Actuator-Turbo Precontrol

NOTE: The following turbocharger actuator test is also included in the turbocharger test/inspection sequence because the actuator, named below, is only serviced (replaced) with the turbocharger as an assembly.





Actuator-Turbo Precontrol/ System Operation
1. Connect the SST (Engine Signal Monitor Adaptor Harness) to the powertrain control module engine (PCME).
2. Turn ignition switch to ON.
3. Short the PCME terminal 4V and verify that the operating sound is heard.
4. It no sound is heard, check the turbo precontrol solenoid valve.
Refer to Solenoid Valve-Turbo Precontrol:




Inspection
1. Disconnect the air hoses and attached one to the SST and plug the other pipe as shown.
2. Verify that the actuator rod is moved when applying compressed air pressure to 69-98 kPa (0.7-1.0 kgf/cm2, 10-14 psi).

CAUTION
- Applying more than 98 kPa (1.0 kgf/cm2, 14 psi) of compressed can damage the actuator.

3. Replace turbocharger, if necessary.