Medium and Heavy Trucks
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Hi my name is***** will be glad to help. What is the complete engine model and serial number from the ID tag? Also what fault codes do you have logged in the ECM?
What model chassis Freight liner is this? Try Key on, cruise off, hold set resume switch until the check engine light flashes. Count the flashes for the 3 digit code with short pauses in between each digit an a longer pause between codes. Let me know what you get for codes. some trucks have a diagnostic switch instead. Let me know your chassis info and I will help you on pulling codes if the above procedure doesnt work
Try this.Key off... press diagnostic switch and hold down........ turn keyswitch on (not crank) position. then release the diagnostic switch. If the check engine light flashes, count the flashes for the codes.
If the light is on it means codes are logged. If you can not get them through the display You will need to have a scan tool plugged in to get the codes. Do you know anyone that can scan this for you?
For engine fault codes you can use Cummins Insite or a generic scanner for Med/Heavy truck engines.
Hi, Did you get this resolved?
To Read engine codes on the Freightliner Chassis:(The code must be active. i.e. Still showing as a Check Engine or other fault)
1. Shut the engine off.2. Hold the Engine Check switch down. Located down by the steering column.3. Turn the ignition key to on.Both the Check Engine (yellow) and the Stop Engine (red) will come onmomentary. If no fault is active, both lights will come on and stay on.4. The Fault Code will flash in the following sequence.First, the Check Engine (Yellow) lamp will flash. Then the Stop Engine light willflash the error number's in sequence. There will be a short one or two secondpause between each number. When the number has finished flashing, (in red), ayellow light will appear again. The three digit code will repeat twice in the samesequence.
The lights flash each fault code out two times before advancing to the next code.To skip to the next fault code sooner, or back to the previous code, touch theswitch labeled Idle Increase/Decrease . This is a center off rocker switch locatednext to the Engine Check switch. If only one fault is active, the same fault willflash again.