Allison WTEC II Fault Code: 51 PID: SPN: 43 FMI: Offgoing ratio test (during shift), 4 to 3
Main code 51 indicates a failed offgoing ratio test. 4?3 downshift
An offgoing ratio test occurs during a shift and uses turbine and output speed sensor readings to calculate the ratio between them. The calculated speed sensor ratio is then compared to the programmed speed sensor ratio of the commanded range. After a shift is commanded, the ECU, after a period of time, expects the old ratio to be gone. If the ratio does not change properly, the ECU assumes the offgoing clutch did not release. The shift is retried if conditions still exist to schedule the shift. If the second shift is not successfully completed, Code 51 XX is set and the ECU returns the transmission to the previous range. Additional codes could be logged for other shifts where ?X? indicates the range from and ?Y? indicates the range to.
-
Volvo PROSIS Offline 2019 Parts Catalog Installation Service
Trucks software $45.00Rated 0 out of 5 -
JOHN DEERE SERVICE ADVISOR 5.3.225 DATABASE AG + CF ENGLISH 2023
John Deere $250.00Rated 0 out of 5
-
download MANCATS II v14.01 2014 Diagnostic software MAN CATS ( virtual machine )
MAN $75.00Rated 0 out of 5 -
CAT Engine Reprogramming Tool for flash programming C1.8, C2.4, C3.8 & C3.3B + Guide
CAT $50.00Rated 0 out of 5 -
10 IN 1 FOR CAT SIS Caterpillar 2021 Full Service Dealer INCLUDING CAT 2019 C
CAT $110.00Rated 0 out of 5 -
International Truck ISIS – Oncommand Service Information Q4.2020 [04.2020]
Navistar $85.00Rated 0 out of 5 -
Scania SDP3 2.48.6 Diagnosis & Programming for VCI 3 VCI3 without Dongle
Scania $30.00Rated 0 out of 5 -
Bobcat Service Library [03.2019] Service, Operator, Maintenance, Bulletines, etc full update
Bobcat $110.00Rated 0 out of 5 -
DAF Davie Runtime v5.6.1 Davie XDc ll [02.2019] + Expire Fix 302.00 Unlock ( Windows 7 )
DAF $70.00Rated 0 out of 5
Related products
-
Allison 1000 & 2000 Gen 4 Fault Codes: U1041 J1850 (Class 2) ABS Controller State of Health Failure
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: P0848 Transmission Pressure Switch Solenoid D Circuit High
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: U2104 CAN Bus Reset Counter Overrun
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: U0100 CAN Bus ECM Error
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: P0872 Transmission Pressure Switch Solenoid E Circuit Stuck Closed
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: U1300 J1850 (Class 2) Serial Data Communication Link Low
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 P0719 Brake Switch ABS Input Low
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: U2105 CAN Bus ECM Error
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: P0870 Transmission Pressure Switch Solenoid E Circuit
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: U1000 Class 2 Loss of Serial Data Communication
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: P0871 Transmission Pressure Switch Solenoid E Circuit Stuck Open
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: P1892 Throttle Position Sensor Pulse Width Modulation (PWM) Signal High Input
1000 & 2000 Gen 4 $50.00Rated 0 out of 5 -
Allison 1000 & 2000 Gen 4 Fault Codes: P0873 Transmission Pressure Switch Solenoid E Circuit High
1000 & 2000 Gen 4 $50.00Rated 0 out of 5
-
SERVICE MANUAL 3000 AND 4000 SERIES GEN 4 GENERATION – ALLISON
Allison$19.00Original price was: $19.00.$17.00Current price is: $17.00.Rated 0 out of 5 -
SERVICE MANUAL DETROIT DIESEL DD15 , DD13 Service Workshop Repair Manual
DETROIT $25.00Rated 0 out of 5