PACCAR MX (2004 Emissions) Fault Code: U1799 CAN Communication - Message (TSC1 yye) Data Error

SET CONDITIONS:
This DTC is set if a fault is detected in the Torque Speed Control message coming from the Adaptive Cruise Control.

DIAGNOSTIC CONDITION:
This diagnostic runs continuously when the ignition is on.

CORRESPONDING OBD READINESS MONITOR:
None

RESET CONDITION:
This DTC will change to inactive immediately after the diagnostic runs and passes.

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:
1. External interference of the CAN communication
2. Defective component
3. Software incorrect or incompatible

PACCAR MX (2004 Emissions) Fault Code: U1798 CAN Communication - Message (EBC1) Out of Range, Engine Retarder Selection from Brake System

PACCAR MX (2004 Emissions) Fault Code: U1794 CAN Communication - Message (PROPB_AST) not Available, Clutch Percent Torque from Transmission System

PACCAR MX (2004 Emissions) Fault Code: U1793 CAN Communication - Message (PROPB_AST) Out of Range, Clutch Switch from Transmission System

PACCAR MX (2004 Emissions) Fault Code: U1792 CAN Communication - Message (PROBA_BBM_to_Eng) Out of Range, Throttle Integration Switch from Body Builder Module

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