AutoCodes – Buick – B1835 Buick

B1835 Buick Code - Driver Seat Lumbar Rearward Switch Circuit

Quick Answer

The Seat Memory Control Module supplies a reference voltage to each signal circuit of the Driver Seat Adjuster Switch. Common causes include Faulty Driver Seat Adjuster Switch, Driver Seat Adjuster Switch harness is open or shorted, Driver Seat Adjuster Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B1835 Buick indicates Driver Seat Lumbar Rearward Switch Circuit.
Common causes: Common causes include Faulty Driver Seat Adjuster Switch, Driver Seat Adjuster Switch harness is open or shorted, Driver Seat Adjuster Switch circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 256

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 24, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1835 Buick Description

The Seat Memory Control Module supplies a reference voltage to each signal circuit of the Driver Seat Adjuster Switch. When the power seat or lumbar switches are pressed, the appropriate signal circuit from the Seat Memory Control Module is pulled low through the switch contacts indicating the power seat command. The Seat Memory Control Module then commands the driver seat or lumbar to move in response to the switch signals. The Diagnostic Trouble Code (DTC) will be set when there is a short to ground on a switch signal circuit.

OBDII Code B1835 Buick - Driver Seat Lumbar Rearward Switch Circuit - AutoCodes.com — B1835 Buick Code - Driver Seat Lumbar Rearward Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B1835 Buick?

Faulty Driver Seat Adjuster Switch
Driver Seat Adjuster Switch harness is open or shorted
Driver Seat Adjuster Switch circuit poor electrical connection
Faulty Seat Memory Control Module

How to Fix the DTC B1835 Buick?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1835 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1835 Buick Code

1. What are the common symptoms of OBDII code B1835 in a Buick related to the Driver Seat Lumbar Rearward Switch Circuit?

The common symptoms include non-functional or erratic operation of the driver seat lumbar rearward switch.

2. What are the possible causes of OBDII code B1835 in a Buick?

The code B1835 in a Buick is typically caused by a faulty driver seat lumbar rearward switch, damaged wiring, or a poor connection in the circuit.

3. How can I diagnose OBDII code B1835 in my Buick?

Diagnosing OBDII code B1835 involves checking the wiring and connections related to the driver seat lumbar rearward switch, using a multimeter to test for continuity, and inspecting the switch itself for any visible damage.

4. Can I repair OBDII code B1835 in my Buick myself?

If you have experience with automotive electrical systems, you may be able to repair OBDII code B1835 in your Buick by replacing the faulty driver seat lumbar rearward switch or repairing any damaged wiring or connections.

5. Is it safe to continue driving my Buick with OBDII code B1835 present?

While the vehicle may still be operable with OBDII code B1835 related to the driver seat lumbar rearward switch circuit, it is recommended to address the issue promptly to avoid any potential safety hazards or further damage.

6. Are there any temporary fixes for OBDII code B1835 in a Buick?

Temporary fixes for OBDII code B1835 may include resetting the trouble code using an OBDII scanner, but it is important to investigate and resolve the underlying issue for a permanent solution.

7. How much does it typically cost to repair OBDII code B1835 in a Buick?

The cost of repairing OBDII code B1835 in a Buick can vary depending on the specific cause of the issue, but it may involve the cost of a new driver seat lumbar rearward switch, wiring repairs, or labor charges if done by a professional.

8. Can extreme temperatures affect the occurrence of OBDII code B1835 in a Buick?

Extreme temperatures can potentially impact the electrical components related to the driver seat lumbar rearward switch circuit, leading to intermittent issues or failures that trigger OBDII code B1835.

9. Will disconnecting the battery reset OBDII code B1835 in a Buick?

Disconnecting the battery may reset the error codes temporarily, but if the underlying issue causing OBDII code B1835 is not addressed, the code is likely to reappear after driving the vehicle.

10. How can I prevent OBDII code B1835 from occurring in my Buick in the future?

To prevent OBDII code B1835 from occurring in the future, it is advisable to regularly inspect and maintain the driver seat lumbar rearward switch circuit, ensuring all wiring and connections are in good condition.