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.
Power Steering System Description and Operation: Notes
| Callout | Component Name |
|---|---|
| K43 | K43 Power Steering Control Module |
| K17 | K17 Electronic Brake Control Module |
| P16 | P16 Instrument Cluster |
| B137 | B137 Power Steering Shaft Torque Sensor |
| M38 | M38 Power Steering Motor |
The power steering system reduces the amount of effort needed to steer the vehicle. The system uses the powertrain control module, body control module, power steering control module, discrete battery voltage supply circuit, steering shaft torque sensor, steering wheel position sensor, power steering motor and the serial data circuit to perform the system functions. The power steering control module and the power steering motor are serviced with the steering column assembly. The steering shaft torque sensor and the steering wheel position sensor are not serviced separately from each other or from the steering column assembly.
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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.