Code No. P2135: Throttle Position Sensor (main and sub) Range/Performance Problem


OPERATION



  • Check code No. P0122: throttle position sensor (main) circuit low input (Refer to ).
  • Check code No. P0222: throttle position sensor (sub) circuit low input (Refer to ).

FUNCTION



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

TROUBLE JUDGMENT


Check Conditions
  • Throttle position sensor (main) output voltage is more than 0.2 V and is less than 4.8 V.
  • Throttle position sensor (sub) output voltage is more than 0.2 V and is less than 4.8 V.
Judgement Criterion
  • The sum of the output voltage of the throttle position sensors (main and sub) is less than 4.5 V, or more than 5.5 V.
Check Conditions
  • Throttle position sensor (main) output voltage is more than 0.2 V and is less than 4.8 V.
  • Throttle position sensor (sub) output voltage is more than 0.2 V and is less than 4.8 V.
  • Ignition switch is "ON" position.
  • Throttle position sensor (main and sub) output voltage is less than the target throttle position sensor (main) voltage by 0.9 V or less.
Judgement Criterion
  • Voltage obtained with the formula given below is more than 0.3 V: throttle position sensor (main) voltage - throttle position sensor (sub) voltage]
note The throttle position sensor voltage used for the judgment is converted into the throttle position sensor voltage for the internal processing by the engine-ECU.

FAIL-SAFE AND BACKUP FUNCTION



  • Throttle opening degree position is in default position.

PROBABLE CAUSES



  • Failed throttle position sensor
  • Harness damage in throttle position sensor circuit or loose connector contact

DIAGNOSIS PROCEDURE

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)

Q. Is the check result normal?
Go to Step 4.
Go to Step 2.

STEP 2. Check harness between electronic-controlled throttle valve connector terminal and engine-ECU connector terminal TPSE.

  • Check earthing line for damage.

Q. Is the check result normal?
Go to Step 3.
Repair or replace the connector, repair the damaged harness wire.

STEP 3. M.U.T.-III diagnosis code

  • Reconfirmation of diagnosis code.

Q. Is diagnosis code set?
Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).

STEP 4. Check harness between electronic-controlled throttle valve connector terminal and engine-ECU connector terminal TPS5.

  • Check power supply line for damage.

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

STEP 5. Check harness between electronic-controlled throttle valve connector terminal and engine-ECU connector terminal TPSM.

  • Check output line for damage.

Q. Is the check result normal?
Go to Step 6.
Repair or replace the connector repair the damaged harness wire.

STEP 6. Check harness between electronic-controlled throttle valve connector terminal and engine-ECU connector terminal TPSS.

  • Check output line for damage.

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

STEP 7. Replace throttle body assembly.

  • After replacing the throttle body assembly, reconfirm whether the diagnosis code is set.

Q. Is the diagnosis code set?
Replace the engine-ECU.
Check end.