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C1533 Lexus Code - Power Steering Temperature Sensor Circuit is Low or High

Quick Answer

The C1533 diagnostic trouble code for Lexus vehicles indicates that there is a problem with the Power Steering Temperature Sensor Circuit being either too low or too high. Common causes include Faulty power steering temperature sensor, Wiring issues in the power steering temperature sensor circuit, Low power steering fluid level. 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
C1533 Lexus indicates Power Steering Temperature Sensor Circuit is Low or High.
Common causes
Common causes include Faulty power steering temperature sensor, Wiring issues in the power steering temperature sensor circuit, Low power steering fluid level.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code C1533 Lexus Description

The C1533 diagnostic trouble code for Lexus vehicles indicates that there is a problem with the Power Steering Temperature Sensor Circuit being either too low or too high. The power steering temperature sensor is responsible for monitoring the temperature of the power steering fluid. This information is crucial for the power steering system to adjust its operation based on the fluid temperature to ensure optimal performance and prevent damage to the system.

OBDII Code C1533 Lexus - Power Steering Temperature Sensor Circuit is Low or High
C1533 Lexus Code - Power Steering Temperature Sensor Circuit is Low or High

Common Causes of C1533 Lexus

  1. Faulty power steering temperature sensor
  2. Wiring issues in the power steering temperature sensor circuit
  3. Low power steering fluid level
  4. Contaminated power steering fluid
  5. Power steering pump failure

Symptoms of C1533 Lexus

  1. Stiff or difficult steering
  2. Power steering fluid leaks
  3. Power steering pump noise
  4. Power steering system failure
  5. Dashboard warning light related to power steering system

How to Fix C1533 Lexus

  1. Begin by conducting a visual inspection of the power steering temperature sensor and its wiring to check for any visible damage or loose connections.
  2. Test the power steering temperature sensor using a multimeter to determine if it is functioning correctly.
  3. Check the power steering fluid level and quality, topping off or replacing the fluid as needed.
  4. Inspect the power steering pump for any signs of damage or wear, replacing it if necessary.
  5. Clear the diagnostic trouble code from the vehicle's computer using an OBD-II scanner after completing the repairs.

Cost to Fix C1533 Lexus

The cost of repairing the Power Steering Temperature Sensor Circuit issue can vary depending on the specific cause of the problem and the extent of the repairs needed. On average, the cost of parts for this repair can range from $50 to $200, while the labor costs can range from $100 to $300. It's important to note that these are rough estimates, and actual costs may differ based on factors such as location, vehicle make and model, and the repair shop's labor rates. It's recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.

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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 C1533 Lexus Code

1. What does the OBDII code C1533 mean on a Lexus?

C1533 indicates an issue with the power steering temperature sensor circuit, specifically that its voltage is too low or too high, which can affect the operation of the power steering system.

2. What are the common symptoms of code C1533 in a Lexus?

Symptoms can include heavy or stiff steering, intermittent loss of power steering assist, or an illuminated power steering warning light on the dashboard.

3. What causes the C1533 code to appear?

Common causes include a faulty power steering temperature sensor, damaged or corroded wiring, poor electrical connections, or a malfunctioning power steering control module.

4. How do I diagnose a C1533 code in my Lexus?

Start by scanning for codes with an OBDII scanner, inspecting the wiring and connectors for damage, testing the power steering temperature sensor for proper function, and checking for continuity in the circuit.

5. Can I still drive my Lexus with a C1533 code?

While it may be possible to drive, the steering may become heavy or unresponsive, increasing the risk of an accident. It’s best to address the issue as soon as possible.

6. How do you fix the C1533 code on a Lexus?

Repairs may involve replacing the power steering temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the power steering control module.

7. How much does it cost to fix a C1533 code in a Lexus?

Repair costs can vary depending on labor rates and parts needed but typically range from $100 to $500, depending on the extent of the issue.

8. Can I reset the C1533 code without fixing the problem?

You can clear the code with an OBDII scanner, but if the underlying issue isn’t addressed, the code will likely return, and steering performance may remain compromised.

9. Where is the power steering temperature sensor located in a Lexus?

The power steering temperature sensor is usually located within or near the power steering system, often integrated into the power steering rack or fluid reservoir.

10. What tools are needed to fix a C1533 code in a Lexus?

You may need an OBDII scanner, a multimeter for electrical testing, basic hand tools for repairs, and possibly a service manual for wiring diagrams and troubleshooting steps.

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