2023 Jeep Grand Cherokee L Laredo, AWDFACTORY OEM SERVICE PROCEDURE

Module-Brake System Control (RHD) Connector End View (D2721A)

Harness-Family: DASH

Color: BLACK

Gender: FEMALE

Part Number: 2209521-1_9-2322105-9

Part Description: Not Available

Connector No: D2721A

Option: RHD

Repair Kit Part Number: Not Available

Cavity Count: null

Fig 1: Module-Brake System Control Connector End View (RHD)
GCWD1252069Courtesy of CHRYSLER
Pin Circuit Wire Color Gauge/Size Function Option
1 Z902 BK 6.0 GROUND N/A
4 B9 DG/GN 0.35 SPEED SIGNAL (+) N/A
5 B8 DG/BG 0.35 SPEED SIGNAL (-) N/A
6 B15 DG/WH 0.35 BRAKE SIGNAL 1 N/A
9 F942 PK/VT 0.35 FUSED IGNITION N/A
10 B7 DG/VT 0.35 SPEED SIGNAL (+) N/A
11 B6 DG/WH 0.35 SPEED SIGNAL (-) N/A
14 A66 RD/BN 6.0 FUSED B(+) N/A
15 B4 DG/GY 0.35 SPEED SIGNAL (+) N/A
16 B3 DG/YE 0.35 SPEED SIGNAL (-) N/A
17 D284 GY/BG 0.35 CAN FD (+) N/A
18 D284 GY/BG 0.35 CAN FD (+) N/A
19 B22 DG/GN 0.35 SPEED SIGNAL 1 N/A
25 D391 BG 0.35 PRIVATE CAN FD (-) N/A
26 D391 BG 0.35 PRIVATE CAN FD (-) N/A
28 B2 DG/BU 0.35 SPEED SIGNAL (+) N/A
29 B1 DG/OG 0.35 SPEED SIGNAL (-) N/A
30 Z902 BK 6.0 GROUND N/A
33 D285 BG 0.35 CAN FD (-) N/A
34 D285 BG 0.35 CAN FD (-) N/A
41 D392 DB/BG 0.35 PRIVATE CAN FD (+) N/A
42 D392 DB/BG 0.35 PRIVATE CAN FD (+) N/A
46 A67 RD/DB 6.0 FUSED B(+) N/A
(1) Pins not listed are not used for this connector
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.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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 Quote

No obligation. See pricing before you book.