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, ED3, AWD, StandardFACTORY OEM SERVICE PROCEDURE
Sentry Key Remote Entry Module (Wireless Control Module) Connector End View
MODULE-SENTRY KEY REMOTE ENTRY/WCM - BLACK 8 WAY
| CAV | CIRCUIT | FUNCTION |
| 1 | G20 20VT/BR | IGNITION SWITCH SENSE |
| 2 | D508 20WT/GY | COM-LIN TIRE PRESSURE MONITOR LAN (TIRE PRESSURE MONITOR) |
| 3 | F20 20PK/WT | IGNITION SWITCH OUTPUT (RUN-START) |
| 4 | Z937 20BK/YL | GROUND |
| 5 | A411 20RD/LG | FUSED B(+) (I.O.D.) |
| 6 | D55 20WT/OR | CAN B BUS (+) |
| 7 | D54 20WT/PK | CAN B BUS (-) |
| 8 | - | - |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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