2018 / ECLIPSE CROSS / EC - Workshop Manual
13 -FUEL > 13A-DIRECT INJECTION AND MULTIPOINT FUEL INJECTION (DI AND MPI) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > CODE NO. P0223 THROTTLE POSITION SENSOR (SUB) CIRCUIT HIGH INPUT
Code No. P0223: Throttle Position Sensor (sub) Circuit High Input
OPERATION
- A power voltage of 5 V is applied to the electronic-controlled throttle valve from the engine-ECU connector terminal TPS5.
- The power voltage is earthed to the engine-ECU connector terminal TPSE from the electronic-controlled throttle valve.
- The sensor signal is inputted to the engine-ECU connector terminal TPSS from the electronic-controlled throttle valve output terminal.
FUNCTION
- The throttle position sensor converts the throttle valve position into voltage and inputs it into the engine-ECU.
- The engine-ECU controls the throttle valve opening angle.
TROUBLE JUDGEMENT
Check Condition
- Ignition switch is "ON" position.
Judgement Criterion
- Throttle position sensor (sub) output voltage is more than 4.8 V.
FAIL-SAFE AND BACKUP FUNCTION
- Throttle opening degree is restricted.
- Throttle opening degree position is in default position if throttle position sensor (main) fails.
PROBABLE CAUSES
- Failed throttle position sensor (sub)
- Open circuit and harness damage in throttle position sensor (sub) circuit or loose connector contact
- Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE data list
STEP 2. 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 5.
Go to Step 3.
STEP 3. Check of open circuit, and damage in TPSE line between electronic-controlled throttle valve connector and engine-ECU connector.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
STEP 4. M.U.T.-IIISE data list
STEP 5. Replace the electronic-controlled throttle valve
- After replacing the electronic-controlled throttle valve, reconfirm whether the diagnosis code is set.
Is the diagnosis code set?
Replace the engine-ECU.
Check end.