AutoCodes – Cadillac – B3112 Cadillac

B3112 Cadillac Code - Keyless Entry Transmitter 4 Battery

Quick Answer

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the Remote Control Door Lock Receiver (RCDLR), along with the commanded keyless entry function. Common causes include Low Keyless Entry Transmitter Battery, Faulty Keyless Entry Transmitter. 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: B3112 Cadillac indicates Keyless Entry Transmitter 4 Battery.
Common causes: Common causes include Low Keyless Entry Transmitter Battery, Faulty Keyless Entry Transmitter.
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 953

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 Jun 11, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3112 Cadillac Description

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the Remote Control Door Lock Receiver (RCDLR), along with the commanded keyless entry function. The Remote Control Door Lock Receiver sends this to the Body Control Module (BCM) to perform the requested function. The Diagnostic Trouble Code (DTC) sets when three consecutive low-battery signals are received from the same transmitter.

OBDII Code B3112 Cadillac - Keyless Entry Transmitter 4 Battery - AutoCodes.com — B3112 Cadillac Code - Keyless Entry Transmitter 4 Battery

What does this mean?

What are the Possible Causes of the DTC B3112 Cadillac?

Low Keyless Entry Transmitter Battery
Faulty Keyless Entry Transmitter

How to Fix the DTC B3112 Cadillac?

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 B3112 Cadillac 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 B3112 Cadillac code?

Need more information on how to fix the B3112 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3112 Cadillac code diagnosed by a professional: Find a repair shop in your area

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 B3112 Cadillac Code

1. What are the common symptoms of OBDII code B3112 in a Cadillac related to the Keyless Entry Transmitter 4 Battery?

The common symptoms include malfunctioning keyless entry system, inability to lock or unlock doors remotely, and a warning message on the instrument cluster.

2. What are the possible causes of OBDII code B3112 in a Cadillac?

The code B3112 can be triggered by a weak or dead battery in the fourth keyless entry transmitter, a faulty key fob, or issues with the keyless entry receiver.

3. How can I diagnose the cause of OBDII code B3112 related to the Keyless Entry Transmitter 4 Battery in my Cadillac?

You can start by checking the battery level in the fourth key fob transmitter, inspecting the key fob for any physical damage, and performing a reset of the keyless entry system.

4. What are the repair options for OBDII code B3112 in a Cadillac due to the Keyless Entry Transmitter 4 Battery issue?

You can replace the battery in the fourth key fob transmitter, reprogram the key fob, or replace the keyless entry receiver if necessary to resolve the issue.

5. Can I fix OBDII code B3112 related to the Keyless Entry Transmitter 4 Battery in my Cadillac at home?

Yes, you can attempt to fix the issue at home by replacing the battery in the key fob transmitter or reprogramming the key fob using the owner's manual or online resources.

6. Will OBDII code B3112 in a Cadillac affect the overall performance of the vehicle?

The B3112 code related to the Keyless Entry Transmitter 4 Battery is unlikely to affect the overall performance of the vehicle, but it may impact the convenience and functionality of the keyless entry system.

7. How urgent is it to address OBDII code B3112 in a Cadillac?

While OBDII code B3112 is not a critical issue for the immediate operation of the vehicle, addressing it promptly is recommended to restore the proper functioning of the keyless entry system.

8. Can a low vehicle battery trigger OBDII code B3112 in a Cadillac?

A low vehicle battery is not typically a direct cause of OBDII code B3112 related to the Keyless Entry Transmitter 4 Battery, but it can indirectly affect the performance of the keyless entry system.

9. Is it possible for OBDII code B3112 in a Cadillac to reset on its own?

In some cases, OBDII code B3112 may reset on its own if the underlying issue with the keyless entry transmitter battery is resolved, but manual intervention may be necessary for a complete fix.

10. What should I do if I continue to experience issues with the keyless entry system in my Cadillac after addressing OBDII code B3112?

If problems persist with the keyless entry system even after addressing the B3112 code, it is advisable to seek assistance from a qualified automotive technician to diagnose and repair any underlying issues.