2008 Jeep Commander 4WD V6-3.7LFACTORY OEM SERVICE PROCEDURE

Control Module: Locations




Component ID: 235
Component : MODULE-TRANSMISSION CONTROL

Connector:
Name : MODULE-TRANSMISSION CONTROL C1
Color : BLACK
# of pins : 18
Qualifier : (NAG1)
Factory service manual diagram




Pin Circuit Description
1 - -
2 - -
3 - -
4 - -
5 - -
6 - -
7 - -
8 - -
9 - -
10 - -
23 - -
24 - -
25 - -
26 - -
27 - -
28 - -
29 F946 20PK/LG TRANSMISSION RELAY OUTPUT
30 Z904 18BK GROUND

Component Location - 39
Factory service manual diagram






Connector:
Name : MODULE-TRANSMISSION CONTROL C2
Color : BLACK
# of pins : 12
Qualifier : (NAG1)
Factory service manual diagram




12 T70 20YL INPUT SPEED SENSOR 1 (N2) SIGNAL
13 T72 20YL/DB SENSOR SUPPLY VOLTAGE
14 T60 18DG/BK 1-2/4-5 SOLENOID CONTROL
15 T73 18YL/GY 3-4 SOLENOID CONTROL
16 T74 18YL/LG 2-3 SOLENOID CONTROL
17 T75 18YL/LB TCC SOLENOID CONTROL
33 T13 20DG/VT SENSOR GROUND
34 T54 20DG/WT TRANSMISSION TEMPERATURE SENSOR-P/N SWITCH SIGNAL
35 T71 20YL/OR INPUT SPEED SENSOR 2 (N3) SIGNAL
36 T76 20YL/TN MODULATION PRESSURE SOLENOID CONTROL
37 T77 20YL/BR SHIFT PRESSURE SOLENOID CONTROL
38 T78 18YL SOLENOID SUPPLY VOLTAGE
H1 D65 20WT/LG CAN C BUS (+)
L1 D64 20WT/LB CAN C BUS (-)

Component Location - 39
Factory service manual diagram






Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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