Daewoo MATIZ Service Manual page 841

8B – 14 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DRIVER FIRING CIRCUIT, RESISTANCE TOO HIGH
Circuit Description
When the ignition switch is turned ON, the sensing and
diagnostic module (SDM) will perform tests to diagnose
any malfunctions within itself.
After passing these tests, the SDM will check the driver
airbag module firing circuit. The SDM allows a very
small amount of current to flow through the driver airbag
module firing circuit. The SDM monitors the circuit re-
sistance during this check.
DTC 01 Will Set When
D The combined resistance of the driver airbag module,
the harness wiring, and the connector contacts is
above a specified value, as with an open circuit.
DIAGNOSTIC TROUBLE CODE (DTC) 01
Open Circuit
Test Description
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: Never measure the resistance of an airbag
module with an ohmmeter. An ohmmeter's battery
can deploy the airbag and cause injury.
Caution: Do not attempt to repair the supplemental
inflatable restraints (SIR) wiring harness. A repair
can create a high-resistance connection which can
keep the airbags from deploying when needed, re-
sulting in injury.
D1AB302B
DAEWOO M-150 BL2