Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2009 Jeep Patriot Limited, EDG, Automatic CVTFACTORY OEM SERVICE PROCEDURE
Transmission Control Module (Continuously Variable Transmission) Connector End View (C2)
MODULE-TRANSMISSION CONTROL C2 - LT. GRAY 24 WAY (CVT)
| CAV | CIRCUIT | FUNCTION |
| 1 | Z967 18BK | GROUND |
| 2 | T4 20DG/LB | TRS T4 SIGNAL |
| 3 | - | - |
| 4 | A952 20RD/OR | FUSED B(+) (I.O.D.) |
| 5 | T52 18DG/WT | OUTPUT SPEED SIGNAL |
| 6 | - | - |
| 7 | - | - |
| 8 | - | - |
| 9 | - | - |
| 10 | T5 20DG/LG | AUTOSTICK UPSHIFT SWITCH SIGNAL (AUTOSTICK) |
| 11 | - | - |
| 12 | T44 20YL/DG | AUTOSTICK DOWNSHIFT SWITCH SIGNAL (AUTOSTICK) |
| 13 | T50 18PK/LB | SECONDARY PRESSURE SIGNAL |
| 14 | T14 18DG/BK | INPUT SPEED SIGNAL |
| 15 | - | - |
| 16 | - | - |
| 17 | T21 18DG/YL | PRIMARY PRESSURE SENSOR SIGNAL |
| 18 | T13 18DG/TN | SENSOR GROUND |
| 19 | T3 20DG/DB | TRS T3 SIGNAL |
| 20 | T1 20DG/GY | TRS T1 SIGNAL |
| 21 | T130 18TN/DG | OUTPUT SPEED SENSOR GROUND |
| 22 | T72 18PK/LB | 5 VOLT SUPPLY (DRIVER CONVENIENCE GROUP) |
| 22 | T72 18PK | 5 VOLT SUPPLY (EXCEPT DRIVER CONVENIENCE GROUP) |
| 23 | T54 18RD/WT | TRANSMISSION TEMPERATURE SIGNAL |
| 24 | Z967 18BK | GROUND |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.