Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Main line between HVAC and A-bag circuitLow tire pressure warning lamp blinks
Low Tire Pressure Warning Lamp Flashes When Ignition Switch Is Turned
On
NOTE: If low tire pressure warning lamp flashes as
shown, the system is normal.
Flash Mode A
This mode shows transmitter status is OFF-mode.Carry out
transmitter wake up operation.
DIAGNOSTIC PROCEDURE ...
U1000 Can comm circuit
Description
DTC Logic
DTC DETECTION LOGIC
NOTE:
U1000 can be set if a module harness was disconnected and reconnected, perhaps
during a repair. Confirm
that there are actual CAN diagnostic symptoms and a present DTC by performing
the Self Diagnostic Result
procedure.
Diagnosis Proc ...
B1049 - B1052, B1054 - B1057 driver airbag module
Description
DTC B1049 - B1052, B1054 - B1057 DRIVER AIRBAG MODULE
The driver air bag module is dual stage and wired to the air bag diagnosis
sensor unit through the spiral cable.The air bag diagnosis sensor unit will
monitor for opens and shorts in detected lines to the driver air bag module
...