Content .. 214 215 216 217 ..

Daewoo Matiz (2003 year). Manual - part 216

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 45

DTC 16 – Passenger Pretensioner Circuit, Short To Battery Voltage

ÁÁÁÁ

Step

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

Action

ÁÁÁÁÁ

Value(s)

ÁÁÁÁÁÁÁ

Yes

ÁÁÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Disconnect the battery negative cable.
2. Wait 1 minute for the SDM capacitor to discharge.

The capacitor supplies reserve power to deploy
the passenger seat belt pretensioner even if
the battery has been disconnected.

3. Visually inspect the supplemental inflatable

restraints (SIR) wiring harness.

Is there any visible damage to the SIR wiring
harness?

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to Step 2

ÁÁÁÁÁÁ

Go to Step 3

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Replace the SIR wiring harness.
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 seat belt 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 seat belt
pretensioner module.

3. Use a multimeter to check the voltage at one of

the terminals on the SDM side of the SIR wiring
harness connector for the passenger seat belt
pretensioner module.

Refer to ‘‘Diagnostic Illustration 21’’ in this
section.

Is the voltage greater than the specified value?

ÁÁÁÁÁ

0 v

ÁÁÁÁÁÁÁ

Go to Step 2

ÁÁÁÁÁÁ

Go to Step 4

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

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 16 still show as a current fault?

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to Step 5

ÁÁÁÁÁÁ

System OK

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

1. Replace the passenger seat belt pretensioner

module.

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

ÁÁÁÁÁ

–

ÁÁÁÁÁÁÁ

Go to

Diagnostic

System Check

ÁÁÁÁÁÁ

–

8B – 46 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)

D1AB302B

DIAGNOSTIC TROUBLE CODE (DTC) 18

CONNECTION BETWEEN DRIVER 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 driver
airbag and the driver pretensioner circuit. The SDM al-
lows a very small amount of current to flow through the
circuit. The SDM monitors the circuit resistance during
this check.

DTC 18 Will Set When

Connection between the driver firing circuit and the
driver pretensioner circuit or the 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 – 47

DTC 18

–

Connection Between Driver 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

driver 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 driver side airbag module and 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. Disconnect the electrical connector for the driver

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 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.

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 18 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 – 48 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)

D1AB302B

DIAGNOSTIC TROUBLE CODE (DTC) 19

CONNECTION BETWEEN DRIVER 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 driver
airbag and the passenger pretensioner 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 19 Will Set When

Connection between the drive firing circuit and the
passenger pretensioner circuit or SDM internal con-
nection problem may exist.

Test Description

Content .. 214 215 216 217 ..