AutoCodes – Generic – B1470

B1470 Code - Lamp Headlamp Input Circuit Failure

Quick Answer

The Body Control Module (BCM) monitors the Lamp Headlamp. Common causes include Faulty Lamp Headlamp, Lamp Headlamp harness is open or shorted, Lamp Headlamp 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: B1470 indicates Lamp Headlamp Input Circuit Failure.
Common causes: Common causes include Faulty Lamp Headlamp, Lamp Headlamp harness is open or shorted, Lamp Headlamp 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 10,802

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 Apr 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1470 Description

The Body Control Module (BCM) monitors the Lamp Headlamp. The BCM sets the OBDII code when the Lamp Headlamp is not to factory specifications.

OBDII Code B1470 - Lamp Headlamp Input Circuit Failure - AutoCodes.com — B1470 Code - Lamp Headlamp Input Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1470?

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

How to Fix the DTC B1470?

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 B1470 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 B1470 code?

Need more information on how to fix the B1470 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1470 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1470 Chrysler — Channel 4 Audio Speaker Output Circuit Low
B1470 Dodge — Channel 4 Audio Speaker Output Circuit Low
B1470 Jeep — Channel 4 Audio Speaker Output Circuit Low
B1470 RAM — Channel 4 Audio Speaker Output Circuit Low

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 B1470 Code

What does OBDII code B1470 indicate?

OBDII code B1470 indicates a failure in the headlamp input circuit, which means the vehicle's computer has detected an issue with the headlamp system's electrical signals.

What are common symptoms of code B1470?

Common symptoms include dashboard warning lights, malfunctioning headlights, dim or flickering lights, and failure to turn on headlamps.

What could cause the B1470 code to trigger?

Possible causes include damaged wiring or connectors, a faulty headlamp switch, blown fuses, or a malfunctioning headlamp assembly.

How can I diagnose the B1470 code?

To diagnose B1470, visually inspect the headlamp wiring and connectors for damage, test the headlamp switch for proper operation, and check for any blown fuses.

What repairs are typically needed for code B1470?

Repairs may involve replacing damaged wiring, repairing or replacing the headlamp switch, or fixing or replacing the headlamp assembly.

Can a dead battery cause the B1470 code?

While a dead battery might not directly trigger the B1470 code, it can cause electrical issues that lead to the headlamp system malfunctioning, potentially setting off the code.

How can I clear the B1470 code after repairs?

You can clear the B1470 code using an OBDII scanner or by disconnecting the vehicle's battery for a short period, then reconnecting it.

Is it safe to drive with the B1470 code?

Driving with the B1470 code is not recommended, as it may indicate that your headlights are not functioning properly, which can be dangerous, especially at night.

Could the B1470 code affect other vehicle systems?

Yes, since the headlamp input circuit is part of the vehicle's electrical system, issues with it can potentially affect other systems that rely on proper headlight operation or the vehicle's computer.