AutoCodesLexus – C1930 Lexus

C1930 Lexus Code - Open In Front Metal Board Temperature Sensor Circuit

Quick Answer

The Front Active Stabilizer Control ECU consists of a metal board, control board, power source IC, step-up circuit, Electrically Erasable Programmable Read-Only Memory (EEPROM), and other parts. Common causes include Faulty Front Active Stabilizer Control ECU, Faulty Front Active Stabilizer Relay, Faulty Rear Active Stabilizer Relay. 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
C1930 Lexus indicates Open In Front Metal Board Temperature Sensor Circuit.
Common causes
Common causes include Faulty Front Active Stabilizer Control ECU, Faulty Front Active Stabilizer Relay, Faulty Rear Active Stabilizer Relay.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 740
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 05, 2020
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Code C1930 Lexus Description

The Front Active Stabilizer Control ECU consists of a metal board, control board, power source IC, step-up circuit, Electrically Erasable Programmable Read-Only Memory (EEPROM), and other parts. If a problem occurs in the Front Active Stabilizer Control ECU and PIG power source circuit, a Diagnostic Trouble Code (DTC) is stored.
OBDII Code C1930 Lexus - Open In Front Metal Board Temperature Sensor Circuit - AutoCodes.com
C1930 Lexus Code - Open In Front Metal Board Temperature Sensor Circuit

What are the Possible Causes of the DTC C1930 Lexus?

  • Faulty Front Active Stabilizer Control ECU
  • Faulty Front Active Stabilizer Relay
  • Faulty Rear Active Stabilizer Relay
  • Front Active Stabilizer Control ECU harness is open or shorted
  • Front Active Stabilizer Control ECU circuit poor electrical connection

How to Fix the DTC C1930 Lexus?

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 C1930 Lexus 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 C1930 Lexus Code

1. What does the OBDII code C1930 mean on a Lexus?

C1930 indicates an issue in the Open in Front Metal Board Temperature Sensor Circuit, which monitors temperature for proper vehicle operation.

2. What are the common symptoms of the C1930 code in a Lexus?

Symptoms include inconsistent cabin temperature, malfunctioning climate control, or a warning light on the dashboard.

3. What causes the C1930 code to appear in a Lexus?

Common causes include a faulty front metal board temperature sensor, damaged wiring, poor electrical connections, or a malfunctioning climate control module.

4. How can I diagnose the C1930 code in my Lexus?

Use an OBDII scanner to confirm the code, inspect the sensor and its wiring for damage, and test the circuit for continuity using a multimeter.

5. Can I still drive my Lexus with a C1930 code?

Yes, but it may affect the climate control system’s performance, causing discomfort or inconsistent function.

6. How do I fix the C1930 code in a Lexus?

Repairs might include replacing the front metal board temperature sensor, repairing or replacing damaged wiring, or ensuring secure electrical connections.

7. How much does it cost to repair the C1930 code in a Lexus?

Costs vary, but replacing the sensor typically ranges from $100 to $300, including parts and labor, depending on the vehicle's model and location.

8. Can the C1930 code clear itself?

No, the code usually requires proper diagnosis and repair to be cleared, although disconnecting the battery may temporarily reset it.

9. What tools are needed to troubleshoot the C1930 code?

You’ll need an OBDII scanner, a multimeter for testing the circuit, and basic tools to access and inspect the sensor.

10. Is the C1930 code specific to Lexus vehicles?

While the code is more commonly associated with Lexus models, similar codes may appear in other Toyota vehicles with comparable systems.

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