8B–10 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
SYSTEM CHECK
D1AB301B
Caution: Use only the scan tool to check the airbag
modules and the sensing and diagnostic module
(SDM). Never measure the resistance of an airbag
module with an ohmmeter. An ohmmeter’s battery
can deploy the airbag and cause injury.
Caution: Before testing, disconnect the negative
battery cable. Wait 1 minute for the SDM capacitor
to discharge. The capacitor supplies reserve power
to deploy the airbags, even if the battery is discon-
nected. Unintentional deployment of the airbags
can cause injury.
Caution: Do not attempt to repair the supplemental
inflatable restraints (SIR) wiring harness. An SIR re-
pair can create a high-resistance connection which
can keep the airbags from deploying when needed,
resulting in injury.
Circuit Description
When the ignition switch is turned ON, the SDM is able
to send serial data from the terminal 9 of the SDM to the
terminal J (13) of the assembly line diagnostic link.
Diagnostic System Check
Step
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Action
Value(s)
Yes
No
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1
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1. Turn the ignition ON.
2. Check the warning lamp.
Does the warning lamp turn off after 4 seconds?
ÁÁÁ
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–
ÁÁÁÁÁ
ÁÁÁÁÁ
System OK
ÁÁÁÁ
ÁÁÁÁ
Go to Step 2
ÁÁ
ÁÁ
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2
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
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1. Connect the scan tool cable to the DLC.
2. Connect the scan tool power cable to the cigar
lighter socket.
3. Select the airbag main menu on the scan tool.
4. Select “Fail Code View & Clear “ from the
displayed menu of the diagnostic test codes
(DTC).
Are there any active fault codes?
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
–
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
Go to the DTC
table for the
fault indicated
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
Go to Step 3