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
  • Harmess 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.