AutoCodes – Generic – B2562

B2562 Code - Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground

Quick Answer

Under normal operation, ground for the blower motor is provided through the circuit from the blower motor resistor (LO and MED-LO) and the blower motor speed relay 1 (MED-HI and HI). Common causes include Faulty Auxiliary Blower Motor Speed Relay 1, Auxiliary Blower Motor Speed Relay 1 harness is open or shorted, Auxiliary Blower Motor Speed Relay 1 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: B2562 indicates Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground.
Common causes: Common causes include Faulty Auxiliary Blower Motor Speed Relay 1, Auxiliary Blower Motor Speed Relay 1 harness is open or shorted, Auxiliary Blower Motor Speed Relay 1 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 15,430

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 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2562 Description

Under normal operation, ground for the blower motor is provided through the circuit from the blower motor resistor (LO and MED-LO) and the blower motor speed relay 1 (MED-HI and HI). The blower resistor is grounded through the circuit. The blower motor speed relay coils are supplied through the circuit. Blower motor speed is received by the SJB from the rear auxiliary control through the circuit. Reference voltage for the blower speed selector resistor is provided by the SJB through the circuit. The auxiliary blower motor relay coil receives ground from the Smart Junction Box (SJB) through the circuit if any blower switch position but OFF is selected.
In LO, ground for the blower motor is provided through the blower motor resistor.
In MED-LO, blower motor speed relay 2 is grounded by the SJB through the circuit. Blower motor ground circuit is connected through one half of the blower motor resistor to the circuit. The circuit is connected through the blower motor speed relay 2 to the blower motor resistor ground circuit.
In MED-HI, blower motor speed relay 1 is grounded by the SJB through the circuit. Blower motor ground circuit is connected through blower motor speed relay 2 to the circuit. The circuit is connected through one half of the blower motor resistor to the blower motor resistor ground circuit.
In HI, blower motor speed relays 1 and 2 are grounded by the SJB through the circuit. Blower motor ground circuit 515 (OG/RD) is connected through the blower motor speed relay 1 to the circuit. The circuit is connected through the blower motor speed relay 2 to the blower motor resistor ground circuit.

OBDII Code B2562 - Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground - AutoCodes.com — B2562 Code - Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground

What does this mean?

What are the Possible Causes of the DTC B2562?

Faulty Auxiliary Blower Motor Speed Relay 1
Auxiliary Blower Motor Speed Relay 1 harness is open or shorted
Auxiliary Blower Motor Speed Relay 1 circuit poor electrical connection
Faulty Blower Motor Resistor
Faulty Smart Junction Box (SJB)

How to Fix the DTC B2562?

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 B2562 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.

Need more information about the B2562 code?

Need more information on how to fix the B2562 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2562 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2562 Chrysler — Power Sliding Switch Circuit Low
B2562 Dodge — Power Sliding Switch Circuit Low
B2562 Ford — Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground
B2562 Infiniti — Low Voltage To Body Control Module
B2562 Lincoln — Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground
B2562 Mercury — Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground
B2562 Nissan — Low Voltage To Body Control Module

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 B2562 Code

1. What are common symptoms of OBDII code B2562?

Common symptoms include the auxiliary blower motor not functioning properly, reduced air conditioning or heating performance, and potential issues with the vehicle's climate control system.

2. What can cause the OBDII code B2562 to trigger?

This code may trigger due to an open or short circuit to ground in the auxiliary blower motor speed relay 1 circuit, a faulty relay, damaged wiring, or a malfunctioning blower motor.

3. How can I diagnose the cause of the Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground code?

To diagnose this issue, you can visually inspect the wiring and connectors related to the auxiliary blower motor relay, test the relay for functionality, and check for any visible signs of damage or corrosion.

4. What are some repair tips for addressing OBDII code B2562?

Repair tips include checking and repairing any damaged wiring or connectors, replacing the auxiliary blower motor speed relay if necessary, and ensuring proper electrical connections in the circuit.

5. Can I continue driving my vehicle with the B2562 code present?

It is not recommended to continue driving with this code present, as it can lead to further damage to the blower motor or the vehicle's climate control system. It is best to address the issue promptly.

6. Is it possible to reset the OBDII code B2562 without repairing the issue?

While you can clear the code with an OBDII scanner, it is important to address the underlying problem causing the code to prevent future issues with the auxiliary blower motor system.

7. How much does it typically cost to repair OBDII code B2562?

The cost of repairs can vary depending on the extent of the damage and the specific components that need to be replaced. It is recommended to consult a professional mechanic for an accurate estimate.

8. Can a DIY enthusiast fix the Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground issue?

Depending on your level of automotive repair experience, you may be able to address this issue yourself by following diagnostic procedures and replacing faulty components. However, if in doubt, it is best to seek professional help.

9. Are there any preventative measures to avoid OBDII code B2562 in the future?

Regular inspection of the auxiliary blower motor system, checking for loose or damaged wiring, and addressing any issues promptly can help prevent the recurrence of this OBDII code.

10. How urgent is it to repair the Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short To Ground issue?

It is recommended to address this issue as soon as possible to prevent further damage to the blower motor and ensure proper functioning of the vehicle's climate control system.