P2120-111
Diagnostic trouble codes
DESCRIPTION
The accelerator pedal position sensor is mounted on the accelerator pedal to detect how much the pedal is depressed. This is a non-contact sensor with hall elements. It has 2 sensors per sensor unit. One is used to detect the accelerator pedal position and the other to detect a malfunction in the sensor itself. In the accelerator pedal position sensor, the voltage applied to terminals VPA1 and VPA2 of the HV control ECU varies between 0 and 5 V in accordance with the accelerator pedal position. Terminal VPA2 is used to detect a malfunction in the sensor itself. The HV control ECU determines the current accelerator pedal position and controls the hybrid control system based on signals received from terminals VPA1 and VPA2.
| DTCNo. |
INF Code |
DTC Detection Condition |
Trouble Area |
| P2120 |
111 |
Main sensor value does not change while sub sensor value changes |
|
| P2121 |
106 |
Internal error of main sensor |
|
| P2121 |
114 |
Accelerator pedal does not smoothly return to its original position |
|
| P2125 |
112 |
Sub sensor value does not change while main sensor value changes |
|
| P2126 |
109 |
Internal error of sub sensor |
|
| P2138 |
110 |
Difference between main sensor value and sub sensor value is large |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1. REPLACE ACCELERATOR PEDAL ROD ASSEMBLY |
| NEXT | ||
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