OBD II Scan Tool (Excluding Hand-Held Tester):
- Check voltage between terminals VPA and EPA, VPA2 and EPA2 of ECM connector.
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure the voltage between the specified terminals of the E9 ECM connector.
OK:
ACCELERATOR PEDAL POSITION AND TESTER CONNECTIONAccelerator Pedal Position Tester Connection Tester Connection VPA (E9-22) - EPA (E9-28) VPA2 (E9-23) -EPA2 (E9-29) Released 0.5 to 1.1 V 1.2 to 2.0 V Depressed 2.6 to 4.5 V 3.4 to 5.3 V - 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:
- Turn the ignition switch ON.
- Disconnect the A14 accelerator pedal position sensor connector.
CHECK:
Measure the voltage between the specified terminals of the E9 ECM connector.
OK:
TESTER CONNECTION AND SPECIFIED CONDITIONTester Connection Specified Condition VCPA (E9-26) - EPA (E9-28) 4.5 to 5.5 V VCP2 (E9-27) - EPA2 (E9-29) 4.5 to 5.5 V Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- NG: Replace ECM (See ENGINE CONTROL MODULE (ECM) ).
- OK: Replace accelerator pedal assembly.