ZDX V6-3.7L (2010)
Throttle Body: Testing and Inspection
Throttle Body Test
Carbon Accumulation Check
NOTE: If the malfunction indicator lamp (MIL) has been reported on, check for diagnostic trouble codes (DTCs).
1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
3. Make sure the HDS communicates with the PCM. If it doesn't, go to the DLC circuit troubleshooting See: Computers and Control
Systems/Testing and Inspection/Component Tests and General Diagnostics/DLC Circuit Troubleshooting.
4. Start the engine. Hold the engine speed at 3,000 rpm without load (in P or N) 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 percent. If it is not, clean the throttle body See:
Service and Repair/Procedures.
Throttle Position Learning Check
NOTE: If the malfunction indicator lamp (MIL) has been reported on, check for diagnostic trouble codes (DTCs).
1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
