AutoCodes – Chevrolet – P1657 Chevrolet

P1657 Chevrolet Code - Skip Shift 1 To 4 Upshift System Control Circuit

Quick Answer

With the engine speed over 600 rpm, the Powertrain Control Module (PCM) detects the commanded state of the Upshift driver and the Actual state of the control circuit did not match, all conditions met for over 5 seconds. Common causes include Faulty Solenoid, Solenoid harness is open or shorted, Solenoid 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: P1657 Chevrolet indicates Skip Shift 1 To 4 Upshift System Control Circuit.
Common causes: Common causes include Faulty Solenoid, Solenoid harness is open or shorted, Solenoid 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 5,296

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 Sep 06, 2019

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 P1657 Chevrolet Description

OBDII Code P1657 Chevrolet - Skip Shift 1 To 4 Upshift System Control Circuit - AutoCodes.com — P1657 Chevrolet Code - Skip Shift 1 To 4 Upshift System Control Circuit

What does this mean?

What are the Possible Causes of the DTC P1657 Chevrolet?

Faulty Solenoid
Solenoid harness is open or shorted
Solenoid circuit poor electrical connection

How to Fix the DTC P1657 Chevrolet?

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 P1657 Chevrolet 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 P1657 Chevrolet code?

Need more information on how to fix the P1657 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1657 Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 P1657 Chevrolet Code

1. What are the common symptoms of OBDII code P1657 in a Chevrolet related to the Skip Shift 1 To 4 Upshift System Control Circuit?

- Common symptoms include difficulty shifting from 1st to 4th gear, the Check Engine Light illuminating, and the skip shift feature not functioning properly.

2. What are some possible causes of OBDII code P1657 in a Chevrolet?

- Possible causes can include a faulty skip shift solenoid, damaged wiring in the upshift system control circuit, or a malfunctioning transmission control module.

3. How can I diagnose the Skip Shift 1 To 4 Upshift System Control Circuit issue in my Chevrolet triggering code P1657?

- Diagnosing the issue involves checking the skip shift solenoid for proper operation, inspecting the wiring for any damage or corrosion, and using a scan tool to monitor the transmission control module signals.

4. Can I continue driving my Chevrolet if OBDII code P1657 is triggered?

- It is generally safe to drive the vehicle with code P1657, but it is recommended to address the issue promptly to prevent potential transmission problems and ensure proper vehicle performance.

5. What are some repair tips for resolving OBDII code P1657 in a Chevrolet with the Skip Shift 1 To 4 Upshift System Control Circuit problem?

- Repair tips may include replacing the skip shift solenoid, repairing damaged wiring, resetting the fault codes after repairs, and conducting a test drive to confirm the issue is resolved.

6. Does fixing OBDII code P1657 require professional assistance, or can it be a DIY repair?

- The complexity of the repair may vary, but unless you have experience with automotive electrical systems and diagnostics, it is recommended to seek professional assistance to accurately diagnose and resolve the issue.

7. How can I prevent OBDII code P1657 from recurring in my Chevrolet after it has been repaired?

- To prevent code P1657 from recurring, ensure regular maintenance of the transmission system, inspect and repair any damaged wiring promptly, and address any related issues that may contribute to the fault.

8. Are there any specific Chevrolet models known to have a higher incidence of OBDII code P1657 related to the Skip Shift system?

- While the code can occur in various Chevrolet models with the Skip Shift feature, some models, such as the Corvette, may have a higher incidence due to the presence of the skip shift function.

9. Can weather conditions or driving habits affect the triggering of OBDII code P1657 in a Chevrolet?

- Extreme weather conditions, aggressive driving habits, or prolonged periods of inactivity can potentially impact the Skip Shift 1 To 4 Upshift System Control Circuit, leading to the triggering of code P1657.

10. Is it necessary to clear the OBDII code P1657 after resolving the Skip Shift system issue in a Chevrolet?

- Yes, it is important to clear the fault codes using a scan tool after resolving the Skip Shift system issue to reset the Check Engine Light and ensure proper monitoring of the system for any new faults.