Throttle Actuator Control Module Performance
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P2108 CHEVROLET Possible Causes
- Faulty Throttle Actuator Control (TAC) module
- Throttle Actuator Control (TAC) module harness is open or shorted
- Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires)
How do I fix code P2108 CHEVROLET?
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.
Tech Notes
- There is a factory service bulletin for the P2108 code on following Chevrolet vehicles:
- 2006-2007 Chevrolet Avalanche
- 2006-2007 Chevrolet Express 1500/2500/3500
- 2006-2007 Chevrolet Silverado
- 2006-2007 Chevrolet Silverado Flex Fuel
- 2006-2007 Chevrolet Silverado Hybrid
- 2006-2007 Chevrolet Silverado SS
- 2006-2007 Chevrolet Silverado 2500/3500 HD
- 2006-2007 Chevrolet Suburban
- 2006-2007 Chevrolet Tahoe
- Chevrolet Factory Service Bulletin OBDII Code P2108
Cost of diagnosing the P2108 CHEVROLET code
The cost of diagnosing the P2108 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The Throttle Actuator Control (TAC) module is unable to write or read data from the Random Access Memory (RAM)
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- No throttle response
P2108 CHEVROLET Description
The Throttle Actuator Control (TAC) module contains data that is essential for proper TAC operation. The TAC module continuously tests the integrity of this data. When the TAC module is unable to write or read data to and from Random Access Memory (RAM), or the TAC module is unable to correctly read data from the flash memory or and internal TAC module processor fault is detected and the Diagnostic Trouble Code (DTC) is set.