What does the code 3712 on the ECM mean?
This fault code is for information only, and indicates that an engine power derate and vehicle speed limit have been implemented in order to make sure that the critical SCR related fault codes that are presently active in the ECM are addressed as quickly as possible. Refer to Troubleshooting Fault Code 3712.
What is the cause of the fault code 3712?
CODES REASON EFFECT Fault Code: 3712 PID(P), SID(S): P105 SPN: 5246 FMI: 0 Lamp: Red SRT: Aftertreatment SCR Operator Inducement – Data Valid But Above Normal Operational Range – Most Severe Level. Critical SCR related fault codes have been active for an extended period of time and require immediate attention. Immediate engine power derate.
What are the codes that will not clear on a Cummins truck?
I went to a shop last week to look at this truck, two codes were in the PCM and would not clear. The shop diagnosed the truck with a bad particulate sensor. The sensor was replaced and the code did not come back. The 3712 and 3714 codes however would not clear, and the engine was in derate mode.
When to return engine aftertreatment system Peterbilt?
When you do, please be sure to return it when you are finished using it. That way it will be there when you need it the next time or when you pass the vehicle on to the next user. NOTE After you’ve read this manual, it should be stored in the cab for convenient ref- erence and remain with this truck when sold.
When does the fault code 3714 go inactive?
3714 – Engine Protection Torque Derate- Condition Exists Conditions for Clearing the Fault Code This fault code will go inactive once all other active fault codes have been addressed. Refer to the appropriate fault code troubleshooting tree. The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes.
How does the ECM know if there is a fault code?
Immediate engine power derate. The ECM continuously monitors the engine’s fault code status to determine if any fault codes critical to successful engine operation are active Conditions for Running the Diagnostics This diagnostic runs continuously when the engine is operating.
What does the code 1885 mean in ECM?
This fault code is for information only, and indicates that an engine power derate has been implemented in order to make sure that the critical fault codes that are presently active in the ECM are addressed as quickly as possible. 1885 Aftertreatment Intake NOx Sensor Circuit – Voltage Below Normal or Shorted to Low Source