Operation - Dodge Dakota Sport 2001 Service Manual

AN
MODE SENSOR (Continued)

OPERATION

During normal vehicle operation, the Transfer Case
Control Module (TCCM) monitors the mode sensor
outputs at least every 250 (+/-50) milliseconds when
the shift motor is stationary and 400 microseconds
when the shift motor is active. A mode sensor signal
between 3.8 Volts and 0.8 Volts is considered to be
undefined.
Refer to for the relative angles of the transfer case
shift sector versus the interpreted transfer case gear
operating mode. Refer to for the sensor codes
returned to the TCCM for each transfer case mode
sensor position. The various between gears positions
can also be referred as the transfer case's coarse
position. These coarse positions come into play dur-
ing shift attempts.
Transfer Case
Angle (degrees)
Between Gears
+40 (4LO)
Between Gears
Between Gears
+20 (NEUTRAL)
Between Gears
Between Gears
0 (2WD/AWD)
Between Gears
Between Gears
-20 (4HI)
Between Gears
Between Gears
MODE SENSOR CODES
Sensor Channel A
H
H
H
H
H
H
H
H
H
L
L
L
L
SECTOR ANGLES VS. TRANSFER CASE POSITION
Shaft Angle (Degrees)
Sensor Channel B Sensor Channel C
H
H
H
L
L
L
L
L
L
L
L
L
H
TRANSFER CASE - NV244
Transfer Case Position
+40
+20
0
-20
Sensor Channel D
L
L
L
L
L
L
H
H
H
H
H
H
H
21 - 597
4LO
N
2WD/AWD
4HI
H
L
H
H
L
H
H
L
H
H
L
H
H