THROTTLE POSITION (TP) SENSOR INSPECTION[L3]
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Note
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• Perform the following inspection only when directed.
Voltage Inspection
1. Verify that no DTC related to APP sensor has been detected.
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• If any DTCs related to APP sensor have been detected, perform the DTC inspection.
2. Start the engine and warm it up (ECT: more than 80°C {176 °F}).
3. Turn the ignition switch to ON position (Engine off).
4. Verify that the PCM terminal 2M and 2I change smoothly while throttle valve is gradually opened.
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• If as verified, go to next step.
• If not as verified, perform the “Circuit Open/Short Inspection”.
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― If there is no open or short circuit, replace the throttle body.
5. Verify that the PCM terminal 2M and 2I voltages are as shown in the following table.
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• If voltage is not as following table, perform the “Circuit Open/Short Inspection”.
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― If there is no open or short circuit, replace the throttle body.
TP sensor output voltage
|
Condition
|
PCM terminal
2M
(TP sensor No.1)
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PCM terminal
2I
(TP sensor No.2)
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CTP
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0.4—0.6 V
|
4.4—4.6 V
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WOT
|
4.4—4.7 V
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0.3—0.6 V
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Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION[L3].)
2. Inspect the following wiring harnesses for open or short circuit. (Continuity check)
Open circuit
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• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
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― Throttle body terminal A and PCM terminal 2M
― Throttle body terminal B and PCM terminal 2K
― Throttle body terminal C and PCM terminal 2I
― Throttle body terminal D and PCM terminal 2O
Short circuit
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• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
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― Throttle body terminal A and power supply
― Throttle body terminal A and body ground
― Throttle body terminal B and power supply
― Throttle body terminal B and body ground
― Throttle body terminal C and power supply
― Throttle body terminal C and body ground
― Throttle body terminal D and power supply
