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.
Circuit/System Testing
This system is serviced as a kit (module and sensing mat). Perform Passenger Presence System Programming and Setup procedure whenever a component is replaced. Inspect the following component connectors for damage or corrosion. Repair or replace the affected component/connector:
- Passenger presence module harness connector
- Seat wiring harness to vehicle harness connector
The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with an audible and/or tactile click.
- Confirm that all passenger presence module and sensor connectors are fully seated.
- Verify DTC B0074 is not set.
- If DTC B0074 is set
Replace the K85 passenger presence module.
- If DTC B0074 does not set
- If DTC B0074 is set
- All OK.
NO RELATED
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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.