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Engine-Codes – Generic – B1772

B1772 Code - Seat Driver Backward Circuit Short To Ground

Quick Answer

The B1772 code indicates that there is a short to ground in the seat driver backward circuit. Common causes include Damaged wiring in the seat adjustment circuit, Faulty seat adjustment switch, Malfunctioning seat adjustment motor. 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
B1772 indicates Seat Driver Backward Circuit Short To Ground.
Common causes
Common causes include Damaged wiring in the seat adjustment circuit, Faulty seat adjustment switch, Malfunctioning seat adjustment motor.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 25, 2024
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Code B1772 Description

The B1772 code indicates that there is a short to ground in the seat driver backward circuit. This means that there is an electrical issue in the circuit that controls the driver's seat moving backward. This can prevent the driver from adjusting their seat position, which can impact their comfort and ability to operate the vehicle safely. The short to ground can be caused by damaged wiring, a faulty switch, or a malfunctioning motor. If left unaddressed, this issue can worsen over time and potentially lead to complete failure of the seat adjustment system.

OBDII Code B1772 - Seat Driver Backward Circuit Short To Ground
B1772 Code - Seat Driver Backward Circuit Short To Ground

Common Causes of B1772

  1. Damaged wiring in the seat adjustment circuit
  2. Faulty seat adjustment switch
  3. Malfunctioning seat adjustment motor
  4. Corrosion in the electrical connections
  5. Defective seat control module

Symptoms of B1772

  1. Inability to move the driver's seat backward
  2. Seat movement is jerky or not smooth
  3. Unusual noises coming from the seat when trying to adjust it
  4. Seat movement is erratic or intermittent
  5. Seat adjustment controls not responding

How to Fix B1772

  1. Begin by inspecting the wiring harness for any visible damage or shorts to ground. Repair or replace any damaged wiring.
  2. Check the seat adjustment switch for proper functionality. Replace the switch if necessary.
  3. Test the seat adjustment motor to see if it is functioning correctly. Replace the motor if it is faulty.
  4. Inspect the electrical connections for corrosion and clean or replace as needed.
  5. If the issue persists, diagnose the seat control module for any faults and replace if necessary.

Cost to Fix B1772

The cost of repairing a seat driver backward circuit short to ground can vary depending on the specific cause of the issue and the extent of the damage. On average, the repair could range from $100 to $500, including parts and labor. However, as mentioned earlier, labor rates at auto repair shops can vary, so it's recommended to get a local estimate for a more accurate cost projection.

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Code B1772 Information for Specific Makes

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 B1772 Code

1. What are the common symptoms of OBDII code B1772 (Seat Driver Backward Circuit Short To Ground)?

- Common symptoms include the driver seat not moving backward, erratic movement of the seat, and potential issues with other electronic components in the vehicle.

2. What can cause the OBDII code B1772 to be triggered?

- This code is typically triggered by a short circuit between the driver seat backward circuit and ground, often caused by damaged wiring or a faulty seat adjustment motor.

3. How can I diagnose the cause of OBDII code B1772?

- A thorough visual inspection of the wiring harness under the driver seat, checking for any visible damage or signs of a short circuit, is a good starting point. Using a multimeter to test for continuity and resistance can also help pinpoint the issue.

4. Is it safe to drive with OBDII code B1772 present?

- It is generally not recommended to drive with this code present, as it may affect the functionality of the driver seat and potentially lead to further electrical issues in the vehicle.

5. What are some repair tips for fixing OBDII code B1772?

- Repairing the damaged wiring, replacing the seat adjustment motor if necessary, and clearing the code with an OBDII scanner are common repair steps for resolving this issue.

6. Can OBDII code B1772 be intermittent?

- Yes, this code can sometimes be intermittent, especially if the short circuit is caused by a loose connection or a wiring issue that only occurs under certain conditions.

7. Will disconnecting the battery reset OBDII code B1772?

- Disconnecting the battery may temporarily clear the code, but it is important to address the underlying issue causing the fault code to prevent it from reoccurring.

8. Can a DIY enthusiast fix OBDII code B1772 at home?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to fix this issue at home by following repair guides and using basic electrical troubleshooting techniques.

9. How much does it typically cost to repair OBDII code B1772 at a mechanic or dealership?

- The cost of repairing this code can vary depending on the extent of the damage, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Are there any preventive measures to avoid OBDII code B1772 in the future?

- Regularly inspecting the wiring harness under the driver seat for signs of wear or damage, avoiding overloading the seat adjustment system, and addressing any issues promptly can help prevent this code from recurring.

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