What is this, where does it go?
Professional
Joined: Nov 2006
Posts: 108
Likes: 0
From: Florida
Yeah, they're capped. I pulled them out when I swapped the motor. Easier to connect everything out of the truck. I made a list of what-went-where and those were connected to the trans X-member. I have California emissions on this truck, I am wondering if those are not "left-overs" for federal emissions and a standard trans or X-fer case.
Professional
Joined: Nov 2006
Posts: 108
Likes: 0
From: Florida
I was thinking that perhaps those "extra" terminals on our trucks are for the 4.7l engine and its trans. I know my truck has dead-end terminals in the engine bay where the TCM should be. If a 4.7l has the round black connector just hanging there, then that will answer the question.
Thread Starter
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Legend
Joined: Feb 2005
Posts: 8,058
Likes: 183
From: Fort Worth, TX
My haynes shows nothing electrically. But on the 7C-TC section, it looks like the 2 wire is the mode sensor, and the 6 pin is the shift motor. 01's had the NV233 or NV244.
Looking for my FSM now to check that.
Looking for my FSM now to check that.
Thread Starter
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Legend
Joined: Feb 2005
Posts: 8,058
Likes: 183
From: Fort Worth, TX
Originally Posted by FSM
MODE SENSOR
DESCRIPTION
The transfer case mode sensor (Fig. 73) is an electronic
device whose output can be interpreted to indicate
the shift motor shaft’s rotary position. The
sensor consists of a magnetic ring and four Hall
Effect Transistors to create a 4 channel digital device
(non-contacting) whose output converts the motor
shaft position into a coded signal. The TCCM must
supply 5VDC (+/- 0.5v) to the sensor and monitor the
shift motor position. The four channels are denoted
A, B, C, and D. The sensor is mechanically linked to
the shaft of the cam which causes the transfer case
shifting. The mode sensor draws less than 53 mA.
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 during
shift attempts.
DESCRIPTION
The transfer case mode sensor (Fig. 73) is an electronic
device whose output can be interpreted to indicate
the shift motor shaft’s rotary position. The
sensor consists of a magnetic ring and four Hall
Effect Transistors to create a 4 channel digital device
(non-contacting) whose output converts the motor
shaft position into a coded signal. The TCCM must
supply 5VDC (+/- 0.5v) to the sensor and monitor the
shift motor position. The four channels are denoted
A, B, C, and D. The sensor is mechanically linked to
the shaft of the cam which causes the transfer case
shifting. The mode sensor draws less than 53 mA.
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 during
shift attempts.
I alwways wondered what the blank piece under the vent in my dash was for (range selector), now I know. But I'm guessing that the wires in question probably end at a connector on the steering column, where the TCCM would be?
Last edited by magnethead; Sep 11, 2010 at 02:52 AM.
Site Moderator-Dodge Tech
Joined: Sep 2010
Posts: 3,724
Likes: 22
From: Nashville, Tennessee
Here you go. Don't take out the dummy plugs you may end up with a DTC or warning light...lol. Make one harness for all of them it saves money 
Yes that ground goes on the PS bracket.
Yes that ground goes on the PS bracket.
Last edited by TNtech; Oct 1, 2010 at 08:32 PM.