P099B
Shift Solenoid G Control Circuit Low
P099B is an OBD-II diagnostic trouble code meaning: Shift Solenoid G Control Circuit Low. Common causes: open or short circuit in solenoid circuit, damaged wiring harness. Estimated repair cost: $28–89.
Symptoms
- Incorrect gear shifting
- Switching delays
- Switching to emergency mode of the gearbox
- Check Engine Light on Dashboard
- Reduced vehicle dynamics
Causes
- Open or short circuit in solenoid circuit
- Damaged wiring harness
- Faulty solenoid G
- Poor contact in the connector
- Transmission control module (TCM) problems
How to Fix
- Check the integrity of the wiring and connectors
- Test solenoid resistance
- Check control circuit voltage
- Replace faulty solenoid if necessary
- Clear errors and take a test drive
Related codes
Error P099B by Vehicle Brand
FAQ
What does the P099B code mean?
P099B is an OBD-II diagnostic trouble code that indicates: Shift Solenoid G Control Circuit Low
What causes a P099B error code?
The most common causes of P099B include: Open or short circuit in solenoid circuit; Damaged wiring harness; Faulty solenoid G; Poor contact in the connector.
How do I fix a P099B diagnostic trouble code?
To fix P099B: Check the integrity of the wiring and connectors. Test solenoid resistance. Check control circuit voltage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P099B?
Limited driving only, diagnose soon
How much does it cost to fix P099B?
The estimated repair cost for P099B is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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