Checking Connectors And Components
- Ignition off.
Check the throttle unit and engine control module (ECM) connectors. Check for contact resistance and oxidation.
Check the resistance values of the potentiometers in the throttle unit.
Check that the shutter in the throttle unit is not blocked or sticking. Clean as necessary.
Remedy as necessary.
Other information:
- For 5 cylinder turbocharged engines -2004, see SIGNAL DESCRIPTION
- For 5 cylinder turbocharged engines 2005-, see SIGNAL SPECIFICATION .
- For 6 cylinder engines -2004, see SIGNAL SPECIFICATION
- For 6 cylinder engines 2005-, see SIGNAL SPECIFICATION .
- For resistance values: COMPONENT SPECIFICATIONS
- For B5xx4T, see THROTTLE BODY (ELECTRONIC THROTTLE MODULE), REPLACING .
- For B6xx4T, see THROTTLE BODY (ELECTRONIC THROTTLE MODULE), REPLACING .
- For B5xx4T, see THROTTLE BODY (TB), CLEANING .
- For B6xx4x, see THROTTLE BODY (TB), CLEANING .
- see CHECKING WIRING AND TERMINALS
- Continue
Refer to VERIFICATION