PACCAR PX-8 CM2150 (2007-09) Fault Code: 239 PID: SID 232 SPN: 3511 FMI: 3 Sensor Supply 3 Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at sensor supply number 3 circuit.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

High voltage on the (+) 5 volt supply wire can be caused by a short to battery voltage in the engine harness or connectors, or a damaged ECM.

Possible repairs:

1)Replace the ECM.
2)Repair or replace the engine harness.

PACCAR PX-8 CM2150 (2007-09) Fault Code: 238 PID: SID 232 SPN: 3511 FMI: 4 Sensor Supply 3 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected on the +5 volt sensor supply circuit to the engine speed sensor.

PACCAR PX-8 CM2150 (2007-09) Fault Code: 234 PID: 190 SPN: 190 FMI: 0 Engine Crankshaft Speed/Position – Data Valid but Above Normal Operational Range – Most Severe Level. Engine speed signal indicates engine speed above engine protection limit.

PACCAR PX-8 CM2150 (2007-09) Fault Code: 222 PID: 108 SPN: 108 FMI: 4 Barometric Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at barometric pressure circuit.

PACCAR PX-8 CM2150 (2007-09) Fault Code: 221 PID: 108 SPN: 108 FMI: 3 Barometric Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at barometric pressure circuit.

PACCAR PX-8 CM2150 (2007-09) Fault Code: 197 PID: 111 SPN: 111 FMI: 1 Coolant Level – Data Valid but Below Normal Operating Range – Moderately Severe Level. Low engine coolant level detected.

PACCAR PX-8 CM2150 (2007-09) Fault Code: 196 (3 wire sensor) PID: 111 SPN: 111 FMI: 4 Coolant Level Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at engine coolant level circuit.

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