6 V6-3.0L DOHC (2003)
Throttle Position Sensor: Testing and Inspection
Throttle Position (TP) Sweep Inspection
Throttle position (TP) Sweep inspection
1. Connect the WDS or equivalent to the DLC-2.
2. Turn ignition switch to ON position.
3. Verify that following DTCs are not displayed:
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P0121, P0122, P0123, P0221, P0222, P0223, P2100, P2101, P2102, P2103, P2107, P2108, P2119, P2122, P2123, P2127, P2128, P2135,
P2136
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If any DTC is displayed, perform DTC inspection. (See DTC TABLE. See: Powertrain Management/Computers and Control Systems/Testing
and Inspection/Diagnostic Trouble Code Descriptions)
4. Access TP_REL PID.
5. Verify that the PID reading is within the CTP value. (See PCM INSPECTION.)
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If the PID reading is out of range, perform the following:
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Remove air duct from throttle body.
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Verify that throttle valve moves when the accelerator pedal is depressed.
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If the throttle valve moves, inspect the following:
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TP sensor and related harness
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If the throttle valve does not move, inspect the following:
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Throttle actuator control motor and related harness
6. Gradually move the throttle valve and verify that the PID reading increases linearly.
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If the PID reading drops momentarily, inspect the following TP sensor.
7. Fully depress the accelerator pedal and verify that the PID reading is within the WOT value. (See PCM INSPECTION.)
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If the PID reading is out of range, perform the following:
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Remove air duct from throttle valve body.
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Verify that the throttle valve moves when the accelerator pedal is depressed.
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If the throttle valve moves, inspect the TP sensor and related harness.
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If the throttle valve does not move, inspect the throttle actuator control motor and related harness.