PACCAR PX-6 CM2150 (2007-09) Fault Code: 698 PID: 21 SPN: 1136 FMI: 4 ECM Internal Temperature Sensor Circuit - Voltage Below Normal or Shorted to Low Source. Low signal voltage or an open circuit detected at the internal ECM temperature sensor.

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.

This sensor is located internally to the ECM. No troubleshooting is possible for this fault code. If the fault code is active, the ECM must be replaced.

Possible repairs:

1)Replace the ECM.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 692 PID: 692 SPN: 1172 FMI: 4 Turbocharger 1 Compressor Inlet Temperature Sensor Circuit - Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the turbocharger compressor inlet air temperature sensor circuit.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 691 PID: 351 SPN: 1172 FMI: 3 Turbocharger 1 Compressor Inlet Temperature Sensor Circuit - Voltage Above Normal or Shorted to High Source. High signal voltage detected at the turbocharger compressor inlet air temperature circuit.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 689 PID: 190 SPN: 190 FMI: 2 Engine Crankshaft Speed/Position - Data Erratic, Intermittent, or Incorrect. The ECM has detected an error in crankshaft position sensor signal.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 688 PID: 98 SPN: 98 FMI: 0 Engine Oil Level - Data Valid but Above Normal Operational Range - Most Severe Level. High oil level has been detected by the oil level sensor.

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