STEP 1. Perform resistance measurement at electronic-controlled throttle valve connector.
- Disconnect connector, and measure at harness side.
- Resistance between terminal engine-ECU TPSE line and body earth.
OK: Continuity (2 Ω or less)
Is the check result normal?
Go to Step 4.
Go to Step 2.
STEP 2. Check of damage in TPSE line between electronic-controlled throttle valve connector and engine-ECU connector.
Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.
STEP 3. M.U.T.-IIISE diagnosis code
STEP 4. Check of damage in TPS5 line between electronic-controlled throttle valve connector and engine-ECU connector.
Is the check result normal?
Go to Step 5.
Repair the connector(s) or wiring harness.
STEP 5. Check of damage in TPSM line between electronic-controlled throttle valve connector and engine-ECU connector.
Is the check result normal?
Go to Step 6.
Repair the connector(s) or wiring harness.
STEP 6. Check of damage in TPSS line between electronic-controlled throttle valve connector and engine-ECU connector.
Is the check result normal?
Go to Step 7.
Repair the connector(s) or wiring harness.
STEP 7. Replace throttle body assembly.
- After replacing the throttle body assembly, reconfirm whether the diagnosis code is set.
Is the diagnosis code set?
Replace the engine-ECU.
Check end.