What does EEC mean on a Freightliner?
What does EEC mean on a Freightliner?
“EEC 61 is basically saying there is a problem in the After-treatment control module. This is the module the engine uses for the after-treatment system. Your Check Engine Light, and/or your Maintenance light will be on at the same time.
Where is the Def pressure sensor located?
A DEF quality sensor is mounted on the side of the DEF tank. This sensor detects the Urea concentration in the DEF to confirm it is acceptable for effective dosing (approximately 32.5% Urea).
What should the advance timing be on an EEC test?
Start a running EEC test and when test starts (RPM’s go up) check the timing. It should be advanced about 20 degrees (plus or minus 3 degrees) more than the original base timing. Since base timing is usually 10 degrees BTDC then the advance is usually to 30 degrees BTDC. The first thing to do for wiring faults is an inspection.
What do the pulses Mean on the EEC-IV?
The EEC-IV emits pulses to represent these numeric codes; for example, two pulses, a short pause, then four more pulses would signal a code 24. The EEC-IV has two different test modes, the first mode is called Key On Engine Off, or KOEO. The second mode is called Key On Engine Running, or KOER, and each mode has a specific purpose.
Is there Hard fault code for EEC IV?
If for example there was a loose wire to a solenoid that only lost contact while driving but was making contact while testing the system there would be NO HARD FAULT CODE. The code would show up IN MEMORY. The same would happen for a sensor that only went out of range occasionally.
Where are errors stored on the EEC-IV?
Additionally the EEC-IV runs a continuous self-test during normal operation, and errors detected will be stored in the EEC’s Keep Alive Memory, or KAM. These codes can then be extracted from the KAM for diagnosis later.
Start a running EEC test and when test starts (RPM’s go up) check the timing. It should be advanced about 20 degrees (plus or minus 3 degrees) more than the original base timing. Since base timing is usually 10 degrees BTDC then the advance is usually to 30 degrees BTDC. The first thing to do for wiring faults is an inspection.
The EEC-IV emits pulses to represent these numeric codes; for example, two pulses, a short pause, then four more pulses would signal a code 24. The EEC-IV has two different test modes, the first mode is called Key On Engine Off, or KOEO. The second mode is called Key On Engine Running, or KOER, and each mode has a specific purpose.
Additionally the EEC-IV runs a continuous self-test during normal operation, and errors detected will be stored in the EEC’s Keep Alive Memory, or KAM. These codes can then be extracted from the KAM for diagnosis later.
If for example there was a loose wire to a solenoid that only lost contact while driving but was making contact while testing the system there would be NO HARD FAULT CODE. The code would show up IN MEMORY. The same would happen for a sensor that only went out of range occasionally.
