AutoCodes – Jeep – B1604 Jeep

B1604 Jeep 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 Jeep 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.

Save to My Repairs My Repairs

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

Code Popularity 967

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
Add Comment

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

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

What does this mean?

What are the Possible Causes of the DTC B1604 Jeep?

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 Jeep?

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 Jeep 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 B1604 Jeep code?

Need more information on how to fix the B1604 Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1604 Jeep 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 B1604 Jeep Code

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

- The common symptoms include the malfunction indicator light (MIL) coming on, issues with the automatic headlights, and potential loss of automatic climate control functionality.

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

- The possible causes include a faulty solar sensor, damaged wiring or connectors in the solar sensor circuit, or a problem with the sensor's calibration.

3. How can I diagnose OBDII code B1604 (Jeep) - Right Solar Sensor Circuit Low?

- Diagnosis involves using a scan tool to read the code, checking the solar sensor's wiring and connectors for damage, and testing the sensor's output using a multimeter.

4. Can I repair OBDII code B1604 (Jeep) - Right Solar Sensor Circuit Low myself?

- While some DIY enthusiasts may be able to address this issue by replacing the solar sensor or repairing damaged wiring, it's recommended to consult a professional for an accurate diagnosis and repair.

5. What is the function of the right solar sensor in a Jeep vehicle?

- The right solar sensor helps the vehicle's climate control system adjust settings based on the amount of sunlight hitting the vehicle, providing optimal comfort for passengers.

6. Are there any specific environmental conditions that can trigger OBDII code B1604 (Jeep) - Right Solar Sensor Circuit Low?

- Extreme sunlight exposure, thermal shock, or physical damage to the solar sensor can trigger this code and cause issues with the automatic systems relying on its input.

7. How important is it to address OBDII code B1604 (Jeep) - Right Solar Sensor Circuit Low promptly?

- While this code may not affect the vehicle's drivability, addressing it promptly ensures proper functioning of automatic systems like climate control and headlights, enhancing overall comfort and safety.

8. Can a dirty or obstructed solar sensor cause OBDII code B1604 (Jeep) - Right Solar Sensor Circuit Low?

- Yes, a dirty or obstructed solar sensor may not accurately detect sunlight levels, leading to incorrect readings and triggering the circuit low code.

9. Is it possible for OBDII code B1604 (Jeep) - Right Solar Sensor Circuit Low to be a false alarm?

- While rare, false alarms can occur due to intermittent sensor issues or temporary system glitches. It's advisable to clear the code and monitor the system before taking further action.

10. How can I prevent OBDII code B1604 (Jeep) - Right Solar Sensor Circuit Low from recurring?

- Regularly inspecting and cleaning the solar sensor, ensuring proper wiring connections, and addressing any issues promptly can help prevent the recurrence of this code.