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 Liberty Limited, 4WD, Part TimeFACTORY OEM SERVICE PROCEDURE
Inline Connector End View (C201 )
C201 - 43 WAY FEMALE
| CAV | CIRCUIT | FUNCTION |
| 1 | X712 18DG/LB | MICROPHONE 1 IN (+) (EXCEPT EXPORT) |
| 1 | X712 22DG/LB | MICROPHONE 1 IN (+) (EXPORT) |
| 2 | X722 18LB/DG | MICROPHONE 2 IN (+) (EXCEPT EXPORT) |
| 2 | X722 22LB/DG | MICROPHONE 2 IN (+) (EXPORT) |
| 3 | A116 14YL/RD | FUSED B(+) (I.O.D.) |
| 4 | A115 12RD | FUSED B(+) |
| 5 | C7 10DB | BLOWER MOTOR SUPPLY |
| 6 | T315 12YL/BR | SHIFT MOTOR CONTROL A |
| 7 | L91 18WT/DB | HAZARD SWITCH SENSE |
| 8 | X792 18LB/DG | MICROPHONE IN (-) (EXCEPT EXPORT) |
| 8 | X792 22LB/DG | MICROPHONE IN (-) (EXPORT) |
| 9 | X795 18DG | COMMON AUDIO OUTPUT (EXCEPT EXPORT) |
| 9 | X795 22DG | COMMON AUDIO OUTPUT (EXPORT) |
| 10 | X835 18OR/GY | SENSOR GROUND (EXCEPT EXPORT) |
| 10 | X835 22OR/GY | SENSOR GROUND (EXPORT) |
| 11 | X793 18DG/YL | MICROPHONE FEED (EXCEPT EXPORT) |
| 11 | X793 22DG/YL | MICROPHONE FEED (EXPORT) |
| 12 | M27 20YL/LB | READING/RAIL LAMPS DRIVER |
| 13 | M24 20YL/WT | COURTESY LAMPS DRIVER |
| 14 | A901 18RD | FUSED B(+) |
| 15 | A417 18RD | FUSED B(+) |
| 16 | F921 18PK/YL | FUSED RUN RELAY OUTPUT |
| 17 | C830 22DB/YL | IR SENSOR RETURN |
| 18 | D508 20WT/GY | COM-LIN TIRE PRESSURE MONITOR LAN |
| 19 | A909 18RD | FUSED B(+) |
| 20 | A106 20LB/RD | FUSED B(+) |
| 21 | V71 22VT/OR | S/C SIGNAL 1 |
| 22 | V72 22OR/VT | S/C SIGNAL 2 |
| 23 | V937 22VT/BR | S/C RETURN |
| 24 | R79 20LB/VT | LEFT FRONT IMPACT SENSOR SIGNAL |
| 25 | R81 20LB/WT | LEFT FRONT IMPACT SENSOR GROUND |
| 26 | G38 18GY | GARAGE DOOR OPENER ENABLE |
| 27 | F1 20PK/WT | IGNITION SWITCH OUTPUT (UNLOCK-RUN-START) (EATX) |
| 28 | B15 18DG/WT | BRAKE SIGNAL 1 |
| 29 | B16 18LB/DG | BRAKE SIGNAL 2 |
| 30 | B25 20DG/WT | PARK BRAKE SWITCH SENSE |
| 31 | F921 20PK/YL | FUSED RUN RELAY OUTPUT |
| 32 | A108 18LG/RD | FUSED B(+) |
| 33 | P806 20LG/WT | INVERTER STATUS INDICATOR DRIVER (EXCEPT EXPORT) |
| 33 | D21 20WT/BR | SCI TRANSMIT (EXPORT) |
| 34 | B6 18DG/WT | RIGHT FRONT WHEEL SPEED SENSOR SIGNAL |
| 35 | B7 18DG/VT | RIGHT FRONT WHEEL SPEED SENSOR SUPPLY |
| 36 | D64 20WT/LB | CAN C BUS (-) |
| 37 | D65 20WT/BK | CAN C BUS (+) |
| 38 | D71 20WT/DB | DIAGNOSTIC CAN C (-) |
| 39 | D72 20WT/LB | DIAGNOSTIC CAN C (+) |
| 40 | D264 20WT | CAN INTERIOR BUS (-) |
| 41 | D265 20WT/OR | CAN INTERIOR BUS (+) |
| 42 | D506 20WT/DG | LIN BUS |
| 43 | T316 12YL/GY | SHIFT MOTOR CONTROL B |
C201 - 43 WAY MALE
| CAV | CIRCUIT | FUNCTION |
| 1 | X704 18DG/YL | RIGHT AUDIO OUTPUT (HANDS FREE) |
| 1 | X712 22DG/LB | MICROPHONE 1 IN (+) (HANDS FREE) |
| 2 | X703 18OR/GY | LEFT AUDIO OUTPUT (HANDS FREE) |
| 2 | X722 22LB/DG | MICROPHONE 2 IN (+) (HANDS FREE) |
| 3 | A116 14YL/RD | FUSED B(+) (I.O.D.) (LHD) |
| 4 | A115 14RD | FUSED B(+) |
| 5 | C7 10DB | BLOWER MOTOR SUPPLY |
| 6 | T315 12YL/BR | SHIFT MOTOR CONTROL A |
| 7 | L91 18WT/DB | HAZARD SWITCH SENSE |
| 8 | X792 22LB | MICROPHONE IN (-) (HANDS FREE) |
| 9 | X795 18DG | COMMON AUDIO OUTPUT (HANDS FREE) |
| 10 | X835 22OR/GY | SENSOR GROUND (HANDS FREE) |
| 11 | X793 22DG/YL | MICROPHONE FEED (HANDS FREE) |
| 12 | M27 18YL/LB | READING/RAIL LAMPS DRIVER |
| 13 | M24 18YL/WT | COURTESY LAMPS DRIVER |
| 14 | A901 18RD | FUSED B(+) |
| 15 | A417 18RD | FUSED B(+) (EXCEPT EXPORT) |
| 15 | A417 20RD | FUSED B(+) (EXPORT) |
| 16 | C83 22DB/LG | INFRARED SENSOR SIGNAL |
| 17 | C830 22DB/YL | IR SENSOR RETURN |
| 18 | D508 20WT/GY | COM-LIN TIRE PRESSURE MONITOR LAN |
| 19 | A909 18RD | FUSED B(+) |
| 20 | A106 20LB/RD | FUSED B(+) |
| 21 | V71 20VT/OR | S/C SIGNAL 1 |
| 22 | V72 20OR/VT | S/C SIGNAL 2 |
| 23 | V937 20VT/BR | S/C RETURN |
| 24 | R79 20LB/VT | LEFT FRONT IMPACT SENSOR SIGNAL |
| 25 | R81 20LB/WT | LEFT FRONT IMPACT SENSOR GROUND |
| 26 | G38 18GY | GARAGE DOOR OPENER ENABLE |
| 27 | F1 20PK/WT | IGNITION SWITCH OUTPUT (UNLOCK-RUN-START) (EATX) |
| 28 | B15 20DG/WT | BRAKE SIGNAL 1 |
| 29 | B16 20LB/DG | BRAKE SIGNAL 2 |
| 30 | B25 18DG/WT | PARK BRAKE SWITCH SENSE |
| 31 | F921 20PK/YL | FUSED RUN RELAY OUTPUT |
| 32 | A108 18LG/RD | FUSED B(+) |
| 33 | P806 18LG/WT | INVERTER STATUS INDICATOR DRIVER (EXCEPT EXPORT) |
| 33 | D21 20WT/BR | SCI TRANSMIT (EXPORT EXCEPT GAS) |
| 34 | B6 18DG/WT | RIGHT FRONT WHEEL SPEED SENSOR SIGNAL |
| 35 | B7 18DG/VT | RIGHT FRONT WHEEL SPEED SENSOR SUPPLY |
| 36 | D64 20WT/LB | CAN C BUS (-) |
| 37 | D65 20WT/BK | CAN C BUS (+) |
| 38 | D71 20WT/DB | DIAGNOSTIC CAN C (-) |
| 39 | D72 20WT/LB | DIAGNOSTIC CAN C (+) |
| 40 | D264 20WT/OR | CAN INTERIOR BUS (-) |
| 41 | D265 20WT/GY | CAN INTERIOR BUS (+) |
| 42 | D506 20WT/DG | LIN BUS |
| 43 | T316 12YL/GY | SHIFT MOTOR CONTROL B |
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:
- • 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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