Mazda CX-7 2007 Workshop Manual page 1245

DTC B2445, U2018
B2445 Passenger-side side air bag sensor No.1 (internal circuit abnormal)
DTC
U2018 Passenger-side side air bag sensor No.1 (communication error)
Warning
• Detection conditions are for understanding the DTC outline before performing an inspection.
Performing an inspection according to only the detection conditions may cause injury due to
an operating error, or damage the system. When performing an inspection, always follow the
DETECTION
inspection procedure.
CONDITION
• Malfunction in the wiring harness between the passenger-side side air bag sensor and SAS control
module
• Malfunction in the passenger-side side air bag sensor circuit
• Open or short circuit in the wiring harness between the passenger-side side air bag sensor and SAS
POSSIBLE control module
• Passenger-side side air bag sensor malfunction
CAUSE
• SAS control module malfunction
SAS CONTROL MODULE WIRING
HARNESS-SIDE CONNECTOR
2Y 2V 2S
2Z 2W 2T
2AA 2X 2U
Diagnostic procedure
STEP
1 INSPECT PASSENGER-SIDE SIDE AIR BAG
SENSOR NO. 1 CONNECTOR
Warning
• Handling the air bag system
components improperly can
accidentally deploy the air bag
modules and pre-tensioner seat belts,
which may seriously injure you. Read
the service warnings and cautions
before handling the air bag system
components.
(See 08-10-3 AIR BAG SYSTEM
SERVICE WARNINGS.)
(See 08-10-5 AIR BAG SYSTEM
SERVICE CAUTIONS.)
• Turn the ignition switch to the LOCK position.
• Disconnect the negative battery cable and
wait for 1 min or more.
• Remove the B-pillar lower trim (passenger-
side).
(See 09-17-16 B-PILLAR LOWER TRIM
REMOVAL/INSTALLATION.)
• Disconnect the passenger-side side air bag
sensor No. 1 connector.
• Is there any malfunction of the passenger-
side side air bag sensor No. 1 connector?
ON-BOARD DIAGNOSTIC
2P 2M 2J 2G 2D 2A
2H 2E 2B
2R 2O 2L 2I 2F 2C
INSPECTION
PASSENGER-SIDE SIDE AIR BAG SENSOR NO.1
WIRING HARNESS-SIDE CONNECTOR
B A
Yes Replace the air bag wiring harness.
No Go to the next step.
id080200802800
ACTION
08-02–43
08-02