AutoCodes – Chevrolet – B305E Chevrolet

B305E Chevrolet Code - Interruptible RAP Relay Circuit

Quick Answer

The Keyless Entry Control Module controls the retained accessory power relays through the control circuit by applying voltage to the interruptible retained accessory power relay coil control circuit. Common causes include Faulty Retained Accessory Power Relay, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power Relay 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: B305E Chevrolet indicates Interruptible RAP Relay Circuit.
Common causes: Common causes include Faulty Retained Accessory Power Relay, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power Relay 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 3,795

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 Mar 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B305E Chevrolet Description

The Keyless Entry Control Module controls the retained accessory power relays through the control circuit by applying voltage to the interruptible retained accessory power relay coil control circuit. The Retained Accessory Power Relays are energized when the ignition is in the ACCESSORY or the ON position. The relays are also energized for approximately 10 min after shutting the ignition OFF, providing no door is opened.

OBDII Code B305E Chevrolet - Interruptible RAP Relay Circuit - AutoCodes.com — B305E Chevrolet Code - Interruptible RAP Relay Circuit

What does this mean?

What are the Possible Causes of the DTC B305E Chevrolet?

Faulty Retained Accessory Power Relay
Retained Accessory Power Relay harness is open or shorted
Retained Accessory Power Relay circuit poor electrical connection
Faulty Keyless Entry Control Module

How to Fix the DTC B305E Chevrolet?

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 B305E Chevrolet 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 B305E Chevrolet Code

1. What is OBDII code B305E for a Chevrolet?

The OBDII code B305E for a Chevrolet refers to the Interruptible Retained Accessory Power (RAP) Relay Circuit.

2. What are the common symptoms of OBDII code B305E in a Chevrolet?

Common symptoms of OBDII code B305E in a Chevrolet may include issues with the power windows, radio, interior lights, or other accessories not working properly.

3. What are possible causes of OBDII code B305E in a Chevrolet?

Possible causes of OBDII code B305E in a Chevrolet include a faulty RAP relay, damaged wiring in the relay circuit, or a malfunctioning body control module.

4. How can I diagnose OBDII code B305E in my Chevrolet?

Diagnosing OBDII code B305E in your Chevrolet typically involves using a scan tool to read the trouble code, inspecting the RAP relay and related wiring, and testing the body control module for proper operation.

5. Can I still drive my Chevrolet with OBDII code B305E present?

It is generally safe to drive your Chevrolet with OBDII code B305E present, but it is recommended to address the issue promptly to avoid potential problems with accessory operation.

6. How can I repair OBDII code B305E in my Chevrolet?

Repairing OBDII code B305E in your Chevrolet may involve replacing the Interruptible RAP relay, repairing damaged wiring, or reprogramming the body control module if needed.

7. Is it possible to reset OBDII code B305E in a Chevrolet without fixing the underlying issue?

While you can clear the trouble code temporarily, it is not recommended to reset OBDII code B305E without addressing the root cause, as the issue may persist and trigger the code again.

8. Are there any DIY tips for troubleshooting OBDII code B305E in a Chevrolet?

DIY tips for troubleshooting OBDII code B305E in a Chevrolet include checking and cleaning electrical connections, inspecting fuses related to the RAP system, and ensuring proper grounding.

9. How much does it typically cost to fix OBDII code B305E in a Chevrolet?

The cost to fix OBDII code B305E in a Chevrolet can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor at a repair shop.

10. Can OBDII code B305E in a Chevrolet cause any other problems if left unresolved?

If left unresolved, OBDII code B305E in a Chevrolet may lead to continued issues with accessory operation, potential drain on the vehicle's battery, or further damage to the electrical system.