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Test 6: ASCD Pump Circuit Check

  1. Check ASCD Pump

    Turn ignition switch to LOCK position. Disconnect ASCD pump harness connector. Measure resistance between specified ASCD pump connector terminals (pump side). See ASCD PUMP RESISTANCE  table. See Fig 1 . If resistance is as specified, go to next step. If resistance is not as specified, replace ASCD pump.
  2. Circuit Check

    Ensure ignition switch is in LOCK position. Disconnect ASCD pump harness connector. Disconnect ASCD control unit harness connector. Check each circuit for an open or short between ASCD pump and ASCD control unit. See WIRING DIAGRAMS  . Repair as necessary.
ASCD PUMP RESISTANCE

Measure Resistance Between Terminals No. Approximate Ohms
1 & 2 65
1 & 3 65
1 & 4 3
Fig 1: Identifying ASCD Pump Terminals
G96H07104Courtesy of NISSAN MOTOR CO., U.S.A.