Engine-Codes - Cadillac - B2170 Cadillac

B2170 Cadillac Code - Passenger Seat Cushion Heater Sensor

- Code Popularity: 849 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B2170 Cadillac?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Passenger Seat Cushion Heater Replacement
  • Passenger Seat Cushion Heater Replacement harness is open or shorted
  • Passenger Seat Cushion Heater Replacement circuit poor electrical connection
  • Faulty Seat Heating Control Module

Code Tech Notes

B2170 02: Passenger Seat Cushion Heater Sensor Circuit Short to Ground
B2170 05: Passenger Seat Cushion Heater Sensor Circuit High Voltage/Open

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How to Fix the DTC B2170 Cadillac?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B2170 Cadillac code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the B2170 Cadillac Code Mean?

The heated seat temperature sensor that set this Diagnostic Trouble Code (DTC) is located in the seat cushion just under the seat cover with the seat heating element. The Seat Heating Control Module supplies a 5 V reference voltage through the temperature sensor signal circuit and a ground through the low reference circuit to the sensor. The module monitors the voltage of the sensor signal circuit to determine the temperature of the seat. The temperature sensor varies in resistance based on the temperature of the heating element causing the signal voltage to change. Once the seat reaches the set temperature, the module will then cycle the control circuit of the heating elements ON and OFF in order to maintain the desired seat temperature based on the feedback voltage from the sensor.

B2170 Cadillac Code - Passenger Seat Cushion Heater Sensor

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