id080200100500

Self-diagnostic Function

Malfunction detection function

• Detects overall malfunctions in the air bag system-related parts.

Fail-safe function

• If the SAS control module performance/function cannot be maintained due to any cause, the fail-safe function stops air bag system control and flashes the air bag system warning light to prevent the air bags from operating (deploying) accidentally.

Memory function

• Stores malfunctions in the air bag system-related parts detected by the malfunction detection function, and the stored malfunction contents are not cleared even if the ignition switch is turned to the LOCK position or the negative battery cable is disconnection.

Display function

• When the malfunction detection function detects a malfunction, the air bag system warning light illuminates to advise the driver. Using the external tester communication function, DTCs can be output to the DLC-2 via the CAN.

DTC table

DTC				System malfunction location
Mazda Modular Diagnostic System (M-MDS) display	Air bag system warning light
	Flashing pattern		Priority ranking
B1017	59		4	Deployment prohibited because configuration is not set
B1144	45		11	Driver-side side air bag sensor No.2 system internal circuit disabled
B1145				Driver-side side air bag sensor No.2 system communication error
B1146	46		10	Passenger-side side air bag sensor No.2 system internal circuit disabled
B1147				Passenger-side side air bag sensor No.2 system communication error
B1231	13		3	SAS control module activation (deployment) control freeze
B1317	―	Air bag system warning light is illuminated all the time	―	SAS control module power supply voltage increases (16.1 V or more)
B1318	―	Air bag system warning light is illuminated all the time	―	SAS control module power supply voltage decreases (less than 8 V)
B1342	12		2	SAS control module (internal circuit abnormal)
	―	Continuously illuminated	1	SAS control module (DTC 12 detection circuit malfunction)
B1868	―	―	―	Air bag system warning light malfunction
B1877	38		16	Driver-side pre-tensioner seat belt circuit resistance high
B1878				Driver-side pre-tensioner seat belt circuit short to power supply
B1879				Driver-side pre-tensioner seat belt circuit short to body ground
B1881	39		15	Passenger-side pre-tensioner seat belt circuit resistance high
B1882				Passenger-side pre-tensioner seat belt circuit short to power supply
B1883				Passenger-side pre-tensioner seat belt circuit short to body ground
B1885	38		16	Driver-side pre-tensioner seat belt circuit resistance low
B1886	39		15	Passenger-side pre-tensioner seat belt circuit resistance low
B1913	19		14	Driver-side air bag module circuit short to body ground
	21		13	Passenger-side air bag module circuit short to body ground
B1916	19		14	Driver-side air bag module circuit short to power supply
B1925	21		13	Passenger-side air bag module circuit short to power supply
B1932	19		14	Driver-side air bag module circuit resistance high
B1933	21		13	Passenger-side air bag module circuit resistance high
B1934	19		14	Driver-side air bag module circuit resistance low
B1935	21		13	Passenger-side air bag module circuit resistance low
B1992	22		18	Driver-side side air bag module circuit short to power supply
B1993				Driver-side side air bag module circuit short to body ground
B1994				Driver-side side air bag module circuit resistance high
B1995				Driver-side side air bag module circuit resistance low
B1996	23		17	Passenger-side side air bag module circuit short to power supply
B1997				Passenger-side side air bag module circuit short to body ground
B1998				Passenger-side side air bag module circuit resistance high
B1999				Passenger-side side air bag module circuit resistance low
B2296	42		9	Crash zone sensor (communication error, internal circuit abnormal)
B2444	43		8	Driver-side side air bag sensor No.1 (internal circuit abnormal)
B2445	44		7	Passenger-side side air bag sensor No.1 (internal circuit abnormal)
B2477	54		5	Configuration error
B2773	24		20	Driver-side curtain air bag module circuit resistance low
B2774				Driver-side curtain air bag module circuit resistance high
B2775				Driver-side curtain air bag module circuit short to body ground
B2776				Driver-side curtain air bag module circuit short to power supply
B2777	25		19	Passenger-side curtain air bag module circuit resistance low
B2778				Passenger-side curtain air bag module circuit resistance high
B2779				Passenger-side curtain air bag module circuit short to body ground
B2780				Passenger-side curtain air bag module circuit short to power supply
B2867	58		6	Poor connection of any SAS control module connectors
U2017	43		8	Driver-side side air bag sensor No.1 (communication error)
U2018	44		7	Passenger-side side air bag sensor No.1 (communication error)
U0073	14		12	CAN system communication error
U0151				Communication error to SAS control module
U0155				Communication error to instrument cluster

PID/Data Monitoring Function

PID/data monitor table