AutoCodesGeneric – B1526

B1526 Code - Keyless Entry Circuit Short To Ground

Quick Answer

The Body Control Module (BCM) monitors the Keyless Entry. Common causes include Faulty Keyless Entry, Keyless Entry harness is open or shorted, Keyless Entry 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
B1526 indicates Keyless Entry Circuit Short To Ground.
Common causes
Common causes include Faulty Keyless Entry, Keyless Entry harness is open or shorted, Keyless Entry 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 8,882
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 29, 2019
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Code B1526 Description

The Body Control Module (BCM) monitors the Keyless Entry. The BCM sets the OBDII code when the Keyless Entry is not to factory specifications.
OBDII Code B1526 - Keyless Entry Circuit Short To Ground - AutoCodes.com
B1526 Code - Keyless Entry Circuit Short To Ground

What are the Possible Causes of the DTC B1526?

  • Faulty Keyless Entry
  • Keyless Entry harness is open or shorted
  • Keyless Entry circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1526?

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 B1526 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 B1526 Code

1. What does OBDII code B1526 mean?

Code B1526 indicates a short to ground in the keyless entry circuit, meaning there is an electrical fault preventing the proper function of the keyless entry system.

2. What are the common symptoms of code B1526?

Symptoms include the keyless entry system not working, doors not locking or unlocking remotely, and possibly a blown fuse or illuminated warning light.

3. What causes the B1526 code to appear?

This code is caused by damaged wiring, corroded or loose connections, a defective keyless entry module, or a short to ground in the circuit.

4. How can I diagnose the B1526 code?

Start by inspecting the keyless entry system's wiring and connections for damage or corrosion. Then check for blown fuses and use a multimeter to test for shorts to ground in the circuit.

5. Can I still use my vehicle if it shows code B1526?

Yes, the vehicle is drivable, but the keyless entry system may not function until the issue is resolved.

6. How do I fix code B1526?

Repairs may involve fixing or replacing damaged wiring, cleaning or tightening connections, replacing a blown fuse, or replacing the keyless entry module if it’s faulty.

7. Will a blown fuse trigger code B1526?

Yes, a blown fuse in the keyless entry circuit can trigger this code because it disrupts the electrical flow, potentially causing a short to ground.

8. Can a bad key fob cause code B1526?

No, a bad key fob is unlikely to cause this code. The issue lies within the vehicle’s keyless entry circuit, not the fob itself.

9. How much does it cost to repair code B1526?

The cost varies depending on the issue, ranging from $50 for simple wiring repairs to $300 or more if the keyless entry module needs replacement.

10. Can I clear code B1526 without fixing it?

You can clear the code with an OBDII scanner, but it will likely return if the underlying issue is not resolved.

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