Throttle Body: Testing and Inspection

Throttle Body Test

Carbon Accumulation Check

1. Connect the HDS to the data link connector (DLC) (A) located behind the driver's side of the front console.

2. Turn the ignition switch to ON (II).

3. Make sure the HDS communicates with the ECM. If it doesn't, go to the DLC circuit troubleshooting. Testing and Inspection

4. Start the engine. Hold the engine speed at 3,000 rpm without load (in neutral) until the radiator fan comes on, then let it idle.

5. Check the REL TP SENSOR in the DATA LIST with the HDS. The reading should be below 2.46 deg. If it is not, clean the throttle body. Procedures






Throttle Position Learning Check

1. Connect the HDS to the data link connector (DLC) (A) located behind the driver's side of the front console.

2. Turn the ignition switch to ON (II).

3. Make sure the HDS communicates with the ECM. If it doesn't, go to the DLC circuit troubleshooting. Testing and Inspection

4. Select the INSPECTION MENU with the HDS.

5. Do the TP LEARNING CHECK in the ETCS TEST If needed, clean the throttle body.. Procedures