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 TM 9-2320-391-10
VEHICLE OPERATION IN COLD ENVIRONMENT
0048 00
32 F TO -25 F (0 C to -32 C) - Continued
CTIS COLD WEATHER OPERATION
NOTE
When temperatures are below -15 F (-26 C), CTIS air leaks may occur
when the vehicle is started. This is indicated by four or five flashing mode
lights on the CTIS ECU. When CTIS seals warm up and air leakage stops, the
CTIS ECU should automatically reset and the CTIS ECU selected mode
illuminate steady. When four or five mode lights are flashing perform steps 1
and 2.
1.
Position CTIS on/off switch (1) to off by pressing the bottom half of the switch.
2.
Drive vehicle for approximately 15-30 minutes or until CTIS ECU (44) resets.
NOTE
If Central Tire Inflation System (CTIS) Electronic Control Unit (ECU) does not reset,
perform the following three steps. If CTIS ECU does not reset after performing the
following three steps, notify Field Maintenance.
3.
Position master power switch (23) to off.
4.
Position master power switch (23) to on.
5.
Depress cross-country mode (XC) (45) on CTIS ECU (44).
0048 00-22
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