J1939 Datalink Multiplexing Printable Version Overview CODE REASON EFFECT Fault Code: 285PID: S231SPN: 639FMI: 9/9LAMP: YellowSRT: The ECM expected information from a multiplexed device but did not receive it soon…
Sensor Supply Voltage Printable Version Overview CODE REASON EFFECT Fault Code: 284PID: P221SPN: 1043FMI: 4/4LAMP: YellowSRT: Incorrect voltage detected on the electronic control module (ECM) voltage supply wire to the…
Fuel Shutoff Valve Printable Version Overview CODE REASON EFFECT Fault Code: 259PID: S017SPN: 632FMI: 7/7LAMP: YellowSRT: The ECM detected that the fuel shutoff valve is stuck open mechanically or leaking.…
Ambient Air Temperature Sensor Circuit Printable Version Overview CODE REASON EFFECT Fault Code: 256PID: P171SPN: 171FMI: 4/4LAMP: YellowSRT: Low voltage detected at the ambient air temperature circuit. No effect on…
Engine Fuel Shutoff Valve Drive Circuit – Voltage Above Normal or Shorted to High Source Printable Version Overview CODE REASON EFFECT Fault Code: 255PID: S017SPN: 632FMI: 3/3LAMP: YellowSRT: Engine Fuel…
Fuel Shutoff Valve Solenoid Supply Circuit Printable Version Overview CODE REASON EFFECT Fault Code: 254PID: S017SPN: 632FMI: 4/4LAMP: RedSRT: Less than (+) 6 VDC detected at fuel shutoff circuit or…
Ambient Air Temperature Sensor Circuit Printable Version Overview CODE REASON EFFECT Fault Code: 249PID: P171SPN: 171FMI: 3/3LAMP: YellowSRT: High voltage detected at the ambient air temperature circuit. No effect on…
Engine Fan Clutch Supply Circuit Printable Version Overview CODE REASON EFFECT Fault Code: 245PID: S033SPN: 647FMI: 4/4LAMP: YellowSRT: Less than 6 VDC detected at fan clutch when on. Indicates an…
Vehicle Speed Sensor Circuit Printable Version Overview CODE REASON EFFECT Fault Code: 242PID: P084SPN: 84FMI: 10/10LAMP: YellowSRT: Invalid or inappropriate vehicle speed signal detected. Signal indicates an intermittent connection or…
Vehicle Speed Sensor Circuit Printable Version Overview CODE REASON EFFECT Fault Code: 241PID: P084SPN: 84FMI: 2/2LAMP: YellowSRT: The ECM lost the vehicle speed signal. Engine speed limited to “Maximum Engine…