Throttle Position (TP) Sweep Inspection

Throttle position (TP) sweep inspection

1. Connect the WDS or equivalent to the DLC-2.
2. Turn the ignition switch to the ON position.
3. Verify that none of the following DTC are displayed:
- P0122, P0123, P0222, P0223, P2101, P2106, P2107, P2108, P2109, P2112, P2119, P2122, P2123, P2127, P2128, P2135, P2136, P2138
- If any one DTC is displayed, perform DTC inspection.

4. Access the TP_REL PID.
5. Verify that the PID reading is within the CTP value. (See PCM INSPECTION.)
- If the PID reading is out of range, perform the following:
- Remove the air duct from throttle valve body.
- Verify that the throttle valve opens when accelerator pedal is depressed.
- If the throttle valve opens, inspect the throttle position sensor and the related wiring harness.
- If the throttle valve does not open, inspect the throttle actuator control motor and the related wiring harness.

6. Gradually depress the throttle pedal and verify that the PID reading increases lineally.
- If the PID reading drops momentarily, inspect the following:
- Throttle position sensor

7. Fully depress the throttle pedal and verify that the PID reading is within the WOT value. (See PCM INSPECTION.)
- If the PID reading is out of range, perform the following:
- Remove the air duct from throttle valve body.
- Verify that the throttle valve opens when throttle pedal is depressed.
- If the throttle valve opens, inspect the throttle position sensor and the related wiring harness.
- If the throttle valve does not open, inspect the throttle actuator control motor and the related wiring harness.