P099A
Shift Solenoid G Control Circuit Range/Performance
P099A is an OBD-II diagnostic trouble code meaning: Shift Solenoid G Control Circuit Range/Performance. Common causes: open or short circuit in solenoid g circuit, shift solenoid g malfunction. Estimated repair cost: $28–89.
Symptoms
- Erratic gear shifting
- Hard or abrupt shifts
- Switching to emergency mode of the gearbox
- The Check Engine light comes on
- Reduced vehicle dynamics
Causes
- Open or short circuit in solenoid G circuit
- Shift Solenoid G Malfunction
- Poor contact in circuit connectors
- Low or contaminated transmission fluid
- Transmission control module (TCM) problems
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the solenoid G control circuit for opens and shorts
- Check the resistance and performance of solenoid G
- Inspect connectors and wiring for corrosion or damage.
- Replace shift solenoid G if necessary
Related codes
Error P099A by Vehicle Brand
FAQ
What does the P099A code mean?
P099A is an OBD-II diagnostic trouble code that indicates: Shift Solenoid G Control Circuit Range/Performance
What causes a P099A error code?
The most common causes of P099A include: Open or short circuit in solenoid G circuit; Shift Solenoid G Malfunction; Poor contact in circuit connectors; Low or contaminated transmission fluid.
How do I fix a P099A diagnostic trouble code?
To fix P099A: Check the level and condition of the transmission fluid. Diagnose the solenoid G control circuit for opens and shorts. Check the resistance and performance of solenoid G. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P099A?
Limited driving only, diagnose soon
How much does it cost to fix P099A?
The estimated repair cost for P099A is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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