Eaton Gen 1 (AutoShift) Fault Code: 41 PID: SID 56 FMI: 7 Range Failed To Engage
Overview:
This code indicates the transmission is unable to complete a shift across the range. The range is either stuck in HI or LO, or cannot complete engagement in HI or LO.
Detection:
The transmission attempts the same range shift five consecutive times and determines the shift cannot be completed based on the speeds across the back box.
Fallback:
This fault causes a 5-speed fallback and the transmission stays in either LO range or HI range. When the vehicle comes to a stop, an attempt to shift into LO range is made.
Required Tools:
1) Basic Hand Tools
2) (2) 0-100 PSI Air Pressure Gauges
3) AutoSelect/AutoShift Troubleshooting Guide
Possible Causes:
1) Low air pressure
2) Contaminated air supply
3) Air leak
4) Range solenoid stuck
5) Failed range synchronizer
6) Failed range actuator/cylinder/piston/yoke
Related products
-
-
-
-
Allison 1000 & 2000 Gen 4 Fault Codes: U0031 J1850 (Class 2) Serial Data Communication Link Low
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: U1000 Class 2 Loss of Serial Data Communication
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: U1041 J1850 (Class 2) ABS Controller State of Health Failure
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: P0876 Transmission Reverse Pressure Switch Circuit Stuck Open
1000 & 2000 Gen 4 $50.00 -
-
-
Allison 1000 & 2000 Gen 4 Fault Codes: P0848 Transmission Pressure Switch Solenoid D Circuit High
1000 & 2000 Gen 4 $50.00 -
-
Allison 1000 & 2000 Gen 4 Fault Codes: U1301 J1850 (Class 2) Serial Data Communication Link Low
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: U1300 J1850 (Class 2) Serial Data Communication Link Low
1000 & 2000 Gen 4 $50.00 -
Bendix ABS EC-30 Fault Code: SID 251 FMI 3
Bendix ABS -
Allison 1000 & 2000 Gen 4 Fault Codes: P0123 Pedal Position Sensor Circuit High Voltage
1000 & 2000 Gen 4 $50.00
