Eaton Gen 2 (AutoShift) Fault Code: 58 PID: 191 FMI: 2 Output Shaft Speed Sensor
Overview:
Fault Code 58 indicates an electrical problem in the Output Shaft Speed Sensor circuit. The signal from the sensor did not match the current operating conditions.
Detection:
A Speed Sensor is determined faulty when all Speed Sensor readings are compared and one sensor is inconsistent.
Fallback:
This fault causes a 5-speed fallback and the transmission stays in either low range or high range. When the vehicle comes to a stop, an attempt to shift into low range is made. The fallback causes a 1-speed fallback on transmissions with no auxiliary section.
Possible Causes:
1) Transmission Harness
2) Output Shaft Speed Sensor
3) Various transmission components
4) Transmission Controller
5) Failed or loose Tone Wheel
Shop Talk:
Select a forward gear and drive at a steady speed no slower than 10 MPH. It may be necessary to operate the vehicle for a prolonged period of time
if the cause of the failure is related to heat and vibration.
Related products
-
-
Allison 1000 & 2000 Gen 4 Fault Codes: P0218 Transmission Fluid Over Temperature Condition
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: P2773 Torque Control Request Ignored – ECM/TCM
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: P0122 Pedal Position Sensor Circuit Low Voltage
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: P0123 Pedal Position Sensor Circuit High Voltage
1000 & 2000 Gen 4 $50.00 -
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: P0873 Transmission Pressure Switch Solenoid E Circuit High
1000 & 2000 Gen 4 $50.00 -
-
Allison 1000 & 2000 Gen 4 Fault Codes: P2771 Four-Wheel Drive Switch Circuit
1000 & 2000 Gen 4 $50.00
