P155A 2017 Chevrolet Silverado Code - Cruise Control Switch State Undetermined
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
- P155A 2017 Chevrolet Silverado indicates Cruise Control Switch State Undetermined.
- 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.
Code P155A 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC P155A 2017 Chevrolet Silverado?
- 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 P155A 2017 Chevrolet Silverado?
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 P155A 2017 Chevrolet Silverado 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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Frequently Asked Questions about P155A 2017 Chevrolet Silverado Code
1. What does the OBDII code P155A mean on a 2017 Chevrolet Silverado?
P155A indicates that the vehicle's computer cannot determine the state of the cruise control switch, which may affect the functionality of the cruise control system.
2. What are the common symptoms of the P155A code?
Common symptoms include the cruise control not engaging, intermittent cruise control operation, or the cruise control system being entirely unresponsive.
3. What causes the P155A code to appear?
This code can be triggered by a faulty cruise control switch, damaged wiring or connectors, a malfunctioning clock spring, or a software issue in the engine control module (ECM).
4. Can I still drive my 2017 Silverado if the P155A code is active?
Yes, the truck can still be driven, but the cruise control system may not function until the issue is resolved.
5. How is the P155A code diagnosed?
A technician will use a scan tool to confirm the code, inspect the cruise control switch and related wiring, and test the cruise control system for proper operation.
6. What are common fixes for the P155A code?
Repairs may include replacing the cruise control switch, repairing or replacing damaged wiring or connectors, or reprogramming the ECM if necessary.
7. How much does it cost to fix the P155A code?
The repair cost can vary depending on the issue but generally ranges from $100 to $300 for parts and labor, depending on the extent of the problem.
8. Can I fix the P155A code myself?
If you have experience with automotive electrical systems, you may be able to inspect and replace the cruise control switch or repair wiring, but a professional diagnosis is recommended.
9. Could a bad clock spring cause the P155A code?
Yes, a faulty clock spring can lead to an undetermined cruise control switch state because it affects the electrical connection to the switch.
10. Will clearing the P155A code with a scan tool fix the issue permanently?
Clearing the code may temporarily turn off the warning, but the underlying problem must be addressed to prevent the code from returning.
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