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Fault Code Nos.
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Fault Code No.: 15 Diagnostic Code No.: 01
Item: Throttle position sensor: open or short circuit detected.
Fail-Safe System: Able to Start Engine | Able to Drive Vehicle
Indicated: Throttle position sensor signal
• 14-20 (fully closed position)
• 92-102 (fully open position)
• 14-20 (fully closed position)
• 92-102 (fully open position)
Procedure: • Check with throttle valves fully closed.
• Check with throttle valves fully open.
• Check with throttle valves fully open.
Probable Cause of Confirmation of Service
Item Malfunction and Check Maintenance Job Completion
Item Malfunction and Check Maintenance Job Completion
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1
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Connection of Throttle Position Sensor Coupler.
Check the locking condition of the coupler. Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the pins. |
Improperly connected
Connect the coupler securely or replace the wire harness. |
Turn the main switch to "ON".
If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 2 below. |
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2
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Connection of ECU Coupler.
Check the locking condition of the coupler. Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the pins. |
Improperly connected
Connect the coupler securely or replace the wire harness. |
Turn the main switch to "ON".
If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 3 below. |
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3
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Wire Harness continuity.
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If there is an Open or Short Circuit, Replace the Wire Harness.
Between Throttle Position Sensor Coupler and ECU Coupler (Yellow-Yellow) Between Throttle Position Sensor Coupler and Joint Coupler (Blue-Blue) and (Black/Blue-Black/Blue) |
Turn the main switch to "ON".
If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 4 below. |
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4
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Installed condition of Throttle Position Sensor.
Check for looseness or pinching. |
Improperly installed Sensor
Reinstall or Adjust the Sensor. |
Turn the main switch to "ON".
If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 5 below. |
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5
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Defective Throttle Position Sensor.
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Check the Throttle Position Sensor signal.
Execute the diagnostic mode. (Code No. 01). When the throttle valves are fully closed: A value of 14-20 is indicated. When throttle valves are fully open: A value of 92-102 is indicated. If the indicated value is out of the specified range, replace the throttle position sensor. |
Turn the main switch to "ON".
If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 6 below. |
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6
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Malfunction in ECU.
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Replace the ECU
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