A/T Device (Detent Switch) Circuit Inspection

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUNCTION

With CONSULT-II

Check that when the A/T shift lever is in P position, "DETENT SW" on the DATA MONITOR becomes OFF.

A/T DEVICE (DETENT SWITCH) OPERATION REFERENCE

Monitor item [OPERATION or UNIT]		Contents
DETENT SW	"ON/OFF"	The selector lever position "P position (OFF)/other than P position (ON)" judged from the park switch signal is displayed.

Without CONSULT-II

GO TO 2.

OK or NG

OK: A/T device (detent switch) circuit is OK.
NG: GO TO 2.

Fig 1: CONSULT-II - Identifying "DETENT SW" On DATA MONITOR

Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK A/T DEVICE (DETENT SWITCH) HARNESS
1. Turn ignition switch OFF.
2. Disconnect A/T device and driver seat control unit.
3. Check continuity between A/T device connector M203 terminal 6 and driver seat control unit connector P2 terminal 21.
  - 6 (L/R) - 21 (L/R): Continuity should exist.
4. Check continuity between A/T device connector M203 terminal 6 and ground.
  - 6 (L/R) - Ground: Continuity should not exist.
OK or NG
- OK: GO TO 3.
- NG: Repair or replace harness.
Fig 2: Checking Continuity Between A/T Device Connector M203 Terminal 6 And Driver Seat Control Unit Connector P2 Terminal 21
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DETENT SWITCH
Check continuity between A/T device (detent switch) as follows.

Fig 3: A/T Device (Detent Switch) Connector M203 Terminals 5, 6 Continuity Conditions
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Checking Continuity Between A/T Device (Detent Switch) Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: A/T device is OK.
- NG: Replace A/T device.