8B
DTC B1032: Power Source Voltage Low
Wiring Diagram
1. From main fuse 3. “AIR BAG” fuse 5. Ground for air bag system
2. Ignition switch 4. SDM    
CAUTION:
• Be sure to perform Air Bag Diagnostic System Check before starting diagnosis according to the flow.
• When measurement of resistance or voltage is required in this flow, use a specified digital multimeter (Refer to Special Tool .) along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to Inspection of Intermittents and Poor Connections .
• If there is open circuit in the air bag wire harness, connector or terminal is found damaged, replace the wire harness, connector and terminal as an assembly.
DTC Will Set when
The power source voltage is below specified value for specified time.
Flow Test Description
Step 1: Check if voltage on battery is within normal range.
Step 2: Check “AIR BAG” fuse.
Step 3: Check if voltage applied to SDM is within normal range.
Step 4: Check if DTC B1032 still exists.
Troubleshooting
Step Action YES NO
1
1) Measure voltage on battery.
Is voltage 11 V or more?
Go to Step 2.
Check charging system and repair as necessary referring to Generator Test (Undercharged Battery Check):M13A .
2
1) Ignition switch OFF.
2) Remove and inspect “AIR BAG” fuse.
Is fuse good?
Go to Step 3.
“BLU/RED” wire short to ground.
After repair, replace “AIR BAG” fuse.
3
1) With ignition switch OFF, disconnect SDM connector “G102”.
2) Check proper connection to SDM at “G102-4” terminal.
3) If OK, then ignition switch ON, and then check voltage from “G102-4” terminal on SDM connector to body ground.
Special Tool
(A) : 09932–76010
Is voltage 8 V or more?
Go to Step 4.
Possibly faulty points are as follows. Check each of them and repair as necessary.
Circuit from battery to “G60” connector.
Check charging system and repair as necessary referring to Generator Test (Undercharged Battery Check):M13A .
4
1) With ignition switch OFF, reconnect SDM connector.
With ignition switch ON, does DTC B1032 still exist?
Substitute a known-good SDM and recheck.
Check charging system and repair as necessary referring to Generator Test (Undercharged Battery Check):M13A .
NOTE:
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components, ensure all components are properly mounted.
• Clear DTCs (Refer to DTC Clearance .), if any.
• Repeat Air Bag Diagnostic System Check to confirm that the trouble has been corrected.