B2708 GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC B2708 GMC?
- 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 GMC?
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 GMC 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 GMC Code
1. What does the OBDII code B2708 mean on a GMC vehicle?
The B2708 code indicates a "Gearshift Unlock Circuit High" issue, meaning the circuit responsible for unlocking the gearshift is experiencing a high voltage condition.
2. What are the common symptoms of code B2708 in a GMC?
Common symptoms include the gearshift being stuck in park, difficulty shifting out of park, or the shift interlock system not functioning properly.
3. What causes the B2708 code to appear on a GMC?
Possible causes include a faulty shift interlock solenoid, damaged wiring or connectors in the gearshift unlock circuit, or a malfunctioning brake pedal switch.
4. Can driving with a B2708 code damage my GMC vehicle?
Driving may not cause direct damage, but being unable to shift out of park can leave the vehicle stranded and cause inconvenience.
5. How do I diagnose the B2708 code on my GMC?
Diagnose the issue by inspecting the shift interlock solenoid, checking for damaged or corroded wiring, and testing the brake pedal switch for proper functionality.
6. What tools are needed to fix the B2708 code on a GMC?
You may need a multimeter to check voltage, a scan tool to clear the code, and basic hand tools to inspect and repair wiring or replace faulty components.
7. How do I fix the B2708 error code on my GMC?
Fixes may involve replacing the shift interlock solenoid, repairing damaged wiring, or replacing the brake pedal switch if it’s faulty.
8. Is the B2708 code covered under warranty for GMC vehicles?
It depends on your vehicle's warranty terms. Check with your GMC dealership to see if the repair is covered.
9. Can a low battery cause the B2708 code on a GMC?
A low or weak battery can sometimes contribute to electrical issues, but it’s less likely to be the root cause of this specific code.
10. How much does it cost to repair the B2708 code on a GMC?
Repair costs vary but typically range from $100 to $300, depending on whether parts like the shift interlock solenoid or brake pedal switch need replacement.
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