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Home >> Nissan-Datsun >> 1997 >> Sentra Base >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> System Tests >> Pump Circuit Check

Pump Circuit Check

Disconnect cruise control actuator pump. Measure resistance between specified pump terminals. See PUMP TEST table. See Fig 1 . Replace pump if resistance is not as specified. If resistance is as specified, check circuits between pump and control module for opens or shorts. See WIRING DIAGRAMS  .

PUMP TEST

Check Between Terminals No. Ohms
1 & 4 About 3
1 & 2 About 65
1 & 3 About 65
Fig 1: Identifying Vacuum Pump Terminals
G97E11266Courtesy of NISSAN MOTOR CO., U.S.A.