AutoCodes – Generic – P155C

P155C Code - Cruise Control Resume/Acceleration Switch 2 Circuit

Quick Answer

The Cruise Control Switch is an input to the Body Control Module (BCM). Common causes include Faulty Cruise Control Switch, Cruise Control Switch harness is open or shorted, Cruise Control Switch 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: P155C indicates Cruise Control Resume/Acceleration Switch 2 Circuit.
Common causes: Common causes include Faulty Cruise Control Switch, Cruise Control Switch harness is open or shorted, Cruise Control Switch 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 2,427

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 Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P155C Description

The Cruise Control Switch is an input to the Body Control Module (BCM). The BCM monitors the cruise control on/off, set/coast, resume/accelerate and cancel switches via the cruise control switch signal circuit in order to detect when the driver has requested to perform a cruise control function. The BCM detects a specific voltage signal on the cruise control switch signal circuit when a switch is applied. The Engine Control Module (ECM) receives the requested cruise control switch function from the BCM via a serial data message. The BCM monitors the cruise control switch. The BCM sets the OBDII code when the cruise control switch is not to factory specifications.

OBDII Code P155C - Cruise Control Resume/Acceleration Switch 2 Circuit - AutoCodes.com — P155C Code - Cruise Control Resume/Acceleration Switch 2 Circuit

What does this mean?

What are the Possible Causes of the DTC P155C?

Faulty Cruise Control Switch
Cruise Control Switch harness is open or shorted
Cruise Control Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC P155C?

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 P155C 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 P155C code?

Need more information on how to fix the P155C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P155C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P155C Bmw — Throttle Valve Actuator 2 Target Position Timeout
P155C Buick — Cruise Control Resume/Acceleration Switch 2 Circuit
P155C Cadillac — Cruise Control Resume/Acceleration Switch 2 Circuit
P155C Chevrolet — Cruise Control Resume/Acceleration Switch 2 Circuit
P155C GMC — Cruise Control Resume/Acceleration Switch 2 Circuit
P155C MINI — Throttle Valve Actuator 2 Target Position Timeout

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 P155C Code

1. What does the OBDII code P155C mean?

P155C indicates an issue with the Cruise Control Resume/Acceleration Switch 2 Circuit, typically related to a malfunction in the cruise control system's electrical circuits.

2. What are the common symptoms of code P155C?

Symptoms may include the cruise control not functioning properly, the cruise control light not illuminating, or the system failing to resume or accelerate.

3. What causes the P155C code to appear?

The most common causes are a faulty cruise control resume/acceleration switch, damaged wiring or connectors, or a malfunctioning cruise control module.

4. Can a blown fuse cause the P155C code?

Yes, a blown fuse associated with the cruise control system can disrupt the circuit and trigger the P155C code.

5. How do I diagnose the P155C code?

Start by visually inspecting the wiring and connectors for damage, test the cruise control switch for proper function, and check for blown fuses related to the circuit.

6. Is it safe to drive with code P155C?

Yes, it is generally safe to drive, but the cruise control system will likely be inoperative until the issue is resolved.

7. How can I fix the P155C code?

Repairs may involve replacing the faulty cruise control switch, repairing damaged wiring, cleaning corroded connectors, or replacing a blown fuse.

8. Can software issues cause the P155C code?

While rare, a software glitch in the vehicle's control module may occasionally cause this code. In such cases, updating or reprogramming the module may resolve the issue.

9. How much does it cost to repair the P155C code?

Repair costs vary but typically range from $50 to $200, depending on whether the switch, wiring, or other components need replacement.

10. Will clearing the P155C code solve the problem?

Clearing the code without addressing the underlying issue may temporarily remove the warning, but the code will likely return until proper repairs are made.