Cummins ISB6.7 CM2150 (2007-09) Fault Code: 288 PID: 372 SPN: 974 FMI: 2 AE J1939 Multiplexing Remote Accelerator Pedal or Lever Position Sensor System – Received Network Data In Error. The OEM vehicle electronic control unit (VECU) detected a fault with the remote accelerator.

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 can occur when the OEM VECU detects an error on the remote throttle and or remote throttle enable switch. The ECM has been set up properly (components enabled and OEM VECU source addressed correctly) to receive multiplexed information for the remote throttle enable switch states and remote accelerator position over the J1939 datalink from an OEM VECU, and the OEM VECU is transmitting the message for that component. Most OEM VECUs will not have the circuitry to detect a remote throttle switch error.

The two types of errors that can occur for this fault are:

1)The OEM VECU determines that the remote throttle signal line is shorted high or shorted low. This fault status is transmitted to the Cummins® engine ECM on the J1939 datalink, which causes this fault to occur in the Cummins® engine ECM.
2)When the remote throttle enable switch has a shorted high or shorted low error detected by the OEM VECU, this fault status is transmitted to the ECM on the J1939 datalink, which causes this fault to occur in the ECM. Most OEM VECUs will not incorporate fault detection on a switch.

Note: It is still possible to get a Fault Code 285 or 286 if there is an incorrect setup in the OEM VECU or Cummins® engine ECM for other components, or if the remote throttle and remote throttle switch, or the datalink is damaged. The OEM configurations must multiplex the remote throttle and remote throttle switch inputs together to allow the use of the J1939 multiplexing feature for these components. INSITE™ electronic service tool can be used to monitor multiplexed components.

Possible repairs:

1)Replace the OEM harness.