AutoCodes – Generic – B1424

B1424 Code - Solar Sensor Circuit Driver Side

Quick Answer

The solar sensor, which is installed on the upper side of the instrument panel, detects sunlight and controls the air conditioning AUTO mode. Common causes include Faulty Solar Sensor, Solar Sensor harness is open or shorted, Solar Sensor 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: B1424 indicates Solar Sensor Circuit Driver Side.
Common causes: Common causes include Faulty Solar Sensor, Solar Sensor harness is open or shorted, Solar Sensor 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 29,336

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 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code B1424 Description

The solar sensor, which is installed on the upper side of the instrument panel, detects sunlight and controls the air conditioning AUTO mode. The output voltage from the solar sensor varies in accordance with the amount of sunlight. When the sunlight increases, the output voltage increases. As the sunlight decreases, the output voltage decreases. The air conditioning amplifier detects changes in the output voltage from the solar sensor

OBDII Code B1424 - Solar Sensor Circuit Driver Side - AutoCodes.com — B1424 Code - Solar Sensor Circuit Driver Side

What does this mean?

What are the Possible Causes of the DTC B1424?

Faulty Solar Sensor
Solar Sensor harness is open or shorted
Solar Sensor circuit poor electrical connection
Faulty Air Conditioning Amplifier

How to Fix the DTC B1424?

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 B1424 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 B1424 code?

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Information for Specific Makes

B1424 Buick — Control Module Power Circuit
B1424 Cadillac — Control Module Power Circuit
B1424 Chevrolet — Control Module Power Circuit
B1424 GMC — Control Module Power Circuit
B1424 Lexus — Solar Sensor Circuit Driver Side
B1424 Scion — Solar Sensor Circuit Driver Side
B1424 Toyota — Solar Sensor Circuit Driver Side

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.