Honda Element. Manual - part 75

Fig. 215: Throttle Position (TP) Sensor Circuit Diagram 

General 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 engine 
control module (ECM)/powertrain control module (PCM).

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

The 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 ECM/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. 

When the output voltage to the throttle actuator exceeds the specification for a set time, the throttle actuator 
control module detects a malfunction and transmits the malfunction data to the ECM/PCM. When the 
ECM/PCM receives the malfunction data from the throttle actuator control module, the ECM/PCM detects a 
malfunction of the throttle actuator system and stores a DTC. 

Monitor Execution, Sequence, Duration, DTC Type, OBD Status 

MONITOR DESCRIPTION 

Enable Conditions 

ENABLE CONDITIONS 

Malfunction Threshold 

The current flow to the throttle actuator is 16 A or more for at least 0.2 second. 

Diagnosis Details 

Conditions for illuminating the MIL 

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the 
ECM/PCM memory. 

Conditions for clearing the MIL 

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic 
runs. 

Execution

Continuous

Sequence

None

Duration

0.2 second or more

DTC Type

One drive cycle, MIL ON

OBD Status

N/A

Condition

Minimum

Maximum

Battery voltage

6.0 V

-

Ignition switch

ON

No active DTCs

P2101, P2108, P2135, P2176, U0107

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by 
disconnecting the battery. 

DTC P2122 (37): ADVANCED DIAGNOSTICS 

DTC P2122: ACCELERATOR PEDAL POSITION (APP) SENSOR A (THROTTLE POSITION 
SENSOR D) CIRCUIT LOW VOLTAGE 

Fig. 216: Accelerator Pedal Position Sensor - Circuit Diagram 

General Description 

Accelerator pedal position (APP) sensor A is a part of the electronic throttle control system, and it is used to 
convert the position of the accelerator pedal into electrical signals. Based on these signals, the engine control 
module (ECM)/powertrain control module (PCM) controls the throttle actuator so that the throttle position 
agrees with the accelerator pedal position. If the signal voltage from APP sensor A is a set value or less, the 
ECM/PCM detects a malfunction and stores a DTC. 

Monitor Execution, Sequence, Duration, DTC Type, OBD Status 

MONITOR DESCRIPTION 

Enable Conditions 

ENABLE CONDITIONS 

Execution

Continuous

Sequence

None

Duration

0.2 seconds or more

DTC Type

One drive cycle, MIL ON

OBD Status

N/A

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

Malfunction Threshold 

The APP sensor A output voltage is 0.1 V or less for at least 0.2 seconds. 

Diagnosis Details 

Conditions for illuminating the MIL 

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the 
ECM/PCM memory. 

Conditions for clearing the MIL 

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic 
runs. 

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by 
disconnecting the battery. 

DTC P2123 (37): ADVANCED DIAGNOSTICS 

DTC P2123: ACCELERATOR PEDAL POSITION (APP) SENSOR A (THROTTLE POSITION 
SENSOR D) CIRCUIT HIGH VOLTAGE 

Fig. 217: Accelerator Pedal Position Sensor - Circuit Diagram

Condition

 

Ignition switch

ON

No active DTCs

P2123

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element