Cummins ISB4.5 CM2150 Fault Code: 191 PID: 50 SPN: 876 FMI: 11 Air Conditioner Clutch Supply Circuit.
Circuit Description
The air conditioner clutch solenoid is a device used by the electronic control module (ECM) to control the air conditioner by sending a signal to open or close the air conditioner clutch solenoid.
Component Location
Refer to an original equipment manufacturer's (OEM) diagram for the location of the air conditioner clutch solenoid.
Shop Talk
Air conditioner clutch solenoid could be malfunctioning due to a damaged engine harness or a bad ground on the air conditioner clutch connector.
Cummins ISB4.5 CM2150 Fault Code: 187 PID: SID 211 SPN: 3510 FMI: 4 Sensor Supply 2 Circuit - Voltage Below Normal or Shorted to Low Source.
Cummins ISB4.5 CM2150 Fault Code: 177 PID: SID 254 SPN: 3464 FMI: 7 Electronic Throttle Control Actuator - Mechanical System Not Responding or Out of Adjustment.
Cummins ISB4.5 CM2150 Fault Code: 176 PID: SID 254 SPN: 3464 FMI: 4 Electronic Throttle Control Actuator Driver Circuit - Voltage Below Normal or Shorted to Low Source.
Cummins ISB4.5 CM2150 Fault Code: 175 PID: SID 254 SPN: 3464 FMI: 3 Electronic Throttle Control Actuator Driver Circuit - Voltage Above Normal or Shorted to High Source.
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