Door Key Cylinder Switch Check

WARNING: This page is about a different car, the 2003 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
With CONSULT-II
- Check door key cylinder switch ("KEY CYL LK SW") in "DATA MONITOR" mode for "POWER DOOR LOCK SYSTEM" with CONSULT-II. Refer to BL-35
  1. "KEY CYL LK-SW" should be "ON" when key inserted in door key cylinder is turned to lock.
  Fig 1: DATA MONITOR Display For Power Door Lock System With CONSULT-II (1 Of 2)
  Courtesy of NISSAN MOTOR CO., U.S.A.
- Check door key cylinder switch ("KEY CYL UN-SW") in "DATA MONITOR" mode with CONSULT-II.
  1. "KEY CYL UN-SW" should be "ON" when key inserted in door key cylinder was turned to unlock.
  Fig 2: DATA MONITOR Display For Power Door Lock System With CONSULT-II (2 Of 2)
  Courtesy of NISSAN MOTOR CO., U.S.A.
Without CONSULT-II

Check voltage between power window main switch (door lock and unlock switch) connector and ground.

Fig 3: Terminal Voltage Table (Key Position)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Checking Voltage Between Power Window Main Switch Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Further inspection is necessary. Refer to symptom chart.

NG: GO TO 2.
CHECK DOOR KEY CYLINDER SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch (door lock and unlock switch) and door key cylinder switch connector.
3. Check continuity between power window main switch (door lock and unlock switch) connector D7 terminal 6, 7 and door key cylinder switch connector D15 terminals 1, 6.
  1. 6 (W) - 1 (W): Continuity should exist.
  2. 7 (SB) - 6 (SB): Continuity should exist.
OK or NG

OK: GO TO 3.

NG: Repair or replace harness between power window main switch and door key cylinder switch.

Fig 5: Checking Door Key Cylinder Switch Circuit (Terminal 6 - 1 And Terminal 7 - 6)
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DOOR KEY CYLINDER SWITCH GROUND
Check continuity between door key cylinder switch connector D15 terminal 5 and ground.
1. 5 (B) - Ground: Continuity should exist.
  
  Fig 6: Checking Door Key Cylinder Switch Ground (Terminal 5 - Ground)
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 4.

NG: Repair or replace harness.
CHECK DOOR KEY CYLINDER SWITCH
Check continuity between door key cylinder switch terminal 1, 6 and 5.

Fig 7: Terminals Continuity Table (Key Position)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 8: Checking Continuity Between Door Key Cylinder Switch Terminal 1, 6 And 5
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Further inspection is necessary. Refer to symptom chart.

NG: Replace door key cylinder switch.