B2708 Buick Code - Gearshift Unlock Circuit High
Quick Answer
The Body Control Module (BCM) controls the automatic transmission shift lock control solenoid by providing controlled battery voltage to the automatic transmission shift lock control solenoid. Common causes include Faulty Automatic Transmission Shift Lock Control Solenoid, Automatic Transmission Shift Lock Control Solenoid harness is open or shorted, Automatic Transmission Shift Lock Control 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
- B2708 Buick indicates Gearshift Unlock Circuit High.
- Common causes
- Common causes include Faulty Automatic Transmission Shift Lock Control Solenoid, Automatic Transmission Shift Lock Control Solenoid harness is open or shorted, Automatic Transmission Shift Lock Control 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.
Code B2708 Buick Description
What are the Possible Causes of the DTC B2708 Buick?
- Faulty Automatic Transmission Shift Lock Control Solenoid
- Automatic Transmission Shift Lock Control Solenoid harness is open or shorted
- Automatic Transmission Shift Lock Control Solenoid circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B2708 Buick?
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 B2708 Buick 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 B2708 Buick Code
1. What does the OBDII code B2708 mean on a Buick?
B2708 indicates a problem with the gearshift unlock circuit, specifically that the circuit is experiencing a high voltage condition.
2. What are common symptoms of the B2708 code in a Buick?
Common symptoms include the gearshift being stuck in park, the inability to shift out of park, or a malfunctioning shift interlock system.
3. What causes the B2708 code to appear in a Buick?
Possible causes include a faulty shift lock solenoid, damaged wiring or connectors in the gearshift unlock circuit, or an issue with the vehicle’s body control module (BCM).
4. Can I still drive my Buick with the B2708 code?
It may be difficult or impossible to drive if the gearshift is stuck in park. It’s recommended to address the issue promptly to avoid further complications.
5. How do I diagnose the B2708 code on my Buick?
Start by inspecting the gearshift unlock circuit wiring and connectors for damage or corrosion. Then, test the shift lock solenoid and check the voltage levels in the circuit.
6. What repairs can fix the B2708 code in a Buick?
Repairs may include replacing a faulty shift lock solenoid, repairing damaged wiring or connectors, or reprogramming or replacing the body control module (BCM) if necessary.
7. How much does it cost to fix the B2708 code on a Buick?
Repair costs can vary, but replacing a shift lock solenoid typically costs $150–$300, while BCM repairs or replacements can be more expensive, ranging from $300–$800.
8. Can a dead battery cause the B2708 code in a Buick?
A low or dead battery is unlikely to directly cause this code, but electrical issues related to the battery can potentially affect the gearshift unlock circuit’s performance.
9. Is the B2708 code a common issue in Buick vehicles?
While not extremely common, the B2708 code can occur in Buicks, especially in older models with worn electrical components or shift interlock systems.
10. Do I need a professional to repair the B2708 code on my Buick?
If you have experience with automotive electrical systems, you may be able to diagnose and repair the issue yourself. However, a professional mechanic is recommended for complex repairs like BCM replacement.
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