Engine-Codes - Generic - P099A

P099A - Shift Solenoid 'G' Control Circuit Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?

P099A Possible Causes

  • Faulty Shift Solenoid 'G'
  • Shift Solenoid 'G' harness is open or shorted
  • Shift Solenoid 'G' circuit poor electrical connection

How do I fix code P099A

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P099A code

Labor: 1.0

The cost of diagnosing the P099A code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P099A Meaning

The Transmission Control Module (TCM) monitors the Shift Solenoid signal. The TCM sets the OBDII code when the Shift Solenoid is not to factory specifications.

P099A More Information

Need more information on how to fix the P099A code?
Get Access to Factory Service Manuals

Need more help?

Get the P099a code diagnosed by a professional: Find a repair shop in your area