Function Test
- Turn off engine. Disconnect electrical connector from vacuum pump and valve assembly. Apply battery positive lead to terminal No. 2, and negative lead to terminals No. 1 and 4. SeeFig 1
. Ground terminal No. 3. If throttle does not fully open within 3 seconds, replace vacuum pump and valve assembly.
- If throttle fully opens within 3 seconds, disconnect battery lead from terminal No. 2. If throttle does not fully close within 3 seconds, check actuator. See ACTUATOR TEST
under TESTING. If actuator is okay, replace vacuum pump and valve assembly.
Courtesy of SUBARU OF AMERICA, INC.