Allison

Allison 3000 & 4000 Gen 4 Fault Code: P0562 Sys...

DIAGNOSTIC RESPONSE:Inhibits TCC Operation, DNA CIRCUIT DESCRIPTION:The Transmission Control Module (TCM) requires a switched ignition voltage input to operate. This switched ignition voltage signal originates from the ignition switch or...

Allison 3000 & 4000 Gen 4 Fault Code: P0218 Tra...

DIAGNOSTIC RESPONSE:Use default sump temperature CIRCUIT DESCRIPTION:The Transmission Fluid Temperature (TFT) sensor is incorporated into the internal wiring harness and measures the sump temperature. The TFT sensor is a thermistor...

Allison 3000 & 4000 Gen 4 Fault Code: P0123 Ped...

DIAGNOSTIC RESPONSE:Use default throttle values. Freezes shift adapts. CIRCUIT DESCRIPTION:The TCM may be calibrated to receive an analog Throttle Position Sensor (TPS) pedal position signal from a TPS. Throttle position...

Allison 3000 & 4000 Gen 4 Fault Code: P0122 Ped...

DIAGNOSTIC RESPONSE:Use default throttle values. Freezes shift adapts CIRCUIT DESCRIPTION:The TCM may be calibrated to receive an analog TPS pedal position signal from a TPS. Throttle position information comes from...

Allison 3000 & 4000 Gen 4 Fault Code: C1313 Ret...

DIAGNOSTIC RESPONSE:May inhibit retarder operation if not using J1939 datalink CIRCUIT DESCRIPTION:The TCM may be calibrated to receive a Retarder Modulation Request (RMR) signal from a retarder request sensor, sometimes...

Allison 3000 & 4000 Gen 4 Fault Code: C1312 Ret...

DIAGNOSTIC RESPONSE:Inhibits retarder operation if not using J1939 datalink CIRCUIT DESCRIPTION:The TCM may be calibrated to receive a Retarder Modulation Request (RMR) signal from a retarder request sensor, sometimes called...