P1844

CAN Error - Engine Management System.

P1844 - CAN bus engine management system timeout: Plausibility fault

Possible causes:
1. CAN Bus.

1. CAN Bus.
FAULT:
- CAN Bus.

CHECK THE FOLLOWING:
- Integrity of all CAN Bus connections.
- Look for similar faults in other ECUs on the CAN Bus.
- Look for faults in the originating ECU (if applicable), including intermittent supplies/ground faults.

Refer to the CAN Bus wiring diagram.