AutoCodes – Lexus – C1628 Lexus

C1628 Lexus Code - Vehicle Height Sensor Failure

Quick Answer

The Rear Height Control Sensor Sub-Assembly RH is connected to the Parking Assist ECU. Common causes include Faulty Rear Height Control Sensor Sub-Assembly RH, Rear Height Control Sensor Sub-Assembly RH harness is open or shorted, Rear Height Control Sensor Sub-Assembly RH 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: C1628 Lexus indicates Vehicle Height Sensor Failure.
Common causes: Common causes include Faulty Rear Height Control Sensor Sub-Assembly RH, Rear Height Control Sensor Sub-Assembly RH harness is open or shorted, Rear Height Control Sensor Sub-Assembly RH 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 1,468

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 Nov 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1628 Lexus Description

The Rear Height Control Sensor Sub-Assembly RH is connected to the Parking Assist ECU. This Diagnostic Trouble Code (DTC) is stored when the parking assist ECU judges that vehicle height sensor signal received from the rear height control sensor sub-assembly RH is abnormal or has not changed (rear height control sensor sub-assembly RH seized).

OBDII Code C1628 Lexus - Vehicle Height Sensor Failure - AutoCodes.com — C1628 Lexus Code - Vehicle Height Sensor Failure

What does this mean?

What are the Possible Causes of the DTC C1628 Lexus?

Faulty Rear Height Control Sensor Sub-Assembly RH
Rear Height Control Sensor Sub-Assembly RH harness is open or shorted
Rear Height Control Sensor Sub-Assembly RH circuit poor electrical connection
Faulty Parking Assist ECU

How to Fix the DTC C1628 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 C1628 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 C1628 Lexus Code

1. What are the common symptoms of a Vehicle Height Sensor Failure (OBDII code C1628) in a Lexus?

- Common symptoms include uneven ride height, suspension issues, and warning lights related to the vehicle's height control system.

2. What are the possible causes of OBDII code C1628 (Vehicle Height Sensor Failure) in a Lexus?

- The code C1628 can be triggered by a faulty height sensor, wiring issues, damaged connectors, or problems with the suspension components.

3. How can I diagnose a Vehicle Height Sensor Failure in my Lexus when OBDII code C1628 is present?

- Use a diagnostic scanner to read the code, visually inspect the height sensor and wiring for damage, and perform a height sensor calibration to identify the issue.

4. Can a Vehicle Height Sensor Failure (OBDII code C1628) be repaired at home, or is professional help necessary?

- Depending on the cause, you may be able to repair it at home by replacing the faulty sensor or repairing damaged wiring. However, complex issues may require professional assistance.

5. Are there any temporary fixes or workarounds for OBDII code C1628 (Vehicle Height Sensor Failure) in a Lexus?

- Temporary fixes like resetting the system or disconnecting the battery may temporarily clear the code, but it's essential to address the underlying issue for a permanent solution.

6. Is it safe to continue driving with OBDII code C1628 (Vehicle Height Sensor Failure) in a Lexus?

- It is not recommended to drive with this code present, as it can affect the vehicle's handling, stability, and overall safety. Address the issue promptly.

7. How much does it typically cost to repair a Vehicle Height Sensor Failure (OBDII code C1628) in a Lexus?

- The cost of repair can vary based on the cause of the issue, parts needed, and labor costs. Budget for sensor replacement, wiring repairs, or potential suspension work.

8. Can a Vehicle Height Sensor Failure (OBDII code C1628) impact other systems or components in a Lexus?

- Yes, a faulty height sensor can affect the vehicle's overall suspension performance, ride comfort, and may trigger additional warning lights or codes if left unresolved.

9. Are there any preventative maintenance steps to avoid OBDII code C1628 (Vehicle Height Sensor Failure) in a Lexus?

- Regularly inspecting the height sensor, maintaining proper suspension components, and addressing any warning signs promptly can help prevent this issue.

10. How long does it typically take to repair a Vehicle Height Sensor Failure (OBDII code C1628) in a Lexus?

- The repair time can vary depending on the complexity of the issue and the availability of parts. It may take a few hours to a full day for diagnosis and repair.