AutoCodes – Chrysler – B1602 Chrysler

B1602 Chrysler Code - Left Solar Sensor Circuit High

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 Left Solar Sensor, Left Solar Sensor harness is open or shorted, Left 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: B1602 Chrysler indicates Left Solar Sensor Circuit High.
Common causes: Common causes include Faulty Left Solar Sensor, Left Solar Sensor harness is open or shorted, Left 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 1,779

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 B1602 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 Left Solar Sensor. If the Left Sunload Sensor input is out of range toward the high voltage threshold, the A/C Heater Control will set the OBDII code.

OBDII Code B1602 Chrysler - Left Solar Sensor Circuit High - AutoCodes.com — B1602 Chrysler Code - Left Solar Sensor Circuit High

What does this mean?

What are the Possible Causes of the DTC B1602 Chrysler?

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

How to Fix the DTC B1602 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 B1602 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 B1602 Chrysler Code

1. What are the common symptoms of OBDII code B1602 Chrysler (Left Solar Sensor Circuit High)?

The common symptoms include erratic behavior of the automatic headlights, inaccurate readings from the solar sensor, and the illumination of the dashboard warning light.

2. What are the possible causes of OBDII code B1602 Chrysler?

The potential causes of this code include a faulty solar sensor, damaged wiring or connectors in the sensor circuit, or a malfunction in the sensor control module.

3. How can I diagnose the cause of OBDII code B1602 Chrysler?

You can diagnose this code by performing a visual inspection of the solar sensor and its wiring, testing the sensor's output voltage, and using a scan tool to monitor live sensor data.

4. Can I repair OBDII code B1602 Chrysler on my own?

If you have experience in automotive electrical systems, you may be able to repair this code on your own by replacing the faulty solar sensor, repairing damaged wiring, or resetting the sensor control module.

5. Is it safe to continue driving with OBDII code B1602 Chrysler active?

While the vehicle may still be driveable with this code, it is recommended to address the issue promptly to ensure proper functioning of the automatic headlight system and to prevent further electrical issues.

6. Will resetting the OBDII code B1602 Chrysler make it go away permanently?

Resetting the code may temporarily clear the dashboard warning light, but if the underlying issue such as a faulty sensor or wiring is not addressed, the code is likely to reappear.

7. How much does it typically cost to repair OBDII code B1602 Chrysler?

The cost of repairing this code can vary depending on the cause of the issue, with expenses typically ranging from $100 to $300 for parts and labor.

8. Can extreme weather conditions affect the solar sensor and trigger OBDII code B1602 Chrysler?

Yes, extreme heat or cold can impact the performance of the solar sensor, leading to erroneous readings and potentially triggering the high circuit fault.

9. Are there any preventive measures to avoid OBDII code B1602 Chrysler from occurring?

Regularly inspecting the solar sensor and its wiring for damage, keeping the sensor clean from dirt and debris, and avoiding exposure to extreme weather conditions can help prevent this code from occurring.

10. Can a malfunctioning solar sensor impact other vehicle systems besides the automatic headlights?

While the primary impact of a faulty solar sensor is on the automatic headlight system, it can indirectly affect other electrical systems that rely on ambient light readings for operation.