Pump Diagnosis Test

Tool Required:
94-00101-A Tech 1 Diagnostic Computer

1. Connect 94-00101-A to vehicle.
2. Perform the "Total Pump Run Time" test. If the pump run time from 0 psi until "OK" pressure is less than 10 seconds or greater than 30 seconds, perform test (I) "Pump Motor Operational Diagnosis".
3. If the total pump run time exceeds 60 seconds, make sure the pump is running (the relay may be closed but the pump motor not running). With the engine off but the ignition on, listen carefully for the pump motor. If the pump is not running, refer to "Diagnostic Trouble Code A035". A035
4. If the pump run time from "OK" pressure to "OFF" is less than 5 seconds or greater than 20 seconds, perform test (I) "Pump Motor Operational Diagnosis".
5. Perform the "Normal Pump Run Cycle Time" test. If the average pump run time is less than 2 seconds or greater than 10 seconds, perform test (I) "Pump Motor Operational Diagnosis". Also, if any one pump run is less than 2 seconds, perform test (I) "Pump Motor Operational Diagnosis". (I) Pump Motor Operational Diagnosis