AutoCodes – Generic – B2601

B2601 Code - DRL Relay Control Circuit Shorted To Ground

Quick Answer

The Daytime Running Lamps (DRL) Relay is controlled by the Body Control Module (BCM). Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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: B2601 indicates DRL Relay Control Circuit Shorted To Ground.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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 11,322

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 Jan 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2601 Description

The Daytime Running Lamps (DRL) Relay is controlled by the Body Control Module (BCM). Ignition positive voltage is applied to the DRL relay coil. The BCM grounds the DRL relay control circuit in order to turn on the DRL relay. When the DRL relay control circuit becomes shorted to ground, DTC B2601 is set.

OBDII Code B2601 - DRL Relay Control Circuit Shorted To Ground - AutoCodes.com — B2601 Code - DRL Relay Control Circuit Shorted To Ground

What does this mean?

What are the Possible Causes of the DTC B2601?

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

How to Fix the DTC B2601?

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 B2601 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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Need more information on how to fix the B2601 code? Get Access to Factory Service Manuals

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Information for Specific Makes

B2601 Acura — Parking Sensor CPU Error
B2601 Buick — DRL Relay Control Circuit Shorted To Ground
B2601 Cadillac — DRL Relay Control Circuit Shorted To Ground
B2601 Chevrolet — DRL Relay Control Circuit Shorted To Ground
B2601 GMC — DRL Relay Control Circuit Shorted To Ground
B2601 Honda — Parking Sensor CPU Error
B2601 Infiniti — Shift Position
B2601 Nissan — Shift Position
B2601 Pontiac — DRL Relay Control Circuit Shorted To Ground

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 B2601 Code

What does the OBDII code B2601 indicate?

1. Code B2601 indicates that the Daytime Running Light (DRL) Relay Control Circuit has a short to ground. This disrupts the proper operation of the DRL system. 2.

What are common symptoms of the B2601 code?

Common symptoms include DRLs not functioning, flickering lights, or the DRLs being stuck on when the vehicle is off. 3.

What causes the B2601 code to appear?

The main causes are damaged wiring, a faulty DRL relay, a short to ground in the circuit, or a malfunctioning body control module (BCM). 4.

Can I drive with the B2601 code active?

While the vehicle is usually drivable, driving without functioning DRLs can reduce visibility and safety, especially in low-light conditions. 5.

How do I diagnose the B2601 code?

Start by inspecting the wiring and connectors for damage or corrosion. Then test the DRL relay and check for a short to ground in the circuit using a multimeter. 6.

How can the B2601 code be fixed?

Repairs may include replacing damaged wiring, cleaning or replacing corroded connectors, installing a new DRL relay, or reprogramming/repairing the BCM if necessary. 7.

How much does it cost to fix the B2601 code?

Repairs can range from $50 to $300, depending on whether the issue involves simple wiring repairs or replacement of components like the DRL relay or BCM. 8.

Can a bad DRL relay cause the B2601 code?

Yes, a faulty DRL relay is a common cause of this code, as it can create a short to ground in the control circuit. 9.

Will resetting the code solve the issue?

Resetting the code may temporarily clear it, but the underlying issue must be repaired to prevent the code from returning. 10.

Is the B2601 code specific to certain vehicles?

This code is not specific to one make or model but is more common in vehicles equipped with DRL systems that use a relay for control. Check your vehicle's service manual for specific details.