Power Liftgate Switch System Inspection: Notes

POWER LIFTGATE SWITCH FUNCTION INSPECTION
Check power liftgate switch using switch operation.

OK or NG
1. OK: Power liftgate switch is OK.
2. NG: GO TO 2.
POWER LIFTGATE SWITCH POWER SUPPLY CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Check voltage between power liftgate switch connector M92 terminal 1 and ground.
  1. 1 (L/W) - Ground: Approx. battery voltage
OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace harness.
Fig 1: Checking Voltage Between Power Liftgate Switch Connector M92 Terminal 1 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
POWER LIFTGATE SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While operating the power liftgate switch, check voltage between back door control unit connector B55 terminal 23 and ground.
  
  Fig 2: Back Door Control Unit Terminal 23 And Ground Voltage Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Voltage Between Back Door Control Unit Connector B55 Terminal 23 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Switch is OK.
2. NG: GO TO 4.
POWER LIFTGATE SWITCH CIRCUIT INSPECTION
1. Disconnect power liftgate switch and back door control unit connector.
2. Check continuity between power liftgate switch connector M92 terminal 1 and back door control unit connector B55 terminal 23.
  1. 1 (L/W) - 23 (L/W): Continuity should exist.
OK or NG
1. OK: GO TO 5.
2. NG: Repair or replace harness.
Fig 4: Checking Continuity Between Power Liftgate Switch Connector M92 Terminal 1 And Back Door Control Unit Connector B55 Terminal 23
Courtesy of NISSAN MOTOR CO., U.S.A.
POWER LIFTGATE SWITCH GROUND INSPECTION
Check continuity between power liftgate switch connector terminal 2 and ground.
1. 2 (B) - Ground: Continuity should exist.
OK or NG
1. OK: Replace the power liftgate switch.
2. NG: Repair or replace harness.
Fig 5: Checking Continuity Between Power Liftgate Switch Connector Terminal 2 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.