AutoCodes – Dodge – B1A20 Dodge

B1A20 Dodge Code - Vehicle Theft Security System Pre-Arm Timeout

Quick Answer

The Vehicle Theft Security System (VTSS) is designed to protect against whole vehicle theft and provide passive protection against unauthorized vehicle start up. Common causes include Faulty Vehicle Theft Security System, Faulty Controlled Area Network (CAN) Communication. 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: B1A20 Dodge indicates Vehicle Theft Security System Pre-Arm Timeout.
Common causes: Common causes include Faulty Vehicle Theft Security System, Faulty Controlled Area Network (CAN) Communication.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 612

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 Aug 07, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1A20 Dodge Description

The Vehicle Theft Security System (VTSS) is designed to protect against whole vehicle theft and provide passive protection against unauthorized vehicle start up. If an invalid key is used to start the vehicle, the engine will cut out after two (2) seconds of running. In subsequent years there were various modules controlling the VTSS system. Wireless Ignition Node (WIN) controls the VTSS system. The Remote Keyless Entry (RKE) transmitter has been replaced with the Fob Integrated Key (FOBIK). The primary components of the system are the Wireless Ignition Node (WIN), FOB Integrated Key (FOBIK), and the Powertrain Control Module (PCM). The system monitors vehicle doors, ignition and liftgate action for any unauthorized operation (includes hood switch for Export). The OBDII sets if the Vehicle Theft Security System (VTSS) pre-arm sequence is interrupted within sixteen seconds after securing the vehicle.

OBDII Code B1A20 Dodge - Vehicle Theft Security System Pre-Arm Timeout - AutoCodes.com — B1A20 Dodge Code - Vehicle Theft Security System Pre-Arm Timeout

What does this mean?

What are the Possible Causes of the DTC B1A20 Dodge?

Faulty Vehicle Theft Security System
Faulty Controlled Area Network (CAN) Communication

How to Fix the DTC B1A20 Dodge?

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 B1A20 Dodge 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 B1A20 Dodge code?

Need more information on how to fix the B1A20 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1A20 Dodge 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 B1A20 Dodge Code

1. What is OBDII code B1A20 in a Dodge related to the Vehicle Theft Security System Pre-Arm Timeout?

The B1A20 code in a Dodge indicates a fault in the vehicle's theft security system pre-arm timeout feature.

2. What are the common symptoms of OBDII code B1A20 in a Dodge?

Common symptoms of code B1A20 include the security system not arming properly, the vehicle not starting, and possibly an illuminated security light on the dashboard.

3. What can cause OBDII code B1A20 to trigger in a Dodge?

Code B1A20 may be triggered by issues such as a faulty security system module, wiring problems, a drained vehicle battery, or a malfunctioning key fob.

4. How can I diagnose the cause of OBDII code B1A20 in my Dodge?

Diagnosing code B1A20 may involve checking the status of the security system module, inspecting the wiring for any damage, testing the key fob's functionality, and ensuring the vehicle's battery is in good condition.

5. What are some possible repair tips for fixing OBDII code B1A20 in a Dodge?

Repair tips for resolving code B1A20 may include resetting the security system, replacing a faulty security module, repairing damaged wiring, reprogramming the key fob, or ensuring the vehicle battery is charged.

6. Can OBDII code B1A20 in a Dodge be fixed without professional help?

Simple fixes like ensuring the key fob is working and the battery is charged can be done without professional help. However, diagnosing and repairing complex issues may require the expertise of a qualified mechanic.

7. Is it safe to continue driving with OBDII code B1A20 present in a Dodge?

It is not recommended to drive with code B1A20 active, as it may lead to potential security system malfunctions and difficulties starting the vehicle.

8. How much does it typically cost to repair OBDII code B1A20 in a Dodge?

The cost of repairing code B1A20 can vary depending on the root cause of the issue. Simple fixes may be inexpensive, while replacing a security module or addressing wiring problems can be more costly.

9. Can resetting the vehicle's computer system clear OBDII code B1A20 in a Dodge?

Resetting the computer system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.

10. Does OBDII code B1A20 affect the overall performance of a Dodge vehicle?

While code B1A20 is more related to the security system, unresolved issues may impact the vehicle's starting capabilities and overall functionality, making it essential to address the problem promptly.