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Daewoo Matiz (2003 year). Manual - part 218

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 53

DTC 21

–

Connection Between Passenger Firing Circuit and Passenger Pretensioner

Circuit

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Step

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

Action

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Value(s)

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Yes

ÁÁÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

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

passenger side airbag module and the passenger
pretensioner module.

Is the connector disconnected?

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to Step 2

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Go to Step 3

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1. Reconnect the passenger side airbag module and

the passenger pretensioner module connector.

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

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to

Diagnostic

System Check

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–

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Disconnect the electrical connector for the

passenger side airbag module and the passenger
pretensioner 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 airbag
module and the passenger pretensioner mod-
ule.

3. Connect an ohmmeter to the terminals on the

SDM side of the wiring harness connector for the
passenger pretensioner module.

Refer to ‘‘Diagnostic Illustration 19’’ in this
section.

Does the ohmmeter show the specified value?

ÁÁÁÁÁ

≈

ÁÁÁÁÁÁÁ

Go to Step 4

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Go to Step 6

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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 21 still show as a current fault?

ÁÁÁÁÁ

–

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Go to Step 5

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System OK

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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

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

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to

Diagnostic

System Check

ÁÁÁÁÁÁ

–

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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Replace the supplemental inflatable restraints

(SIR) wiring harness.

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

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to

Diagnostic

System Check

ÁÁÁÁÁÁ

–

8B – 54 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)

D1AB302B

DIAGNOSTIC TROUBLE CODE (DTC) 22

CONNECTION BETWEEN DRIVER PRETENSIONER CIRCUIT AND PASSENGER

PRETENSIONER CIRCUIT

Open Circuit

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
pretensioner and the passenger pretensioner circuit.
The SDM allows a very small amount of current to flow
through the circuit. The SDM monitors the circuit resist-
ance during this check.

DTC 22 Will Set When

Connection between the driver pretensioner circuit
and the passenger pretensioner circuit or SDM inter-
nal connection problem may exist.

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. If the anti-deployment shorting bar on the
module-side of the connector is not working prop-
erly, the meter’s battery can deploy the airbag and
cause injury.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 55

DTC 22

–

Connection Between Driver Pretensioner Circuit and Passenger Pretensioner

Circuit

ÁÁÁÁ

Step

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

Action

ÁÁÁÁÁ

Value(s)

ÁÁÁÁÁÁÁ

Yes

ÁÁÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

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 pretensioner module and the passenger
pretensioner module.

Is the connector disconnected?

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to Step 2

ÁÁÁÁÁÁ

Go to Step 3

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Reconnect the driver pretensioner module and

the passenger pretensioner module connector.

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

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to

Diagnostic

System Check

ÁÁÁÁÁÁ

–

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Disconnect the electrical connector for the driver

pretensioner module and the passenger
passenger 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 driver pretensioner
module and the passenger pretensioner mod-
ule.

3. Connect an ohmmeter to the terminals on the

SDM side of the wiring harness connector for the
driver pretensioner module.

Refer to ‘‘Diagnostic Illustration 16’’ in this
section.

Does the ohmmeter show the specified value?

ÁÁÁÁÁ

≈

ÁÁÁÁÁÁÁ

Go to Step 4

ÁÁÁÁÁÁ

Go to Step 7

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Disconnect the electrical connector for the driver

pretensioner module and the passenger
passenger 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 driver pretensioner
module and the passenger pretensioner mod-
ule.

3. Connect an ohmmeter to the terminals on the

SDM side of the wiring harness connector for the
passenger pretensioner module.

Refer to ‘‘Diagnostic Illustration 19’’ in this
section.

Does the ohmmeter show the specified value?

ÁÁÁÁÁ

≈

ÁÁÁÁÁÁÁ

Go to Step 5

ÁÁÁÁÁÁ

Go to Step 7

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

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 22 still show as a current fault?

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to Step 6

ÁÁÁÁÁÁ

System OK

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

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

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to

Diagnostic

System Check

ÁÁÁÁÁÁ

–

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Replace the supplemental inflatable restraints

(SIR) wiring harness.

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

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to

Diagnostic

System Check

ÁÁÁÁÁÁ

–

8B – 56 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)

D1AB302B

DIAGNOSTIC TROUBLE CODE (DTC) 23

IGNITION INPUT CIRCUIT, VOLTAGE 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 completing the internal tests, the SDM will check
its voltage supply. If the voltage supply is too high or too
low, the SDM may not receive the proper information
when it attempts to use a known current to test the
airbag module circuits.

DTC 23 Will Set When

The SDM receives voltage higher than a specified
value.

Test Description

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