Code No. P2135: Throttle Position Sensor (Main and Sub) Range/Performance Problem






OPERATION



  • Refer to Code No. P0122: Throttle Position Sensor (main) Circuit Low Input .
  • Refer to Code No. P0222: Throttle Position Sensor (sub) Circuit Low Input .

FUNCTION



  • Engine-A/T-ECU checks the throttle position sensor output signal characteristics for abnormal conditions.

TROUBLE JUDGMENT


Check Conditions
  • Ignition switch is in "ON" position.
  • Throttle position sensor (main) output voltage is 0.2 - 4.8 V.
  • Throttle position sensor (sub) output voltage is 0.2 - 4.8 V
Judgment Criterion
  • Total output voltage of main and sub throttle position sensors is less than 4.5 V or is more than 5.5 V.

PROBABLE CAUSES



  • Failed throttle position sensor
  • Harness damage in throttle position sensor circuit or loose connector contact
  • Failed engine-A/T-ECU

DIAGNOSIS PROCEDURE

STEP 1. Connector check: B-31 electronic-controlled throttle valve connector

Q. Is the check results normal?
Go to Step 2.
Repair or replace the connector.

STEP 2. Perform resistance measurement at B-31 electronic-controlled throttle valve connector.

  • Disconnect connector, and measure at harness side.
  • Resistance between terminal No. 4 and earth.
OK: Continuity (2 Ω or less)

Q. Is the check result normal?
Go to Step 6.
Go to Step 3.

STEP 3. Connector check: D-217 engine-A/T-ECU connector

Q. Is the check result normal?
Go to Step 4.
Repair or replace the connector.

STEP 4. Check harness between B-31 (terminal No. 4) electronic-controlled throttle valve connector and D-217 (terminal No. 105) engine-A/T-ECU connector.

  • Check earthing line for damage.

Q. Is the check result normal?
Go to Step 5.
Repair the damaged harness wire.

STEP 5. Check the trouble symptoms

Q. Does trouble symptom persist?
Replace the engine-A/T-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).

STEP 6. Connector check: D-217 engine-A/T-ECU connector

Q. Is the check result normal?
Go to Step 7.
Repair or replace the connector.

STEP 7. Check harness between B-31 (terminal No. 2) electronic-controlled throttle valve connector and D-217 (terminal No. 106) engine-A/T-ECU connector.

  • Check power supply line for damage.

Q. Is the check result normal?
Go to Step 8.
Repair the damaged harness wire.

STEP 8. Check harness between B-31 (terminal No. 1) electronic-controlled throttle valve connector and D-217 (terminal No. 115) engine-A/T-ECU connector.

  • Check output line for damage.

Q. Is the check result normal?
Go to Step 9.
Repair the damaged harness wire.

STEP 9. Check harness between B-31 (terminal No. 3) electronic-controlled throttle valve connector and D-217 (terminal No. 113) engine-A/T-ECU connector.

  • Check output line for damage.

Q. Is the check result normal?
Go to Step 10.
Repair the damaged harness wire.

STEP 10. Replace the throttle body assembly.

  • After replacing the throttle body assembly, re-check the trouble symptoms.

Q. Does trouble system persist?
Replace the engine-A/T-ECU.
Check end.