DTC Detection Logic

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

With CONSULT-III

DTC DETECTION LOGIC CHART

CONSULT-III name	DTC	DTC detecting condition	Repair order
DRIVER AIRBAG MODULE [OPEN]	B1049	Driver air bag module circuit (DR1) is open (including the spiral cable).	Visually check the wiring harness connection. Replace the harness if it has visible damage. Replace the driver air bag module. Replace the spiral cable. Replace the air bag diagnosis sensor unit. Replace the related harness.
DRIVER AIRBAG MODULE [OPEN]	B1054	Driver air bag module circuit (DR2) is open (including the spiral cable).
DRIVER AIRBAG MODULE [VB-SHORT]	B1050	Driver air bag module circuit (DR1) is shorted to a power supply circuit (including the spiral cable).
DRIVER AIRBAG MODULE [VB-SHORT]	B1055	Driver air bag module circuit (DR2) is shorted to a power supply circuit (including the spiral cable).
DRIVER AIRBAG MODULE [GND-SHORT]	B1051	Driver air bag module circuit (DR1) is shorted to ground (including the spiral cable).
DRIVER AIRBAG MODULE [GND-SHORT]	B1056	Driver air bag module circuit (DR2) is shorted to ground (including the spiral cable).
DRIVER AIRBAG MODULE [SHORT]	B1052	Driver air bag module circuits (DR1) are shorted to each other (including the spiral cable).
DRIVER AIRBAG MODULE [SHORT]	B1057	Driver air bag module circuits (DR2) are shorted to each other (including the spiral cable).

Without CONSULT-III

FLASH PATTERN REFERENCE CHART

<Driver air bag module>
Flash pattern	Repair order
a through d are repeated. d: Two flashes indicate malfunctioning driver air bag module circuits. Courtesy of NISSAN MOTOR CO., U.S.A.	Visually check the wiring harness connection. Replace the harness if it has visible damage. Replace the spiral cable. Replace driver air bag module. Replace the air bag diagnosis sensor unit. Replace the related harness.