P2176 HONDA - Throttle Actuator Control System Idle Position Not Learned
- Throttle Actuator Control Module harness open or shorted
- Throttle Actuator Control Module circuit poor electrical connection
- Check throttle body for binding-Clean throttle body
- Throttle body actuator malfunction
- Defective throttle body
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hard to start
- Rough or erratic idle speed
P2176 HONDA Description
The throttle actuator control module determines the throttle valve target position according to the signal received and operates the throttle actuator to move the throttle valve to the target position. The actual throttle valve position is determined by TP sensor A installed in the throttle body.
The throttle actuator control module compares the throttle valve target opening angle and the actual throttle valve opening angle from TP sensor A, and when the difference exceeds the specification, the throttle actuator control module transmits the malfunction data to the ECM. When the ECM receives the malfunction data from the throttle actuator control module,
the ECM/ detects the malfunction of the throttle actuator system and a DTC is stored.
P2176 HONDA Information for specific Honda models
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