P0977 2015 Chevrolet Silverado Code - Shift Solenoid 'B' Open Or Short To Power
Quick Answer
The shift solenoid 2 is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve. 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
- P0977 2015 Chevrolet Silverado indicates Shift Solenoid 'B' Open Or Short To Power.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve.
- 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 P0977 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0977 2015 Chevrolet Silverado?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty Transmission Control Solenoid Valve
- Transmission Control Solenoid Valve harness is open or shorted
- Transmission Control Solenoid Valve circuit poor electrical connection
How to Fix the DTC P0977 2015 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 P0977 2015 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 P0977 2015 Chevrolet Silverado Code
1. What does OBDII code P0977 mean on a 2015 Chevrolet Silverado?
Code P0977 indicates an issue with Shift Solenoid 'B,' specifically an open circuit or short to power in the transmission control system.
2. What are the common symptoms of code P0977 in a 2015 Chevrolet Silverado?
Symptoms may include harsh or delayed shifting, the transmission stuck in one gear, reduced fuel efficiency, and the illumination of the check engine light.
3. What causes the P0977 code to appear on a 2015 Chevrolet Silverado?
Common causes include a faulty shift solenoid 'B,' damaged wiring or connectors, a short circuit, or a malfunctioning transmission control module (TCM).
4. Can I drive my 2015 Chevrolet Silverado with code P0977?
While the truck may still be drivable, operating it with this code can lead to further transmission damage and reduced performance. Prompt diagnosis and repair are recommended.
5. How is the P0977 code diagnosed on a 2015 Chevrolet Silverado?
A mechanic will typically use a scan tool to confirm the code, inspect the wiring and connectors for damage, test the shift solenoid 'B' for proper operation, and check the TCM for faults.
6. How do I fix code P0977 on my 2015 Chevrolet Silverado?
Repairs may involve replacing the faulty shift solenoid 'B,' repairing or replacing damaged wiring and connectors, or, in rare cases, replacing the transmission control module (TCM).
7. How much does it cost to repair code P0977 on a 2015 Chevrolet Silverado?
The cost varies, but replacing a shift solenoid typically ranges from $200 to $500, including parts and labor. Additional wiring or TCM repairs may increase the cost.
8. Can a P0977 code be caused by low transmission fluid?
Low transmission fluid is not a direct cause of code P0977, but it can lead to poor transmission performance, which may exacerbate existing issues.
9. How do I prevent code P0977 from occurring on my 2015 Chevrolet Silverado?
Regular maintenance, including checking transmission fluid levels and inspecting wiring and connectors, can help prevent transmission system issues that may trigger this code.
10. Will resetting the check engine light fix code P0977 on a 2015 Chevrolet Silverado?
Resetting the light will clear the code temporarily, but if the underlying issue is not resolved, the code and symptoms will likely return.
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