PACCAR PX-6 CM2150 (2007-09) Fault Code: 351 PID: SID 251 SPN: 627 FMI: 12 Injector Power Supply – Bad Intelligent Device or Component. The ECM measured injector boost voltage is low.

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 code will become active when the engine is running, the primary engine speed sensor signal is present, the battery charge is above a minimum threshold, and, at the same time, the measured injector power supply voltage is lower than the commanded injector power supply voltage.

This fault code will become inactive whenever the keyswitch is turned on.

This fault code will become inactive whenever the engine is running and measured injector power supply voltage reaches the commanded injector power supply voltage.

Possible repairs:

1)Clean the battery terminal connections.
2)Replace the ECM.