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Function Test
- Turn engine off. Disconnect electrical connector from vacuum pump and valve assembly. Apply battery (+) power to terminal No. 2, and ground 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, remove battery (+) power from terminal No. 2. If throttle does not fully close within 3 seconds, check actuator. See ACTUATOR
under COMPONENT TESTS. If actuator is okay, replace vacuum pump and valve assembly.
Courtesy of SUBARU OF AMERICA, INC.