Diagnostic Procedure

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Step	Inspection		Action
1	INSPECT CRASH ZONE SENSOR CONNECTOR WARNING: Handling the component parts improperly can accidentally operate (deploy) the air bag module, which may seriously injure you. Read the service warnings/cautions and the Service Information before handling the air bag system components. (See AIR BAG SYSTEM SERVICE WARNINGS .) (See 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 Disconnect the crash zone sensor connector (See CRASH ZONE SENSOR REMOVAL/INSTALLATION .) Inspect the crash zone sensor connector (Corrosion, damage, and disconnected pins) Is there any malfunction of the crash zone sensor connector?	Yes	Replace the crash zone sensor wiring harness.
1		No	Go to the next step.
2	INSPECT WIRING HARNESS BETWEEN SAS CONTROL MODULE AND CRASH ZONE SENSOR Disconnect all SAS control module connectors Inspect the wiring harnesses between SAS control module terminal 2B and crash zone sensor terminal A, SAS control module terminal 2D and crash zone sensor terminal B for the following Short to body ground Open circuit Short circuit between terminals NOTE: Inspect for continuity while shaking the wiring harness between the SAS control module and crash zone sensor Is the wiring harness normal?	Yes	Go to the next step.
2		No	Replace the wiring harness between the SAS control module and the crash zone sensor
3	INSPECT THE WIRING HARNESS BETWEEN THE SAS CONTROL MODULE AND CRASH ZONE SENSOR FOR A SHORT CIRCUIT TO THE POWER SUPPLY Connect the negative battery cable Switch the ignition to ON with SAS control module and crash zone sensor connector disconnected Measure the voltage of SAS control module connector terminals 2B and 2D of SAS control module harness side connector NOTE: Measure the voltage while shaking the wiring harness between the SAS control module and crash zone sensor Is the voltage measured?	Yes	Replace the wiring harness between the SAS control module and the crash zone sensor.
3		No	Replace the crash zone sensor, then go to the next step (See CRASH ZONE SENSOR REMOVAL/INSTALLATION .)
4	PERFORM DTC INSPECTION Switch the ignition to off. Disconnect the negative battery cable and wait for 1 min or more Connect the crash zone sensor connector. Connect the SAS control module connectors. Connect the negative battery cable. Switch the ignition to ON. Clear DTCs using the M-MDS. (See CLEARING DTC .) Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION .) Are DTCs B0094:11, B0094:12, B0094:87 and/or B0094:96 displayed?	Yes	Replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION .)
4		No	DTC troubleshooting completed