Auxiliary Transmission Fluid Pump (ATFP) Motor Test
Auxiliary Transmission Fluid Pump (ATFP) Motor Test1. Disconnect the auxiliary transmission fluid pump (ATFP) motor connector.
2. Check for continuity between the ATFP motor connector terminals No. 1 and No. 3, and between terminals No. 1 and No. 2. There should be continuity.
3. Check for continuity between each and every ATFP motor connector terminal and body ground. There should be no continuity.
4. If the ATFP motor connector terminal continuity is faulty, replace the ATFP.