AutoCodes – Lexus – C1533 Lexus

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

Quick Answer

The Power Steering ECU monitors itself for proper operation. Common causes include Faulty Power Steering ECU, Power Steering ECU harness is open or shorted, Power Steering ECU 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: C1533 Lexus indicates Power Steering Temperature Sensor Circuit is Low or High.
Common causes: Common causes include Faulty Power Steering ECU, Power Steering ECU harness is open or shorted, Power Steering ECU 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 1,128

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 Jan 31, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1533 Lexus Description

The Power Steering ECU monitors itself for proper operation. The Power Steering ECU sets the Diagnostic Trouble Code (DTC) when it detects an internal malfunction. If the Power Steering ECU Assembly stores this DTC, it will shut off the motor relay circuit (built into the Power Steering ECU Assembly) and stop power assist. However, power assist continues if this DTC is output.

OBDII Code C1533 Lexus - Power Steering Temperature Sensor Circuit is Low or High - AutoCodes.com — C1533 Lexus Code - Power Steering Temperature Sensor Circuit is Low or High

What does this mean?

What are the Possible Causes of the DTC C1533 Lexus?

Faulty Power Steering ECU
Power Steering ECU harness is open or shorted
Power Steering ECU circuit poor electrical connection

How to Fix the DTC C1533 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 C1533 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.

Need more information about the C1533 Lexus code?

Need more information on how to fix the C1533 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

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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. Itâ€™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 isnâ€™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.