Minimum Throttle Position Not Learned
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P2176 SAAB 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
- Throttle plate sticking due to carbon build-up
- Engine Control Module
How do I fix code P2176 SAAB?
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 2005-2009 Saab 97x:
- 2005-2009 Saab 97x Factory Service Bulletin OBDII Code P2176
Cost of diagnosing the P2176 SAAB code
The cost of diagnosing the P2176 SAAB 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 P2176 code is set whe the difference between the predicted and the actual throttle position is more than a calibrated amount for more than 1.5 seconds.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- No throttle pedal response
P2176 SAAB Description
The Engine Control Module (ECM) is the control center for the Throttle Actuator Control (TAC) system. The ECM determines the drivers intent and then calculates the appropriate throttle response. The ECM achieves throttle positioning by providing a pulse width modulated voltage to the TAC motor. The TAC system uses the following circuits for Motor control 1 and Motor control 2.
Two processors are also used to monitor the TAC system data. Both processors are located within the ECM. Both processors monitor each other’s data to verify that the indicated throttle position is correct.
