SECTION 4 – ENG INE OPERATION
Operation (cont.)
ENGINE IDLE SHUTDOWN TIMER
(CALIFORNIA-STANDARD) (cont.)
Thirty seconds before engine shutdown, the IDLE SHUTDOWN
indicator illuminates. This continues until the engine shuts down
or the low idle shutdown timer is reset. The engine must be out of
gear for the IST to work. Engine shutdown timer will deactivate
for one or more of the following conditions:
• Engine speed is not at idle speed (700 rpm).
• Vehicle movement or a Vehicle Speed Sensor (VSS) fault is
detected.
• Manual DPF Regeneration is enabled (Parked Regen).
• Accelerator pedal movement or an Accelerator Pedal
Sensor (APS) fault is detected.
• Engine coolant operating temperature is below 16 °C (60
°F).
• Brake pedal movement or a brake switch fault is det ected.
• Parking brake transition is detected.
• Clutchpedalispressedorclutchpedalswitchfaultis
detected (manual transmissions, if equipped with a clutch
switch).
• Shift selector is moved from neutral (automatic
transmissions).
• If the IST is enabled, the Cold Ambient Protection (CAP) will
not function.
COLD WEATHER OPERATION
WARNING: To prevent personal injury or death, do not
use ether, propane, gasoline or gasohol as starting aids.
NOTE:
If operating in temperatures below -12 °C (10 °F), contact
an authorized service provider for information about special cold
weather equipment and precautions.
At temperatures below -12 °C (10 °F) a block coolant heater and
oil pan heater is required for cold starting.
1. Before operating the engine at 0 °C (32 °F) or lower, check
or se rvice the following:
• Correct battery size
• Correct amount of electrolyte, if not a maintenance free
battery.
• Full battery charge
• Condition of other electrical equipment
• Cooling system leaks
Form No. 1172040R1
Page 54
Printed in the United States of America
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