AutoCodes – Chrysler – B1604 Chrysler

B1604 Chrysler Code - Right Solar Sensor Circuit Low

Quick Answer

The Heating Ventilation and Air Conditioning (HVAC) A/C Heater Module uses a variety of sensors to adjust HVAC operation to obtain optimal performance. Common causes include Faulty Right Solar Sensor, Right Solar Sensor harness is open or shorted, Right 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: B1604 Chrysler indicates Right Solar Sensor Circuit Low.
Common causes: Common causes include Faulty Right Solar Sensor, Right Solar Sensor harness is open or shorted, Right 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 1,256

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 May 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1604 Chrysler Description

The Heating Ventilation and Air Conditioning (HVAC) A/C Heater Module uses a variety of sensors to adjust HVAC operation to obtain optimal performance. These sensors are continuously monitored by the A/C Heater Module to assure that they are in range. The A/C Heater Control monitors the Right Solar Sensor. If the Right Sunload Sensor input is out of range toward the low voltage threshold, the A/C Heater Control will set the OBDII code.

OBDII Code B1604 Chrysler - Right Solar Sensor Circuit Low - AutoCodes.com — B1604 Chrysler Code - Right Solar Sensor Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1604 Chrysler?

Faulty Right Solar Sensor
Right Solar Sensor harness is open or shorted
Right Solar Sensor circuit poor electrical connection
Faulty Heating Ventilation and Air Conditioning (HVAC) A/C Heater Module

How to Fix the DTC B1604 Chrysler?

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 B1604 Chrysler 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.

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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 B1604 Chrysler Code

1. What are the common symptoms of OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low)?

Symptoms may include incorrect automatic headlight operation, inconsistent brightness control, or malfunctioning ambient light sensor.

2. What are the possible causes of OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low)?

Common causes include a faulty solar sensor, damaged wiring or connectors in the circuit, or issues with the sensor's alignment or calibration.

3. How can I diagnose OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low) at home?

You can use a multimeter to test the voltage output of the solar sensor, visually inspect the wiring harness for any damage, and ensure the sensor is clean and unobstructed.

4. Can a DIY enthusiast repair OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low) on their own?

Depending on your experience level, you may be able to replace the solar sensor or repair wiring issues. However, it's recommended to consult a professional if you're unsure.

5. Is it safe to continue driving with OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low) present?

While the code may not affect the overall drivability of your vehicle, it's essential to address it promptly to ensure proper functioning of your vehicle's lighting system.

6. What are some tips for preventing OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low) from recurring?

Regularly inspecting and cleaning the solar sensor, ensuring proper alignment, and addressing any wiring issues promptly can help prevent the code from coming back.

7. Are there any common mistakes to avoid when dealing with OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low)?

Avoid overlooking simple fixes like cleaning the sensor or checking for loose connections before diving into more complex repairs or sensor replacements.

8. Can extreme weather conditions affect OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low)?

Yes, extreme heat, cold, or exposure to harsh elements can potentially impact the performance of the solar sensor and contribute to the circuit low error.

9. Does OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low) require immediate attention from a mechanic?

While it's not an emergency, addressing the issue promptly can help maintain the proper functioning of your vehicle's lighting system and prevent potential safety hazards.

10. Is it necessary to reset the OBDII system after repairing OBDII code B1604 Chrysler (Right Solar Sensor Circuit Low)?

Yes, it's advisable to clear the code and reset the OBDII system using a diagnostic scanner after resolving the issue to ensure the error is no longer present.