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Daewoo Matiz (2003 year). Manual - part 217

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 49

DTC 19

–

Connection Between Driver 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

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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 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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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Reconnect the driver 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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–

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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Disconnect the electrical connector for the driver

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 driver airbag module
and the passenger pretensioner module.

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 19 still show as a current fault?

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–

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Go to Step 5

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System OK

ÁÁÁÁ

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

–

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 – 50 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)

D1AB302B

DIAGNOSTIC TROUBLE CODE (DTC) 20

CONNECTION BETWEEN PASSENGER FIRING CIRCUIT AND DRIVER

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
passenger airbag and the driver 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 20 Will Set When

Connection between the passenger firing circuit and
the driver pretensioner circuit or SDM internal con-
nection 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 – 51

DTC 20

–

Connection Between Passenger Firing Circuit and Driver 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

passenger side airbag module and the driver
pretensioner module.

Is the connector disconnected?

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to Step 2

ÁÁÁÁÁÁ

Go to Step 3

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Reconnect the passenger side airbag module and

the driver 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

passenger side airbag module and the driver
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 driver pretensioner module.

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 6

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 20 still show as a current fault?

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to Step 5

ÁÁÁÁÁÁ

System OK

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Replace the driver pretensioner 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 – 52 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)

D1AB302B

DIAGNOSTIC TROUBLE CODE (DTC) 21

CONNECTION BETWEEN PASSENGER FIRING 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
passenger airbag and the passenger circuit. The SDM
allows a very small amount of current to flow through the
circuit. The SDM monitors the circuit resistance during
this check.

DTC 21 Will Set When

Connection between the passenger firing circuit and
the passenger pretensioner circuit or SDM internal
connection problem may exist.

Test Description

Content .. 215 216 217 218 ..