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PACCAR PX-8 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
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.
An extension harness between the main engine harness and the turbocharger compressor inlet temperature sensor can be used, depending on the turbocharger arrangement.
On ISB with CM2150 engines, an extension harness between the main harness and the ambient air temperature/pressure sensor is always used.
Possible causes:
1)Signal circuit shorted to ground in the harness
2)Signal circuit shorted to return or ground in the sensor
3)Damaged sensor.
Possible repairs:
1)Replace the turbocharger compressor inlet air temperature sensor.
2)Replace the ECM.
3)Repair or replace the engine harness.
4) The removal and installation of the connector may correct the problem.
PACCAR PX-8 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-8 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-8 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.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 687 PID: 103 SPN: 103 FMI: 1 Turbocharger 1 Speed – Data Valid But Below Normal Operating Range – Moderately Severe Level. Low turbocharger speed detected by the ECM.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 686 PID: 103 SPN: 103 FMI: 2 Turbocharger 1 Speed – Data Erratic, Intermittent, or Incorrect. An invalid turbocharger speed signal has been detected by the ECM.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 649 PID: SID 115 SPN: 1378 FMI: 11 Engine Oil Change Interval – Condition Exists. Change engine oil and filter.