Diagnosis Procedure
- Vehicle security indicator is built in combination meter.
- NATS (Nissan Anti-Theft System) condition is indicated by blink or illumination of vehicle security indicator.
- CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect combination meter connector.
- Check voltage between combination meter harness connector and ground.
(+)
(-)
Voltage (V)
Combination meter
Connector
Terminal
M24 (Type A)
27
Ground
Battery voltage
M123 (Type B)
45
Is the inspection result normal?
YES
GO TO 2.
NO
Check 10 A fuse [No. 8, located in the fuse block (J/B)].
NO
Check harness for open or short between combination meter and fuse.
- CHECK SECURITY INDICATOR LAMP SIGNAL
- Connect combination meter connector.
- Disconnect BCM connector.
- Check voltage between BCM harness connector and ground.
(+)
(-)
Voltage (V)
BCM
Connector
Terminal
M21
23
Ground
Battery voltage
Is the inspection result normal?
YES
Replace BCM. Refer to Removal and Installation .
NO
GO TO 3.
- CHECK SECURITY INDICATOR LAMP CIRCUIT
- Disconnect combination meter connector.
- Check continuity between combination meter harness connector and BCM harness connector.
Combination meter
BCM
Continuity
Connector
Terminal
Connector
Terminal
M24 (Type A)
18
M21
23
Yes
M122 (Type B)
7
- Check continuity between combination meter harness connector and ground.
Combination meter
Ground
Continuity
Connector
Terminal
M24 (Type A)
18
No
M122 (Type B)
7
Is the inspection result normal?
YES
Replace combination meter. Refer to Removal and Installation (Type A) or Removal and Installation (Type B).
NO
Repair or replace harness.