DTC    P2121/19    Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance

for Preparation Click here


DESCRIPTION

HINT:
This is repair procedure for the accelerator pedal position sensor.

Refer to DTC P2120/19 on page Click here.

DTC No.
DTC Detection Condition
Trouble Area
P2121/19
Condition 1 continues for 2 seconds:
  1. Difference between VPA1 and VPA2 exceeds the threshold
    (1 trip detection logic)
  1. Accelerator pedal position sensor circuit
  2. Accelerator pedal position sensor
  3. ECM

WIRING DIAGRAM

Refer to DTC P2120/19 on page Click here.

INSPECTION PROCEDURE

HINT:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, and other data from the time the malfunction occurred.

NOTICE:
If the ECM is replaced, the new ECM needs initialization (Click here).


When using intelligent tester:

1.READ DATA LIST (ACCEL POSITION 1, ACCEL POSITION 2)
FI07052E07

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch ON and turn the intelligent tester ON.

  1. Enter the following menus: Powertrain / Engine / Data List / Accel Position 1 and Accel Position 2.

  1. Read the values.

    Standard voltage:
    Accelerator Pedal
    		Accel Position 1
    		Accel Position 2
    Released
    		0.6 to 1.0 V
    		1.4 to 1.8 V
    Depressed
    		2.9 to 4.2 V
    		3.7 to 5.0 V



OK
REPLACE ECM
NG


2.CHECK WIRE HARNESS (ACCELERATOR PEDAL POSITION SENSOR - ECM)
A111102E01

  1. Disconnect the A13 sensor connector.

  1. Disconnect the E5 ECM connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    A17-1 (VCP2) - E5-27 (VCP2)
    A17-2 (EP2) - E5-29 (EPA2)
    A17-3 (VPA2) - E5-23 (VPA2)
    A17-4 (VCP1) - E5-26 (VCPA)
    A17-5 (EP1) - E5-28 (EPA)
    A17-6 (VPA1) - E5-22 (VPA)
    		Below 1 Ω
    A17-1 (VCP2) or E5-27 (VCP2) - Body ground
    A17-2 (EP2) or E5-29 (EPA2) - Body ground
    A17-3 (VPA2) or E5-23 (VPA2) - Body ground
    A17-4 (VCP1) or E5-26 (VCPA) - Body ground
    A17-5 (EP1) or E5-28 (EPA) - Body ground
    A17-6 (VPA1) or E5-22 (VPA) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE ACCELERATOR PEDAL ROD ASSEMBLY 


When not using intelligent tester:

1.INSPECT ECM (VPA, VPA2 VOLTAGE)
A066060E36

  1. Turn the ignition switch ON.

  1. Measure the voltage of the ECM connector.

    Standard voltage:
    Tester Connection
    		Accelerator Pedal Condition
    		Specified Condition
    E5-22 (VPA) - E5-28 (EPA)
    		Released
    		0.6 to 1.0 V
    E5-22 (VPA) - E5-28 (EPA)
    		Depressed
    		2.9 to 4.2 V
    E5-23 (VPA2) - E5-29 (EPA2)
    		Released
    		1.4 to 1.8 V
    E5-23 (VPA2) - E5-29 (EPA2)
    		Depressed
    		3.7 to 5.0 V



OK
REPLACE ECM
NG


2.CHECK WIRE HARNESS (ACCELERATOR PEDAL POSITION SENSOR - ECM)
A111102E01

  1. Disconnect the A13 sensor connector.

  1. Disconnect the E5 ECM connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    A17-1 (VCP2) - E5-27 (VCP2)
    A17-2 (EP2) - E5-29 (EPA2)
    A17-3 (VPA2) - E5-23 (VPA2)
    A17-4 (VCP1) - E5-26 (VCPA)
    A17-5 (EP1) - E5-28 (EPA)
    A17-6 (VPA1) - E5-22 (VPA)
    		Below 1 Ω
    A17-1 (VCP2) or E5-27 (VCP2) - Body ground
    A17-2 (EP2) or E5-29 (EPA2) - Body ground
    A17-3 (VPA2) or E5-23 (VPA2) - Body ground
    A17-4 (VCP1) or E5-26 (VCPA) - Body ground
    A17-5 (EP1) or E5-28 (EPA) - Body ground
    A17-6 (VPA1) or E5-22 (VPA) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE ACCELERATOR PEDAL ROD ASSEMBLY