What does this button do?

[Jason Bourne]

Found on a Mitsubishi Fuso Rosa bus (2010) What does this button switch on/off?

[tiv]

Power heater, for cold starts, revs the engine to quickly warm up, common on uk spec

[Jason Bourne]

@tiv thank you! So if I start the vehicle with this on does it make the engine rev more than when the switch is turned off?

 

 

[Jason Bourne]

This is the idle speed control knob isn't it?

[tiv]

1 hour ago, Jason Bourne said:

@tiv thank you! So if I start the vehicle with this on does it make the engine rev more than when the switch is turned off?

 

 

Yes and this would function on only a colder climate, definitely not Colombo, probably nuwara eliya, that's how it worked in Toyota anyway 

[tiv]

1 hour ago, Jason Bourne said:

This is the idle speed control knob isn't it?

Yea this is the idle, but I've never seen an option to lock it in auto, rather slick

This must be a larger engine isn't it?

[Jason Bourne]

Yea this is the idle, but I've never seen an option to lock it in auto, rather slick
This must be a larger engine isn't it?

It's a 4D34