AutoCodes – Toyota – C1933 Toyota

C1933 Toyota Code - Short In Front Control 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
C1933 Toyota indicates Short In Front Control 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 945
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 C1933 Toyota 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 C1933 Toyota - Short In Front Control Board Temperature Sensor Circuit - AutoCodes.com
C1933 Toyota Code - Short In Front Control Board Temperature Sensor Circuit

What are the Possible Causes of the DTC C1933 Toyota?

  • 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 C1933 Toyota?

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 C1933 Toyota 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 C1933 Toyota code?

Need more information on how to fix the C1933 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1933 Toyota 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 C1933 Toyota Code

1. What are the common symptoms of OBDII code C1933 in a Toyota related to a short in the front control board temperature sensor circuit?

- Common symptoms may include inaccurate temperature readings on the dashboard, issues with climate control functions, and possible warning lights on the instrument panel.

2. What are the possible causes of OBDII code C1933 indicating a short in the front control board temperature sensor circuit in a Toyota?

- Causes can include a faulty temperature sensor, damaged wiring or connectors, a short circuit in the sensor circuit, or issues with the control board itself.

3. How can I diagnose the source of the short in the front control board temperature sensor circuit causing OBDII code C1933 in my Toyota?

- Diagnosis typically involves checking the temperature sensor for proper operation, inspecting the wiring harness for any damage or shorts, and testing the control board for functionality.

4. Can I drive my Toyota safely with OBDII code C1933 related to a short in the front control board temperature sensor circuit?

- It is generally not recommended to drive your vehicle with unresolved OBDII codes, as they can potentially indicate underlying issues that may affect safety and performance.

5. What are some repair tips for resolving OBDII code C1933 in a Toyota due to a short in the front control board temperature sensor circuit?

- Repair tips may include replacing the faulty temperature sensor, repairing any damaged wiring or connectors, and ensuring proper connections and insulation to prevent future shorts.

6. Is it possible to reset OBDII code C1933 related to a short in the front control board temperature sensor circuit in a Toyota without addressing the underlying issue?

- While clearing the code may temporarily turn off the warning light, it will not fix the root cause of the problem and the code is likely to reappear until the issue is resolved.

7. How much does it typically cost to repair OBDII code C1933 caused by a short in the front control board temperature sensor circuit in a Toyota?

- Repair costs can vary depending on the specific issue, but expenses may include the cost of a new temperature sensor, wiring repairs, and labor charges for diagnosis and repair.

8. Can extreme weather conditions or environmental factors contribute to the occurrence of OBDII code C1933 in a Toyota?

- Yes, extreme temperatures, moisture exposure, or other environmental factors can potentially damage the temperature sensor, wiring, or control board components, leading to a short circuit.

9. Are there any preventive maintenance steps I can take to avoid encountering OBDII code C1933 due to a short in the front control board temperature sensor circuit in my Toyota?

- Regularly inspecting and maintaining the climate control system, checking for loose connections, and keeping the vehicle's wiring harness protected can help prevent issues that may trigger this code.

10. Will OBDII code C1933 in a Toyota affect the overall performance of the vehicle, aside from issues related to temperature readings and climate control?

- While the primary impact may be related to temperature sensor functionality and climate control, unresolved issues indicated by this code can potentially affect other systems or components in the vehicle over time.

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