Hand-held tester:
- Connect hand-held tester and read voltage for accelerator pedal position sensor data.
PREPARATION:
- Connect the hand-held tester to the DLC3.
- Turn ON the ignition switch. Push the hand-held tester main switch.
- On the hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ETCS / ACCEL POS #1 and ACCEL POS #2.
CHECK:
Read the voltage for the accelerator pedal position sensor data.
OK:
ACCELERATOR PEDAL VOLTAGEAccelerator Pedal ACCEL POS #1 ACCEL POS #2 Released 0.5 to 1.1 V 1.5 to 2.9 V Depressed 2.5 to 4.6 V 3.5 to 5.5 V - OK : Replace ECM (see COMPONENTS ).
- NG : Go to next step.
- Check accelerator pedal assembly (accelerator pedal position sensor) (see INSPECTION
).
- NG : Replace accelerator pedal assembly.
- OK : Go to next step.
- Check voltage between terminals VPA and EPA, and VPA2 and EPA2 of ECM connector.
PREPARATION:
- Remove the glove compartment (see COMPONENTS ).
- Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals VPA and EPA, and VPA2 and EPA2 of the ECM connector.
OK:
VOLTAGEAccelerator Pedal Voltage Accelerator Pedal VPA - EPA VPA2 - EPA2 Released 0.5 to 1.1 V 1.5 to 2.9 V Depressed 2.5 to 4.6 V 3.9 to 5.5 V Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- OK : Replace ECM (see COMPONENTS ).
- NG : Go to next step.
- Check for open and short in wire harness in VCPA, VCP2, VPA, VPA2, EPA and EPA2 circuits between ECM and accelerator pedal position sensor (see HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
in INTRODUCTION article).
- OK : Repair or replace.
- NG : Replace accelerator pedal assembly (see COMPONENTS ).