Specifications

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 47
DAEWOO M-150 BL2
DTC 18 – Connection Between Driver Firing Circuit and Driver Pretensioner Circuit
Step Action Value(s) Yes No
1
1. Disconnect the negative battery cable.
2. Wait 1 minute for the SDM capacitor to discharge.
3. Examine the wiring and the connector at the
driver side airbag module and the driver
pretensioner module.
Is the connector disconnected?
– Go to Step 2 Go to Step 3
2
1. Reconnect the driver side airbag module and the
driver pretensioner module.
2. Reconnect the negative battery cable.
Is the repair complete?
–
Go to
Diagnostic
System Check
–
3
1. Disconnect the electrical connector for the driver
side airbag module and the driver pretensioner
module.
2. Disconnect the electrical connector at the SDM.
D The shorting bar at the disconnected SDM
connector will create a complete circuit be-
tween the wires from the driver airbag module
and the driver pretensioner module.
3. Connect an ohmmeter to the terminals on the
SDM side of the wiring harness connector for the
driver pretensioner module.
D Refer to ‘‘Diagnostic Illustration 16’’ in this
section.
Does the ohmmeter show the specified value?
≈ 0 W Go to Step 4 Go to Step 6
4
1. Replace the SDM.
2. Reconnect the negative battery cable.
3. Set the scan tool for CODE ERASE.
4. Do the diagnostic system check.
Does the code 18 still show as a current fault?
– Go to Step 5 System OK
5
1. Replace the driver pretensioner module.
2. Reconnect the negative battery cable.
Is the repair complete?
–
Go to
Diagnostic
System Check
–
6
1. Replace the supplemental inflatable restraints
(SIR) wiring harness.
2. Reconnect the negative battery cable.
Is the repair complete?
–
Go to
Diagnostic
System Check
–