PACCAR MX (2004 Emissions) Fault Code: U17A7 Accelerator Pedal – Sensor 1 and 2 Synchronization Malfunction
PACCAR MX (2004 Emissions) Fault Code: U17A7 Accelerator Pedal – Sensor 1 and 2 Synchronization Malfunction
SET CONDITIONS:
The PCI ECU (D420) detects that the accelerator pedal position sensor 1 or 2 does not correspond to the calculated accelerator pedal position.
DIAGNOSTIC CONDITION:
This diagnostic runs continuously when the ignition is on, but not during engine start-up.
CORRESPONDING OBD READINESS MONITOR:
None
RESET CONDITION:
This DTC changes to inactive when the fault is no longer detected. To validate the repair, monitor the accelerator pedal sensors with the diagnostic service tool.
REPAIR VERIFICATION:
1. Clear all DTCs.
2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.
3. Did the DTC come back?
– No, repair successful
– Yes, repair unsuccessful
POSSIBLE CAUSES:
Faulty accelerator pedal or wiring
ADDITIONAL INFORMATION:
The accelerator pedal position is determined by two sensors (1 and 2) inside the accelerator pedal. The sensor outputs are PWM signals at a fixed frequency of 180 to 220 Hz. Sensor signals 1 and 2 are reversed compared to each other, meaning that by pressing the accelerator more, sensor 1 shows a decreasing PWM signal and sensor 2 shows an increasing PWM signal. The PCI ECU monitors both sensors separately and together.
Related
-
JOHN DEERE SERVICE ADVISOR 5.3.225 DATABASE AG + CF ENGLISH 2023
John Deere $250.00Rated 0 out of 5
-
PACCAR Electronic Service Analyst 5.4.3.0 SW files 27.03.2021 software trucks
PACCAR $60.00Rated 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 -
download MANCATS II v14.01 2014 Diagnostic software MAN CATS ( virtual machine )
MAN $75.00Rated 0 out of 5 -
Volvo Premium Tech Tool PTT 2.8.130 Diagnostic Software 04.2022 ACPI ( 1 PC )
Trucks software $143.00Rated 0 out of 5 -
Volvo PROSIS Offline 2019 Parts Catalog Installation Service
Trucks software $45.00Rated 0 out of 5
Related products
-
SERVICE MANUAL DETROIT DIESEL DDEC VI – Application And Installation Manual
DETROIT $20.00Rated 0 out of 5