AutoCodes – Ford – B1472 Ford

B1472 Ford Code - Lamp Headlamp Input Circuit Short To Ground

Quick Answer

The Smart Junction Box (SJB) sends reference signals to the headlamp switch through circuits. Common causes include Faulty Headlamp Switch, Headlamp Switch harness is open or shorted, Headlamp Switch 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: B1472 Ford indicates Lamp Headlamp Input Circuit Short To Ground.
Common causes: Common causes include Faulty Headlamp Switch, Headlamp Switch harness is open or shorted, Headlamp Switch 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 3,717

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 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1472 Ford Description

The Smart Junction Box (SJB) sends reference signals to the headlamp switch through circuits. When the headlamp switch is placed in the HEADLAMPS ON position, the voltage signal is routed to ground through the circuit. If the SJB detects a fault with the headlamp switch inputs, the SJB turns the exterior lamps on by default. When the SJB detects the headlamp switch in the HEADLAMPS ON position and the multifunction switch in the LOW BEAM position, the SJB sends voltage through circuits to the low beam headlamps. When the SJB detects the headlamp switch in the HEADLAMPS ON position and the multifunction switch in the HIGH BEAM position, the SJB sends voltage through circuits to the high beam headlamps. The SJB sends a reference signal to the multifunction switch through circuits CLF27 (GN/BN) and CLF17 (WH/OG). When the multifunction switch is placed in the FLASH-TO-PASS or HIGH BEAM position, the voltage signal is routed to ground. When the SJB detects a request for the flash-to-pass, the SJB sends voltage to the high beam headlamps. The OBDII codes when the SJB detects a short to ground from the headlamps on request circuit or no input from the headlamp switch.

OBDII Code B1472 Ford - Lamp Headlamp Input Circuit Short To Ground - AutoCodes.com — B1472 Ford Code - Lamp Headlamp Input Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC B1472 Ford?

Faulty Headlamp Switch
Headlamp Switch harness is open or shorted
Headlamp Switch circuit poor electrical connection
Faulty Smart Junction Box (SJB)

How to Fix the DTC B1472 Ford?

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 B1472 Ford 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 B1472 Ford code?

Need more information on how to fix the B1472 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1472 Ford 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 B1472 Ford Code

1. What are the common symptoms of OBDII code B1472 for a Ford vehicle?

- Dim or flickering headlights, headlights not working, or headlight warning light on the dashboard.

2. What does the OBDII code B1472 Ford indicate?

- The code indicates a short to ground in the headlamp input circuit of the vehicle.

3. What are the possible causes of the Lamp Headlamp Input Circuit Short To Ground code?

- Potential causes include damaged wiring, a faulty headlamp switch, a defective headlight relay, or a malfunctioning headlight control module.

4. How can I diagnose the cause of OBDII code B1472 on my Ford?

- Use a multimeter to test the headlamp circuit for continuity, check the headlamp switch for proper operation, inspect the wiring for any damage, and test the headlight relay and control module.

5. How can I repair OBDII code B1472 on my Ford?

- Repair options may include repairing or replacing damaged wiring, replacing the headlamp switch, replacing the headlight relay, or replacing the headlight control module as needed.

6. Can driving with OBDII code B1472 cause further damage to my vehicle?

- Driving with this code may result in reduced visibility at night, posing a safety risk, and could potentially lead to draining the vehicle's battery if the headlamps are left on due to a malfunction.

7. Is it safe to continue driving my Ford with the headlamp input circuit short to ground issue?

- It is not recommended to drive the vehicle with this issue, as it can compromise the functionality of the headlights and affect visibility while driving, especially in low-light conditions.

8. Can I reset the OBDII code B1472 Ford without fixing the underlying issue?

- Resetting the code without addressing the root cause will only temporarily clear the error code, and the issue will likely reoccur until the underlying problem is fixed.

9. How much does it typically cost to repair OBDII code B1472 for a Ford?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve labor costs for diagnosis and repair, as well as the cost of any replacement parts needed.

10. Is OBDII code B1472 specific to Ford vehicles only?

- Yes, OBDII code B1472 for Lamp Headlamp Input Circuit Short To Ground is specific to Ford vehicles and may not apply to other vehicle makes and models.