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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (SRS Airbag Control System) >> System Description >> Diagnosis System (Air Bag) >> On Board Diagnosis Function >> User Mode

User Mode

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

In USER MODE, air bag warning lamp on combination meter blinks when a malfunction is detected and warns the customer (driver).

How to Read Air Bag Warning Lamp 

  1. Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.
  2. Compare the air bag warning lamp blinking pattern with the examples.

Air Bag Warning Lamp Examples 

Air bag warning lamp operation (user mode)

SRS condition

Reference item

GNSSHIA0011E-011Courtesy of NISSAN NORTH AMERICA, INC.
  • No malfunction is detected
  • No further action is necessary

Change to Diagnosis mode is not possible when the system is normal

GNSSHIA0012E-012Courtesy of NISSAN NORTH AMERICA, INC.
  • Air bag diagnosis sensor unit is malfunctioning
  • Each sensor is malfunctioning
  • Each module is malfunctioning
  • Occupant system is malfunctioning

Refer to DIAGNOSIS MODE 

Zero point reset not yet performed

Refer to Special Repair Requirement 

GNSSHIA0013E-013Courtesy of NISSAN NORTH AMERICA, INC.
  • Air bag is deployed
  • Seat belt pre-tensioner is deployed

Refer to For Frontal Collision or For Side and Rollover Collision

  • Air bag diagnosis sensor unit is malfunctioning
  • Air bag power supply circuit is malfunctioning
  • Air bag warning lamp circuit is malfunctioning

Refer to Diagnosis Procedure 

  • Battery voltage is low (less than 9 V)
  • Battery voltage is high (more than 16 V)

Refer to How to Handle Battery

GNSSHIA0014E-014Courtesy of NISSAN NORTH AMERICA, INC.
  • Air bag diagnosis sensor unit is malfunctioning
  • Air bag warning lamp circuit is malfunctioning

Refer to Air Bag Warning Lamp Does Not Turn On 

Occurrence of Intermittent Malfunction 

Air bag warning lamp blinks in user mode when an intermittent malfunction occurs. Air bag warning lamp turns OFF when system returns to normal status.

Battery Low Voltage Detection 

Air bag diagnosis sensor unit warns the driver by turning air bag warning lamp ON when air bag diagnosis sensor unit detects battery low voltage. Air bag warning lamp turns ON when a voltage value at which air bag diagnosis sensor unit cannot operate normally (9 V or less) is detected. After starting to turn ON, air bag warning lamp turns OFF when air bag diagnosis sensor unit detects the normal value of battery voltage.

The mode cannot be switched to diagnosis mode by ignition switch while air bag warning lamp turns ON due to this cause.

Battery High Voltage Detection 

Air bag diagnosis sensor unit warns the driver by turning air bag warning lamp ON when air bag diagnosis sensor unit detects battery low voltage. Air bag warning lamp turns ON when a voltage value at which air bag diagnosis sensor unit cannot operate normally (16 V or more) is detected. After starting to turn ON, air bag warning lamp turns OFF when air bag diagnosis sensor unit detects the normal value of battery voltage.

The mode cannot be switched to diagnosis mode by ignition switch while air bag warning lamp turns ON due to this cause.