Hand-Held Tester:
- Connect hand-held tester, and read the voltage for accelerator pedal position sensor data.
PREPARATION:
- Connect the hand-held tester to the DLC3.
- Turn the ignition switch ON and push the hand-held tester main switch ON.
- 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 POSITION AND VOLTAGE SPECIFICATIONAccelerator pedal ACCEL POS #1 ACCEL POS #2 Released 0.5 to 1.1 V 1.2 to 2.0 V Depressed 2.6 to 4.5 V 3.4 to 5.3V - OK: Replace ECM (See ENGINE CONTROL MODULE (ECM) ).
- NG: Go to next step.
- Check for open and short in harness and connector between accelerator pedal position sensor and ECM.
PREPARATION:
- Disconnect the A14 accelerator pedal position sensor connector.
- Disconnect the E9 ECM connector.
CHECK:
Measure the resistance between the wire harness side connectors.
OK:
Standard (Check for open):
TESTER CONNECTION AND SPECIFIED CONDITIONTester Connection Specified Condition VPA1 (A14-5) - VPA (E9-22) Below 1 Ω EP1 (A14-3) - EPA (E9-28) Below 1 Ω VCP1 (A14-6) - VCPA (E9-26) Below 1 Ω VPA2 (A14-2) - VPA2 (E9-23) Below 1 Ω EP2 (A14-1) - EPA2 (E9-29) Below 1 Ω VCP2 (A14-4) - VCP2 (E9-27) Below 1 Ω Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard (Check for short):
TESTER CONNECTION AND SPECIFIED CONDITIONTester Connection Specified Condition VPA1 (A14-5) or VPA (E9-22) - Body ground 10 kΩ or higher EP1 (A14-3) or EPA (E9-28) - Body ground 10 kΩ or higher VCP1 (A14-6) or VCPA (E9-26) - Body ground 10 kΩ or higher VPA2 (A14-2) or VPA2 (E9-23) - Body ground 10 kΩ or higher EP2 (A14-1) or EPA2 (E9-29) - Body ground 10 kΩ or higher VCP2 (A14-4) or VCP2 (E9-27) - Body ground 10 kΩ or higher - NG: Repair or replace harness or connector.
- OK: Replace accelerator pedal assembly.