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B1935 Buick Code - Left Seat Back Heater Circuit

- Code Popularity: 549 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1935 Buick?

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 Left Seat Back Heater Element
  • Left Seat Back Heater Element harness is open or shorted
  • Left Seat Back Heater Element circuit poor electrical connection
  • Faulty Memory Seat Module (MSM)
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How to Fix the DTC B1935 Buick?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

B1935 04: Left Seat Back Heater Circuit Open
B1935 0A: Left Seat Back Heater Circuit Rate of Change Below Threshold
B1935 0B: Left Seat Back Heater Circuit Current Above Threshold
B1935 0C: Left Seat Back Heater Circuit Current Below Threshold
B1935 0D: Left Seat Back Heater Circuit Resistance Above Threshold
B1935 0E: Left Seat Back Heater Circuit Resistance Below Threshold
B1935 1F: Left Seat Back Heater Circuit Intermittent

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1935 Buick code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B1935 Buick Description

When the heated seat function is active, the Memory Seat Module (MSM) supplies battery voltage through the element supply voltage circuit to the seat heater elements. The module controls the seat temperature by providing a PWM ground through the heated seat element control circuit to the seat heater elements. The module then monitors the current flow through the heating element and the temperature sensor rate of change to verify correct operation. The OBDII code sets when the module detects that the set point temperature is not to factory specifications.

OBDII Code B1935 Buick - Left Seat Back Heater Circuit - AutoCodes.com
B1935 Buick Code - Left Seat Back Heater Circuit

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