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.
Pinpoint Test S : DTC B1113 And B111B: Notes
Refer to Climate Controlled Seats for schematic and connector information.
Normal Operation and Fault Conditions
The SCME monitors the backrest and cushion blower motor circuits. If a short to ground or voltage on any of these circuits is detected, the Diagnostic Trouble Codes (DTCs) set.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1113 | Passenger Thermal Electric Device Control Overtemperature Fault | If the SCME blower motor driver integrated circuit temperature exceeds 175 ° C (347 ° F), the SCME shuts down the driver seat system and sets this DTC. |
| B111B | Passenger Thermo-Electric Driver Overcurrent Low | If SCME outputs to the driver seat backrest or cushion blower motor are shorted to ground or a blower motor resistance of less than 0.9 ohm is sensed, the SCME shuts down the driver seat system and sets this DTC. |
Possible Causes
- Wiring, terminals or connectors
- Backrest blower motor
- Cushion blower motor
- SCME
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.