Allison WTEC II Fault Code: 52 PID: SPN: 79 FMI: Offgoing C3PS test, R to 2 (R to NNC to 2)

Main code 52 indicates a failed C3 pressure test. R?2 shift (R to NNC to 2)

When a shift is commanded and C3 is the offgoing clutch, the ECU expects the C3 pressure switch to open within a period of time after the shift is commanded. If the ECU does not see the switch open, it assumes C3 has not released. If conditions for a shift exist, the shift is retried. If the
C3 pressure switch still remains closed, the code is logged and the DO NOT SHIFT response is commanded. If the code is set during a direction change, neutral with no clutches is commanded, otherwise the transmission is commanded to the previous range. Additional codes could be logged for other shifts where ?X? indicates the range from and ?Y? indicates the range to.

Categories Allison, DTC TRUCKS, WTEC II Tags (R, 2, 2), 52, 79, Allison, C3PS, Code, Fault, FMI, II, NNC, Offgoing, PID, R, SPN, Test, to, WTEC

PACCAR ESA 5.6
PACCAR $85.00
Rated 0 out of 5
CLAAS WebTIC Offline [11.2021] Service Information – ENGLISH Language
CLAAS $100.00
Rated 0 out of 5
CAT Password Recovery Tool for CAT ecm configuration files WINDOWS 10
CAT $20.00
Rated 0 out of 5
Detroit Diesel Diagnostic Link DDDL 8.0 PRO PROFESSIONAL Software trucks
Detroit $25.00
Rated 0 out of 5
Navistar Diamond Logic Builder 2023 (DLB)
Navistar $94.00
Rated 0 out of 5

JOHN DEERE SERVICE ADVISOR 5.3.225 DATABASE AG + CF ENGLISH 2023
John Deere $250.00
Rated 0 out of 5
Navkal 2018 offline version remove DPF MAXXFORCE 13 EPA 10
Navistar $80.00
Rated 0 out of 5
Bell Cancomm 5.07.0 diagnostic software
BELL $125.00
Rated 0 out of 5
Volvo Premium Tech Tool PTT 2.8.130 Diagnostic Software 04.2022 ACPI ( 1 PC )
Trucks software $143.00
Rated 0 out of 5
DOWNLOAD Volvo VODIA 5.2.50 works with VOCOM + video
Trucks software $98.00
Rated 0 out of 5
Detroit Diesel Diagnostic Link DDDL 8.0 PRO PROFESSIONAL Software trucks
Detroit $25.00
Rated 0 out of 5
CLAAS CDS 7.5
CLAAS $200.00
Rated 0 out of 5
DOWNLOAD Paccar ESA Electronic Service Analyst 5.5.0 Diagnostic Software 2023
PACCAR $96.00
Rated 0 out of 5
10 IN 1 FOR CAT SIS Caterpillar 2021 Full Service Dealer INCLUDING CAT 2019 C
CAT $110.00
Rated 0 out of 5
Nexiq eTechnician 2.0.7447 2020
NEXIQ $55.00
Rated 0 out of 5
CAT ET 2021A (Caterpillar Electronic Technician) + Factory Password (1 PC )
CAT $65.00
Rated 0 out of 5
2021 VOLVO PREMIUM TECH TOOL PTT V2.8.21 VCADS+DEVELOPER TOOL+APCI 2021/09 ( 1 PC )
Trucks software $85.00
Rated 0 out of 5
CUMMINnSsg INSITEr 8.7.0.86 PRO + ZAP-IT
cummisznn $70.00
Rated 0 out of 5
VOLVO PREMIUM TECH TOOL PTT 2.7.30 Developer + Devtool + INSTALATION VIDEO!
Trucks software $60.00
Rated 0 out of 5
DOWNLOAD CNH EST 9.8 ENGINEERING
CNH $115.00
Rated 0 out of 5

SERVICE MANUAL Mack ASET-AC (CEGR) Engine
MACK $28.00
Rated 0 out of 5
SERVICE MANUAL Carrie Eagle Plus with Microprocessor NDB 40/46/49
CARRIE $22.00
Rated 0 out of 5
MANUAL SERVICE DEUTZ AGROTRON 215-265
DEUTZ $34.00
Rated 0 out of 5
SERVICE MANUAL 5000, 6000, 8000, 9000 SeriesOff-Highway Transmissions Commercial Electronic Controls 2 (CEC2) TS3353EN Troubleshooting Manual PDF.pdf
Allison $15.00
Rated 0 out of 5
SERVICE MANUAL BOBCAT 2400 sms
BOBCAT $48.00
Rated 0 out of 5
SERVICE MANUAL Carrie Supra 422, 522,622, 722, 822,922, 644,744,844, 944 & Supra Multi-Temp
CARRIE $20.00
Rated 0 out of 5
SERVICE MANUAL MACK V-MAC III
MACK $25.00
Rated 0 out of 5
SERVICE MANUAL BOBCAT 741-742-743-743ds sms
BOBCAT $45.00
Rated 0 out of 5
SERVICE MANUAL Mack Marine M-E7
MACK $27.00
Rated 0 out of 5
SERVICE MANUAL EPA04 Series 60 DDEC V Actuator Adjustment
DETROIT $18.00
Rated 0 out of 5