901 SPN Fault Code

Name:

Retarder Type

Description:

A vehicle retarder is a supplementary device to the wheel brakes for the driver to better control the vehicle. The wheel brakes used in the vehicle are not designed for continuous retarding operation. In a prolonged period of braking, the brakes can be thermally over-stressed, causing the braking effect to be reduced or even lead to complete braking system failure. The vehicle retarder is designed for continuous operation for braking during downhill operation and is also used for braking the vehicle to comply with speed limits and traffic conditions.This parameter provides some indication of the retarder dynamics. It is used in the retarder configuration message. The data type of this parameter is measured. 0000b = Electric/Magnetic 0001b = Hydraulic 0010b = Cooled Friction 0011b = Compression Release (Engine retarder) or Combined Compression Release with Exhaust 0100b = Exhaust 0101b to 1101b = Not defined 1110b = Other 1111b = Not available

901 spn fault code name is Retarder Type. If you don't take the time to look into 901 spn fault when it arises, it can add up quickly. One small issue like 901 can cause a larger component to become damaged without taking the time to investigate. If you suspect your truck is suffering from one of these issues, look into replacing those small components to save money down the road.

Note: The name and description of 901 code represents text descriptions for faults supported by another coding system and does not necessarily comply with SAE J1939. For a specific engine manufacturer's explanation for codes, please consult the engine's technical manual. See also other spn codes.

901 SPN Fault Code

Name:

Description:

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