Overview:Fault Code 16 indicates the Shift Controller and the Transmission Controller are unable to communicate. Detection:Starting at key on and throughout operation, the Shift Controllerconstantly communicates with the Transmission Controller. If a communication failure occurs for more than 5 seconds, Fault Code 16 is set. Fallback:This fault causes an in-place fallback while operating and a failure during system initialization. Possible Causes:1) Vehicle Harness2) Transmission Controller3) Shift Controller Shop Talk:Key on. If the fault is present, the system should automatically detect the problem and set the code. If the fault is not present at key on, operate the vehicle and attempt...

Overview:Fault Code 17 indicates an electrical failure of the relay that allows the engine to start after start-up conditions are met. Detection:Starting at key on and throughout operation, the Shift Controllerconstantly measures the circuit. If a condition of short to battery, short to ground or open circuit is detected, Fault Code 17 is set. Fallback:The Start Enable Relay has no fallback; however, if the failure occurred before the engine was started, it is possible the engine will not start. Possible Causes:1) Relay Coil Open2) Vehicle Harness3) Shift Controller4) Operator too quick on key (not waiting for a “N”) Shop Talk:Key...

Overview:Fault Code 17 indicates an electrical failure of the relay that allows the engine to start after start-up conditions are met. Detection:Starting at key on and throughout operation, the Shift Controllerconstantly measures the circuit. If a condition of short to battery, short to ground or open circuit is detected, Fault Code 17 is set. Fallback:The Start Enable Relay has no fallback; however, if the failure occurred before the engine was started, it is possible the engine will not start. Possible Causes:1) Relay Coil Open2) Vehicle Harness3) Shift Controller4) Operator too quick on key (not waiting for a “N”) Shop Talk:Key...

Overview:Fault Code 26 indicates the clutch is not performing as expected. The Transmission Controller detected excessive clutch slip. Detection:When the transmission is in gear and the clutch is fully engaged, engine speed and Input Shaft speed are compared. If the engine speed is significantly different from the Input Shaft speed for a period of 1 second, the Fault Code is set. Fallback:This fault causes a down-shift fallback. Once the vehicle is stopped, starting gear and reverse gear can be engaged. The fault will clear at power down and up shifts will be allowed until the fault is detected again. Possible...

Overview:Fault Code 27 indicates the clutch has not disengaged as expected. Detection:1) Starting at key on and throughout operation, the Shift Controllerconstantly measures engine RPM and idle torque from the engine.2) When engaging a start gear, if the engine speed falls significantlybelow idle or engine torque rises significantly above idle torque the fault is set.3) If in gear and the vehicle is brought to a stop and engine speed falls significantly below idle, the fault is set. Fallback:There is no fallback associated with this failure; however, it may be difficult to achieve gear engagement or disengagement Possible Causes:1) Worn or...