Hand-held tester
- Connect hand-held tester, and read voltage for accelerator pedal position sensor data.
PREPARATION:
- Connect the hand-held tester to DLC3.
- Turn the ignition switch ON and push the hand-held tester main switch ON.
CHECK:
Read the voltage for the accelerator pedal position sensor data.
OK:
- OK: Go to step 6 .
- NG: Go to next step.
- Check accelerator pedal position sensor (See THROTTLE BODY
).
- NG: Replace accelerator pedal position sensor.
- NG: Go to next step.
- Check voltage between terminals VC and E2 of ECM connector
PREPARATION:
- Remove the ECM hood (See ENGINE CONTROL MODULE (ECM) ).
- Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals VC and E2 of the ECM connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK:
Voltage: 5.4 to 5.5 V
- NG: Replace ECM (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
- OK: Go to next step.
- Check voltage between terminals VPA and E2, and VPA2 and E2 of ECM connector
PREPARATION:
- Remove the ECM hood (See ENGINE CONTROL MODULE (ECM) ).
- Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals VPA and E2, and VPA2 and E2 of the e ECM connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK:
- OK: Replace ECM (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
- NG: Go to next step.
- Check for open and short in harness and connector between accelerator pedal position sensor and ECM (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
).
- NG: Repair or replace harness or connector
- OK: Go to next step.
- Is the DTC P2120, P2122, or P2123 being output again?
PREPARATION:
- Clear the DTC (See PRE-CHECK ).
- Start the engine.
- Run the engine at idle for 15 seconds or more.
CHECK:
- Read the DTC (See PRE-CHECK ).
Result:
- B: System OK
- A: Replace ECM (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).