Oil Pressure Warning Lamp Stays Off (Ignition Switch ON)

CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer to "AUTO ACTIVE TEST ".

Does oil pressure warning lamp blink?

YES : GO TO 2.

NO : GO TO 5.
CHECK IPDM E/R INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R harness connector E9 terminal 57 and ground.
  57 - Ground : Approx. 0 V
OK or NG

OK : Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".

NG : GO TO 3.

Fig 1: Identifying Voltage Between IPDM E/R Harness Connector E9 Terminal 57 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Check oil pressure switch. Refer to "OIL PRESSURE SWITCH ".
OK or NG

OK : GO TO 4.

NG : Replace oil pressure switch.
CHECK OIL PRESSURE SWITCH CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector E9 terminal 57 and oil pressure switch harness connector F1 terminal 1.
  57 - 1 : Continuity should exist.
OK or NG

OK : Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".

NG : Repair harness or connector.

Fig 2: Identifying Continuity Between IPDM E/R Harness Connector E9 Terminal 57 And Oil Pressure Switch Harness Connector
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK UNIFIED METER AND A/C AMP. (CONSULT-II)
Perform self-diagnosis of unified meter and A/C amp. Refer to "CONSULT-II Function (METER A/C AMP) ".

Self-diagnosis results
1. No malfunction detected : GO TO 6.
2. Malfunction detected : Check applicable parts, and repair or replace corresponding parts.
CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select "METER A/C AMP" on CONSULT-II.
2. 2 Operate ignition switch with "OIL W/L" of "DATA MONITOR" and check operation status.
  "OIL W/L"
  
  When ignition switch is in ON position (Engine stopped) : ON
  
  When engine running : OFF
OK or NG

OK : Replace combination meter.

NG : GO TO 7.

Fig 3: Identifying Unified Meter And A/C Amp
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK BCM INPUT SIGNAL
1. Select "BCM" on CONSULT-II.
2. Select "DATA MONITOR" of "SIGNAL BUFFER".
3. Operate ignition switch with "OIL PRESS SW" of "DATA MONITOR" and check operate status.
  "OIL PRESS SW"
  
  When ignition switch is in ON position (Engine stopped) : ON
  
  When engine running : OFF
OK or NG

OK : Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".

NG : Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".

Fig 4: Identifying Oil Press
Courtesy of NISSAN MOTOR CO., U.S.A.