AutoCodes – Generic – C155E

C155E Code - Ride Height Pressure Vent Control

Quick Answer

The Air Suspension Control Module (ASCM) monitors the Air Suspension Solenoid. Common causes include Faulty Air Suspension Solenoid Assembly, Air Suspension Solenoid Assembly harness is open or shorted, Air Suspension Solenoid Assembly 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: C155E indicates Ride Height Pressure Vent Control.
Common causes: Common causes include Faulty Air Suspension Solenoid Assembly, Air Suspension Solenoid Assembly harness is open or shorted, Air Suspension Solenoid Assembly 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 2,450

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 Oct 31, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C155E Description

The Air Suspension Control Module (ASCM) monitors the Air Suspension Solenoid. The ASCM sets the OBDII code when the ASCM detects the valve control circuit is shorted to ground while the ignition is in the Run position.

OBDII Code C155E - Ride Height Pressure Vent Control - AutoCodes.com — C155E Code - Ride Height Pressure Vent Control

What does this mean?

What are the Possible Causes of the DTC C155E?

Faulty Air Suspension Solenoid Assembly
Air Suspension Solenoid Assembly harness is open or shorted
Air Suspension Solenoid Assembly circuit poor electrical connection
Faulty Air Suspension Control Module (ASCM)

How to Fix the DTC C155E?

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 does this mean?

Code Tech Notes

C155E-11-RIDE HEIGHT PRESSURE VENT CONTROL - CIRCUIT SHORT TO GROUND
C155E-12-RIDE HEIGHT PRESSURE VENT CONTROL - CIRCUIT SHORT TO BATTERY
C155E-13-RIDE HEIGHT PRESSURE VENT CONTROL - CIRCUIT OPEN
C155E-92-RIDE HEIGHT PRESSURE VENT CONTROL - PERFORMANCE OR INCORRECT OPERATION (OVERUSE DTC)
C155E-96-RIDE HEIGHT PRESSURE VENT CONTROL - COMPONENT INTERNAL FAILURE

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C155E 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 C155E code?

Need more information on how to fix the C155E code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C155E code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C155E Chrysler — Ride Height Pressure Vent Control
C155E Dodge — Ride Height Pressure Vent Control
C155E Jeep — Ride Height Pressure Vent Control
C155E RAM — Ride Height Pressure Vent Control

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 C155E Code

1. What are common symptoms of OBDII code C155E (Ride Height Pressure Vent Control)?

- Common symptoms include issues with the vehicle's ride height adjustment system, unusual suspension behavior, and warning lights on the dashboard.

2. What causes OBDII code C155E to trigger?

- This code is typically triggered by a malfunction in the ride height pressure vent control system, such as a faulty pressure sensor or vent control module.

3. How can I diagnose the cause of OBDII code C155E?

- Diagnosing the exact cause of this code may require a scan tool to access the system and check for specific error codes related to the ride height pressure vent control.

4. Can I continue driving with OBDII code C155E present?

- It is not recommended to continue driving with this code present, as it can affect the vehicle's suspension system and potentially lead to further damage or safety issues.

5. How can I repair OBDII code C155E (Ride Height Pressure Vent Control)?

- Repairing this code may involve replacing the faulty pressure sensor, vent control module, or other components within the ride height pressure vent control system.

6. Are there any DIY tips for fixing OBDII code C155E?

- DIY tips may include checking for loose connections, inspecting the wiring harness for damage, and ensuring proper installation of any replaced components.

7. Is it necessary to reset the OBDII system after repairing code C155E?

- Yes, it is recommended to reset the OBDII system after repairing this code to clear the fault codes and ensure proper functioning of the ride height pressure vent control system.

8. How can I prevent OBDII code C155E from recurring?

- Regular maintenance of the vehicle's suspension system, including checking for leaks and proper functioning of components, can help prevent the recurrence of this OBDII code.

9. Can a professional mechanic help with diagnosing and repairing OBDII code C155E?

- Yes, a professional mechanic with experience in diagnosing and repairing suspension system issues can help identify the exact cause of this code and perform the necessary repairs.

10. Are there any safety precautions to consider when dealing with OBDII code C155E?

- It is important to avoid driving the vehicle if there are noticeable issues with the suspension system, as this can affect the vehicle's handling and safety on the road.