Idle Speed

Idle Speed Inspection

Note:
^ Idle speed is not adjustable.
^ Idle speed verification requires M-MDS.

1. Verify that the idle speed (M-MDS: RPM PID) is within the specification using M-MDS.

Idle speed [MTX (Neutral position)]
No load: 600 - 700 rpm
Electrical loads*2 ON (38-48 A): 650 - 750 rpm
Electrical loads*2 ON (more than 48 A): 700 - 800 rpm
A/C ON and refrigerant pressure switch (middle) OFF: 700 - 800 rpm
A/C ON and refrigerant pressure switch (middle) ON: 700 - 800 rpm

Idle speed [ATX (P or N position)]
No load: 650 - 750 rpm
Electrical loads*2 ON (38-48 A): 650 - 750 rpm
Electrical loads*2 ON (more than 48 A): 700 - 800 rpm
A/C ON and refrigerant pressure switch (middle) OFF: 650 - 750 rpm
A/C ON and refrigerant pressure switch (middle) ON: 670 - 770 rpm

*1. Excludes temporary idle speed drop just after the electrical loads are turned on.
*2. generator generating current value.
^ If there malfunction, refer to "ENGINE SYMPTOM TROUBLESHOOTING".)