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.
Description And Operation
DESCRIPTION
The Electronic Shift Module (ESM) (1) is part of the rotary shifter assembly.
The rotary shifter offers P ark, R everse, N eutral and D rive modes of operation.
OPERATION
The ESM communicates with Electronic Control Units (ECUs) on the Controller Area Network-Chassis (CAN-C) bus.
The ESM is connected to the vehicle wire harness with a single 12-way connector located at the shifter.
The ESM can set Diagnostic Trouble Codes (DTCs) when a fault is detected.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.