518 SPN Fault Code

Name:

Engine Requested Torque/Torque Limit

Description:

Parameter provided to the engine or retarder in the torque/speed control message for controlling or limiting the output torque.Requested torque to the engine is measured in indicated torque as a percentage of reference engine torque (see the engine configuration message, PGN 65251). This is the engine torque at which the engine is expected to operate if the torque control mode is active or the engine torque which the engine is not expected to exceed if the torque limit mode is active. Zero torque can be requested which implies zero fuel and, according to Figures SPN512_A and SPN512_B, the engine will not be allowed to stall. The actual engine percent torque (SPN 513) should be zero and the engine should decelerate until the low idle governor kicks in, at which time the actual engine percent torque will be calculated as shown in Figures SPN512_A and SPN512_B and the engine torque mode bits (SPN 899) should be equal to 0000b � Low Idle Governor. Requested torque to the retarder is measur

518 spn fault code name is Engine Requested Torque/Torque Limit. If you don't take the time to look into 518 spn fault when it arises, it can add up quickly. One small issue like 518 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 518 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.

518 SPN Fault Code

Name:

Description:

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