Diagnosis Procedure
WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the
Signal Tech II User Guide for additional information.
- Check Intelligent Key relative signal strength
- Confirm vehicle Intelligent Key antenna signal strength
Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".
- CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
- Turn ignition switch OFF.
- Check signal between Intelligent Key unit connector and ground with an oscilloscope.
Connector Item Terminals Condition Signal (V) (Reference value) (+) (-) M164 Intelligent Key unit 13 Ground Ignition switch is pushed. Fig 1: Checking Signal Between Intelligent Key Unit Connector M164 Terminals And Ground Using OscilloscopeCourtesy of NISSAN NORTH AMERICA, INC.
Is the inspection result normal?
YES: Center console area antenna is OK.
NO: GO TO 2
- CHECK INSIDE KEY ANTENNA
- Disconnect Intelligent Key unit connector and center console area antenna connectors.
- Check continuity between Intelligent Key unit harness connector (A) M164 terminals 13, 14 and center console area antenna harness connector (B) M212 terminals 1, 2.
Intelligent Key unit connector Terminals Center console area antenna connector Terminals Continuity A: M164 13 B: M212 1 Yes 14 2 - Check continuity between Intelligent Key unit harness connector (A) M164 terminals 13, 14 and ground.
Item Connector Terminals Continuity Intelligent Key unit A: M164 13 Ground No 14 Fig 2: Checking Continuity Between Intelligent Key Unit Harness Connector M164 And Center Console Area Antenna Harness Connector M212 TerminalsCourtesy of NISSAN NORTH AMERICA, INC.
Is the inspection result normal?
YES: GO TO 3
NO: Repair or replace harness between Intelligent Key unit and center console area antenna.
- CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
- Replace center console area antenna (New antenna or other antenna).
- Connect Intelligent Key unit connector.
- Check signal between Intelligent Key unit connector and ground with oscilloscope.
Connector Item Terminals Condition Signal (V) (Reference value) (+) (-) M164 Intelligent Key unit 13 Ground Ignition switch is pushed. Fig 3: Checking Signal Between Intelligent Key Unit Connector M164 Terminals And Ground Using OscilloscopeIs the inspection result normal?
YES: Replace center console area antenna.
NO: Replace Intelligent Key unit. Refer to "REMOVAL AND INSTALLATION ".