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PACCAR PX-8 CM2150 (2007-09) Fault Code: 784 PID: SID 145 SPN: 1590 FMI: 2 Adaptive Cruise Control Mode – Data Erratic, Intermittent, or Incorrect. Loss of communication with adaptive cruise control.
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 fault is set active if the ECM does not receive the Heartbeat message from the adaptive cruise control unit on the SAE J1939 data link.
If Adaptive Cruise Recovery is enabled, the driver can toggle the cruise enable switch from the OFF position to the ON position two times to get regular cruise control to operate and Fault Code 784 will go inactive. At the next key cycle, if the Heartbeat message is still not present, Fault Code 784 will go active.
There are no repairs.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 779 PID: SID 051 SPN: 703 FMI: 11 Auxiliary Equipment Sensor Input 3 – Root Cause Not Known
PACCAR PX-8 CM2150 (2007-09) Fault Code: 778 PID: SID 064 SPN: 723 FMI: 2 Engine Camshaft Speed/Position – Data Erratic, Intermittent, or Incorrect. The ECM has detected an error in the camshaft position sensor signal.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 731 PID: SID 064 SPN: 723 FMI: 7 Engine Speed/Position Camshaft and Crankshaft Misalignment – Mechanical System Not Responding Properly or Out of Adjustment. Engine position signal from the engine speed sensor and camshaft position sensor do not match.
PACCAR PX-8 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.
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 voltage detected at the turbocharger compressor inlet air temperature sensor circuit.
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.