AIR BAG SYSTEM 10B-33
DTC B1031 – Power Source Voltage High
DTC B1032 – Power Source Voltage Low
WIRING DIAGRAM
DTC WILL SET WHEN
DTC B1031 :
The power source voltage to SDM is above specified value for specified time.
DTC B1032 :
The power source voltage is below an approx. 8V for specified time.
TABLE TEST DESCRIPTION
DTC B1031 :
STEP 1 : Check if voltage applied to SDM is within normal range.
STEP 2 : Check if DTC B1031 still exists.
DTC B1032 :
STEP 1 : Check if voltage on battery is within normal range.
STEP 2 : Check if voltage applied to SDM is within normal range.
STEP 3 : Check if DTC B1032 still exists.
1. From main fuse 3. “AIR BAG” fuse 5. Ground for air bag system
2. Ignition switch 4. SDM
1
2
GRN
BLU/RED
3
5
BLK
“G66”
G66-32
G66-31
4
+30V+5V
CAUTION:
• Be sure to perform AIR BAG DIAGNOSTIC SYSTEM CHECK before starting diagnosis according to
flow table.
• When measurement of resistance or voltage is required in this table, use a specified digital multim-
eter (refer to SPECIAL TOOL in this section.) along with a correct terminal adapter from special tool
(Connector test adapter kit).
• When a check for proper connection is required, refer to INTERMITTENTS AND POOR CONNEC-
TIONS in this section.
• If there is open circuit in the air bag wire harness (in instrument panel harness), connector or termi-
nal is found damaged, replace the wire harness, connector and terminal as an assembly.
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