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.
Electronic Shift Module (ESM)
DESCRIPTION
| 1 - ESM |
The Electronic Shift Module (ESM) 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.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.