Check Engine Warning

rv dm 04.01.005

The check engine warning indicator illuminates when certain faults are detected. If a critical engine condition exists (for example, low oil pressure or high coolant temperature), the check engine indicator will illuminate to alert the driver to correct the condition as soon as possible. If the condition gets worse, the stop engine indicator will illuminate.

For Cummins engine service literature, refer to Cummins Online at https://www.cummins.com/support/manuals or scan the QR code. See Fig.. For Detroit™ engine service literature, refer to the Detroit Diesel link on the DTNA TechLit website https://www.dtnatechlit.com/portal-public or scan the QR code. See Fig..

Fig. 1, Cummins QR Code

Fig. 2, TechLit QR Code

Note:  If the check engine indicator illuminates during vehicle operation, take the vehicle directly to an authorized Freightliner service facility.

Note:
Parent topic: Warning and Indicator Lamps
Document Number: 0000113001
Manual Publication Date: 2025-05-22
Topic Publication Date: 2025-06-24