P2101 HONDA - Electronic Throttle Control System Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?
Possible causes
- Faulty Throttle Actuator Control Actuator
- Throttle Actuator Control Actuator harness is open or shorted
- Throttle Actuator Control Actuator circuit poor electrical connection
  What does this mean?
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2101 Honda Description

The Electronic Throttle Control System (ETCS) controls the throttle valve opening. The system is composed of the throttle actuator, the throttle valve, Throttle Position (TP) sensors A and B, the throttle actuator control module, the throttle actuator control module relay, the Accelerator Pedal Position (APP) sensor, and the Powertrain Control Module (PCM). The Accelerator Pedal Position (APP) sensor is operated via the throttle cable to determine the accelerator opening value when the driver presses the accelerator pedal. The accelerator pedal opening value is converted to a signal in the APP sensor and transmitted to the PCM to compute the target position. The target position signal is then transmitted to the throttle actuator control module. 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 PCM. When the PCM receives the malfunction data from the throttle actuator control module, the PCM detects the malfunction of the throttle actuator system and a DTC is stored.

P2101 Honda Information for specific Honda models
Related Information
Repair Importance Level: 3
 
1=Low 2=Medium 3=High  
Repair Difficulty Level: 2
 
1=Easy 2=Moderate 3=Hard  
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