2008 Jeep Commander Overland, RWDFACTORY OEM SERVICE PROCEDURE

Junction Block Connector End View (C3)

JUNCTION BLOCK C3 - 40-WAY

GXK780170Courtesy of CHRYSLER CORP.
CAV  CIRCUIT  FUNCTION 
1 A929 14RD FUSED RUN/ACCESSORY DELAY RELAY OUTPUT
2 A33 16RD/YL FUSED B(+) (POWER SEATS)
3 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
4 - -
5 A114 20GY/RD FUSED B(+)
6 A114 20GY/RD FUSED B(+) (SATELLITE RADIO)
7 - -
8 - -
9 A929 16RD FUSED RUN/ACCESSORY DELAY RELAY OUTPUT
10 - -
11 - -
12 - -
13 - -
14 Z911 20BK GROUND
15 C51 14LB/BR REAR BLOWER MOTOR RELAY OUTPUT
16 A33 16RD/YL FUSED B(+) (PASSENGER POWER SEAT)
17 - -
18 A114 18GY/RD FUSED B(+)
19 - -
20 F921 20PK/YL FUSED RUN RELAY OUTPUT
21 C17 20LB/DG FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
22 - -
23 - -
24 - -
25 Q81 18OR/GY FLIP-UP GLASS RELAY OUTPUT
26 A931 20RD FUSED B(+)
27 A932 18RD FUSED B(+)
28 A46 18RD/GY REAR WIPER RELAY OUTPUT
29 - -
30 A934 18RD FUSED RUN/ACCESSORY DELAY RELAY OUTPUT
31 F850 20LB/PK FUSED RUN RELAY OUTPUT
32 C515 12LB/OR REAR WINDOW DEFOGGER RELAY OUTPUT
33 C17 20LB/DG FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
34 P792 16LG/TN PASSENGER DOORS UNLOCK RELAY OUTPUT
35 P701 16LG/DG DRIVER DOOR UNLOCK RELAY OUTPUT
36 P778 16LG/LB DOOR LOCK RELAY OUTPUT
37 A27 20RD/LB FUSED B(+)
38 F200 20PK/LB FUSED IGNITION SWITCH OUTPUT (RUN-START)
39 A116 14YL/RD FUSED B(+) (PREMIUM AUDIO)
40 A205 14RD/OR FUSED B(+) (EXCEPT BASE)
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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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