Mazda 6 2002, Workshop Manual

Page: 1113 / 1248

ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM]
T–205
T
DTC B1884, B1890
A6E817401046W11
Diagnostic procedure
DTC
B1884 Passenger-side air bag cut-off indicator light system circuit open or short to ground
B1890 Passenger-side air bag cut-off indicator light system circuit short to power supply
DETECTION
CONDITION
Warning
•
Detection conditions are for understanding DTC outline before performing inspection.
Performing inspection with only detection conditions may cause injury due to operating error
or damage the system. When performing inspection, always follow inspection procedure.
•
Malfunction in passenger-side air bag cut-off indicator light circuit
POSSIBLE
CAUSE
•
Open or short circuit in wiring harness between SAS unit and passenger-side air bag cut-off indicator
light
•
Open circuit in wiring harness between METER IG 15 A fuse and passenger-side air bag cut-off
indicator light
•
Passenger-side air bag cut-off indicator light malfunction
•
SAS unit malfunction
STEP INSPECTION ACTION
1
•
Is vehicle equipped with passenger-side air bag
cut-off function? Yes [Present malfunction diagnosis]
Go to next step.
[Past malfunction diagnosis]
Go to Step 4.
No [Present malfunction diagnosis]
Replace SAS unit.
(See
T–124 SAS UNIT REMOVAL/INSTALLATION )
[Past malfunction diagnosis]
Troubleshooting completed.
2 INSPECT OPERATION OF PASSENGER-SIDE
AIR BAG CUT-OFF INDICATOR LIGHT
•
Turn ignition switch to LOCK position and wait
for
more than 1 minute .
•
Turn ignition switch to ON position.
•
Does passenger-side air bag cut-off indicator
light illuminate?
Yes Go to next step.
No Go to Step 6.
3 INSPECT OPERATION OF PASSENGER-SIDE
AIR BAG CUT-OFF INDICATOR LIGHT
•
Without child restraint seat on passenger’s seat,
does passenger-side air bag cut-off indicator
light go off after
approximately 6 seconds ?
Yes Replace SAS unit.
(See
T–124 SAS UNIT REMOVAL/INSTALLATION )
No Go to next step.