Lexus ES: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY
(a) Before cleaning, or after cleaning the throttle body with motor assembly and installing it to the vehicle, turn the power switch on (IG) without operating the accelerator pedal sensor assembly.
NOTICE:
If the accelerator pedal sensor assembly has been operated, restart the procedure from the step above.
(b) Connect the GTS to the DLC3 and check for DTCs. If DTCs are stored, repair them by following the repair procedure flow. If DTCs are not stored, perform the throttle body operation check.
(c) Check throttle body operation.
(1) Enter the following menus:
Powertrain / Engine / Active Test / Control the ETCS Open/Close Slow Speed
(2) During Active Test operation, check the Data List items "Throttle Position Command" and "Throttle Position Sensor No.1 Voltage".
Powertrain > Engine > Active Test| Active Test Display |
|---|
| Control the ETCS Open/Close Slow Speed |
| Data List Display |
|---|
| Throttle Position Sensor No.1 Voltage |
| Throttle Position Command |
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| *a | Correct | *b | Incorrect |
| *c | Throttle Position Command | *d | Throttle Position Sensor No.1 Voltage |
| *e | Specified Condition | *f | 200 ms |
OK:
| Tester Display | Condition | Specified Condition |
|---|---|---|
| Throttle Position Command Throttle Position Sensor No.1 Voltage | Checked during Active Test operation at a voltage of 1.3 V to 2.1 V. | Response lag between Throttle Position Command and Throttle Position Sensor No.1 Voltage is within 200 ms. |
(3) Enter the following menus:
Powertrain / Engine / Active Test / Control the ETCS Open/Close Fast Speed
(4) During Active Test operation, check the Data List items "Throttle Position Command" and "Throttle Position Sensor No.1 Voltage".
Powertrain > Engine > Active Test| Active Test Display |
|---|
| Control the ETCS Open/Close Fast Speed |
| Data List Display |
|---|
| Throttle Position Sensor No.1 Voltage |
| Throttle Position Command |
.png)
| *a | Correct | *b | Incorrect |
| *c | Throttle Position Command | *d | Throttle Position Sensor No.1 Voltage |
| *e | Specified Condition | *f | 200 ms |
OK:
| Tester Display | Condition | Specified Condition |
|---|---|---|
| Throttle Position Command Throttle Position Sensor No.1 Voltage | Checked during Active Test operation at a voltage of 1.3 V to 2.1 V. | Response lag between Throttle Position Command and Throttle Position Sensor No.1 Voltage is within 200 ms. |
(d) If there was any abnormality found during the throttle body operation check, clean the throttle body, then reassemble it and perform the throttle body operation check again. If the operation returns to normal, the procedure is complete. If operation does not return to normal, replace the throttle body with motor assembly.
(e) Perform "Inspection After Repair" after replacing or cleaning the throttle body with motor assembly.
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