GSIC - Global Service Information Center

### 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)

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)

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)

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)

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