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Daewoo Matiz (2003 year). Manual - part 211

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 25

DTC 06 – Passenger Firing Circuit, Resistance Too Low

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Step

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Action

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Value(s)

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Yes

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1. Disconnect the negative battery cable.
2. Connect an ohmmeter to the terminals of the

wiring harness connector for the passenger
airbag module on the SDM side of the connector.

Refer to ‘‘Diagnostic Illustration 8’’ in this
section.

Does the ohmmeter show the specified value?

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∞

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Go to Step 2

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Go to Step 4

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1. Replace the SDM.
2. Reconnect the negative battery cable.
3. Set the scan tool to CODE ERASE.
4. Do the diagnostic system check.
Does the code 06 still show as a current fault?

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–

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Go to Step 3

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System OK

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1. Replace the passenger airbag module.
2. Reconnect the negative battery cable.
Is the repair complete?

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–

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Go to

Diagnostic

System Check

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1. Replace the supplemental inflatable restraints

(SIR) wiring harness.

2. Reconnect the negative battery cable.
Is the repair complete?

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–

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Go to

Diagnostic

System Check

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8B – 26 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)

D1AB302B

DIAGNOSTIC TROUBLE CODE (DTC) 07

PASSENGER FIRING CIRCUIT, SHORT TO GROUND

Circuit Description

When the ignition switch is turned ON, the sensing and
diagnostic module (SDM) will diagnose any malfunc-
tions within itself.

After passing these tests, the SDM will check the
passenger airbag firing circuit. The SDM allows a very
small amount of current to flow through the circuit. The
SDM monitors the voltage during this check.

DTC 07 Will Set When

The firing circuit is shorted to ground.

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.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 27

DTC 07 Passenger Firing Circuit, Short To Ground

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Step

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Action

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Value(s)

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Yes

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1. Disconnect the negative battery cable.
2. Wait 1 minute for the SDM capacitor to discharge.
3. Visually inspect the supplemental inflatable

restraints (SIR) wiring harness.

Is there any visible damage to the SIR harness?

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Go to Step 2

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Go to Step 3

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1. Replace the SIR wiring harness.
2. Reconnect the negative battery cable.
Is the repair complete?

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–

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Go to

Diagnostic

System Check

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–

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1. Disconnect the electrical connector from the

passenger airbag module.

2. Disconnect the electrical connector at the SDM.

The shorting bar at the disconnected SDM
connector will create a complete circuit be-
tween the wires from the passenger side air-
bag module.

3. Use an ohmmeter to check the continuity

between ground and one of the terminals at the
SDM side of the wiring harness connector for the
passenger side airbag module.

Refer to ‘‘Diagnostic Illustration 9’’ in this
section.

Is the resistance less than the specified value?

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∞

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Go to Step 2

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Go to Step 4

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1. Replace the SDM.
2. Reconnect the negative battery cable.
3. Set the scan tool to CODE ERASE.
4. Do the diagnostic system check.
Does the code 07 still show as a current fault?

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–

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Go to Step 5

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System OK

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1. Replace the passenger side airbag module.
2. Reconnect the negative battery cable.
Is the repair complete?

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–

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Go to

Diagnostic

System Check

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–

8B – 28 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)

D1AB302B

DIAGNOSTIC TROUBLE CODE (DTC) 08

PASSENGER FIRING CIRCUIT, SHORT TO BATTERY VOLTAGE

Circuit Description

When the ignition switch is turned ON, the sensing and
diagnostic module (SDM) will perform tests to diagnose
any malfunctions within itself.

DTC 08 Will Set When

The firing circuit is shorted to the voltage.

Test Description

Caution: Before testing, disconnect the negative
battery cable. Wait 1 minute for the SDM capacitor
to discharge. The capacitor supplies the reserve
power to deploy the airbags, even if the battery is
disconnected. Unintentional deployment of the air-
bags can cause injury.

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