Isuzu N Series 2008 Owner's Manual page 191

NOTE
• Use the idling control knob to stabilize the engine speed at start when it runs
rough.
• Turn the idling control knob fully counterclockwise when the DPD is manually
regenerated in order to reduce the engine speed if the knob has been turned
clockwise to increase the engine speed.
NOTE
• The warm-up system does not operate even if the warm-up switch is pressed
when it is sufficiently warm, the engine is warm enough or the vehicle is already
being driven.
• If your vehicle is equipped with an idling control knob, increasing the engine
speed to 1,000 r/min or above using the knob deactivates the warm-up system,
in this case the system then does not work even if the warm-up switch is
pressed and the warm-up system indicator light comes on.
• If your vehicle is equipped with an anti-lock brake system (ABS), the warm-up
system indicator light may go out and the system may disengage even if the
warm-up switch is in the "ON" position.
2008N_sec04-1_print2.indd 63
CONTROLS AND INSTRUMENTS
Starting the Engine
Diesel Particulate Defuser (DPD)
Warm-Up Switch
This switch is used to allow engine coolant
to warm up faster at low temperatures to
increase the efficiency of the heater and/or
the defroster, or to increase the efficiency
of the heater while the vehicle is parked.
Start the engine and press the warm-up
switch. The warm-up system indicator light
on the instrument panel comes on and the
engine warms up faster.
After the engine has warmed up, press the
switch again to turn the warm-up system to
the "OFF" position. The indicator light goes
out.
→ Refer to page
→ Refer to page 4-154
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3/09/2008 5:28:54 PM