Mazda CX-9 Grand Touring 2009 Manual page 34

Disconnect the SAS control module connectors.
(See SAS CONTROL MODULE
REMOVAL/INSTALLATION .)
Disconnect the driver-side side air bag sensor
No.1 connector.
Inspect the wiring harnesses between SAS
control module terminal 20 and driver-side side
air bag sensor No.1 terminal A, SAS control
module terminal 2S and driver-side side air bag
sensor No.1 terminal B for the following:
Short to ground
Short to power supply
Open circuit
Is the wiring harness normal?
INSPECT SAS CONTROL MODULE
Connect the SAS control module connector.
Connect the driver and passenger-side pre-
tensioner seat belt connectors.
Connect the driver-side side air bag sensor No.1
connector.
Connect the driver and passenger-side curtain
air bag module connectors.
3
Connect the driver and passenger-side front seat
connectors.
Connect the passenger-side air bag module
connector.
Connect the clock spring connector.
Connect the negative battery cable.
Turn the ignition switch to the ON position.
Are DTCs B104B, B104E, B1051 and/or U2017
indicated?
DTC B104C, B104F, B1050, U2018
DTC B104C, B104F, B1050, U2018 DETECTION CONDITION AND POSSIBLE CAUSE
B104C Passenger-side side air bag sensor No.1 and other sensor circuits short to power supply
B104F Passenger-side side air bag sensor No.1 (internal circuit abnormal)
DTC
B1050 Passenger-side side air bag sensor No.1 circuit open or short
U2018 Passenger-side side air bag sensor No.1 (communication error)
WARNING:
2008 Mazda CX-9 Grand Touring
2008 RESTRAINTS On-Board Diagnostic (Restraints) - Mazda CX-9
No Replace the air bag wiring harness.
Replace the SAS control module. (See
Yes SAS CONTROL MODULE
REMOVAL/INSTALLATION .)
No DTC troubleshooting completed.