT DESCRIPTION:At the power up and after clearing codes, the Transmission Control Module (TCM) performs a self-test to...

Allison 1000 & 2000 Gen 4 Fault Codes: P0563 Sy...

Allison 1000 & 2000 Gen 4 Fault Codes: P0563 System Voltage High CIRCUIT DESCRIPTION:The Transmission Control Module (TCM) requires a switched ignition voltage input to operate. This switched ignition voltage...

Allison 1000 & 2000 Gen 4 Fault Codes: P0562 Sy...

Allison 1000 & 2000 Gen 4 Fault Codes: P0562 System Voltage Low CIRCUIT DESCRIPTION:The Transmission Control Module (TCM) requires a switched ignition voltage input to operate. This switched ignition voltage...

Allison 1000 & 2000 Gen 4 Fault Codes: P0561 Un...

Allison 1000 & 2000 Gen 4 Fault Codes: P0561 Unrealistic Variations in Vehicle System Voltage CIRCUIT DESCRIPTION:The Transmission Control Module (TCM) requires a switched ignition voltage input and a direct...