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.
Wiring Diagram CALLOUTS (Transmission Control Module, Comfort System Central Control Module, Engine Control Module)
J217
Transmission control module Type:BT, Slpdok:, Aim:BTJ217
J393
Comfort system central control module Type:BT, Slpdok:, Aim:BTJ393
J623
Engine control module Type:BT, Slpdok:, Aim:BTJ623
ST1
Fuse panel 1
SB1
Fuse 1 (on fuse panel B) Type:BT, Slpdok:, Aim:BTSB-
SB12
Fuse 12 (on fuse panel B) Type:BT, Slpdok:, Aim:BTSB-
T17q
17-pin connector, red Type:BT, Slpdok:, Aim:BTT17q
T32d
32-pin connector Type:BT, Slpdok:, Aim:BTT32d
85 - Ground connection 1 (in engine compartment wiring harness)
131 - Ground connection 2 (in engine compartment wiring harness)
132 - Ground connection 3 (in engine compartment wiring harness)
D112 - Connection (10) (in engine compartment wiring harness)
D114 -Connection (12) (in engine compartment wiring harness)
* Only For Vehicles With Diesel Engines
*2 Refer To Applicable Engine Wiring Diagram
*3 Refer To Applicable Wiring Diagram For Fuse Positions
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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.