Mazda Protege 5. Manual — part 291

ON-BOARD DIAGNOSTIC

08–02–32

*

: Consists of the 2 parts of the female connector that separate the short bar from the terminal when connected

to the male connector.

4

INSPECT WIRING HARNESS BETWEEN
PASSENGER-SIDE SIDE AIR BAG MODULE
AND SAS CONTROL MODULE

•

Turn ignition switch to LOCK position.

•

Disconnect negative battery cable and wait
for more than 1 minute.

•

Remove column cover.

•

Disconnect clock spring connector.

•

Remove glove compartment.

•

Disconnect passenger-side air bag module
connector.

•

Disconnect driver-side side air bag module
connector.

•

Remove B-pillar lower trims.

•

Disconnect driver-and passenger-side pre-
tensioner seat belt connectors.

•

Remove left side side wall.

•

Disconnect all SAS control module
connectors.

•

Inspect following wiring harness between
SAS control module connector and
passenger-side side air bag module
connector terminals (harness side) for short
to ground, short to power suppiy, and open
circuit:
— 1I and A
— 1K and B

•

Are wiring harnesses okay?

Yes

Present malfunction diagnosis:

•

Remove SAS control module.
(See 08–10–12 SAS CONTROL MODULE REMOVAL/
INSTALLATION)

Past malfunction diagnosis:

•

Replace passenger-side side air bag module.
(See 08–10–7 SIDE AIR BAG MODULE REMOVAL/
INSTALLATION)

No

Replace wiring harness.

5

VERIFY THAT SAS CONTROL MODULE
CONNECTOR TERMINAL 2AA IS GROUNDED

Warning

••••

Handling air bag system components
improperly can accidentally deploy air
bag modules and pre-tensioner seat
belts, which may seriously injure you.
Read AIR BAG SYSTEM SERVICE
WARNINGS before handling air bag
system components.
(See 08–10–3 AIR BAG SYSTEM
SERVICE WARNINGS)

•

Turn ignition switch to LOCK position.

•

Disconnect negative battery cable and wait
for more than 1 minute.

•

Remove column cover.

•

Disconnect clock spring connector.

•

Remove glove compartment.

•

Disconnect passenger-side air bag module
connector.

•

Remove B-pillar lower trims.

•

Disconnect driver-and passenger-side pre-
tensioner seat belt connectors.

•

Remove left side side wall.

•

Disconnect all SAS control module
connectors.

•

Disconnect driver-side side air bag sensor
connector.

•

Inspect wiring harness between terminal
2AA of SAS control module connector and
ground for following.
— Short to power supply
— Open circuit

•

Is wiring harnesses okay?

Yes

Present malfunction diagnosis:

•

Replace SAS control module.
(See 08–10–12 SAS CONTROL MODULE REMOVAL/
INSTALLATION)

Past malfunction diagnosis:

•

Complete inspection by DTC.

No

Replace wiring harness.

STEP

INSPECTION

ACTION

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ON-BOARD DIAGNOSTIC

08–02–33

08–02

End Of Sie

DTC 91

A3U080201046W17

Diagnostic procedure

DTC 91

Air bag system warning light system

DETECTION

CONDITION

Warning

••••

Detection conditions are for understanding DTC outline before performing inspection.
Performing inspection with only detection conditions may cause injury due to operating error
or damage the system. When performing inspection, always follow diagnostic procedure.

•

Malfunction in air bag system warning light circuit.

POSSIBLE

CAUSE

•

Air bag system warning light bulb malfunction.

•

METER 10 A fuse malfunction.

•

Instrument cluster malfunction.

•

Malfunction of connectors between instrument cluster and SAS control module.

•

Open or short circuit in wiring harness between METER 10 A fuse and instrument cluster.

•

Open or short circuit in wiring harness between instrument cluster and SAS control module.

•

SAS control module malfunction.

STEP

INSPECTION

ACTION

1

•

Is this present malfunction diagnosis?

Yes

Replace SAS control module.
(See 08–10–12 SAS CONTROL MODULE REMOVAL/
INSTALLATION)

No

Go to next step.

2

INSPECT METER 10 A FUSE

•

Turn ignition switch to LOCK position.

•

Disconnect negative battery cable.

•

Remove METER 10 A fuse.

•

Is fuse okay?

Yes

Reinstall METER 10 A fuse, then go to next step.

No

Replace METER 10 A fuse.

3

INSPECT AIR BAG SYSTEM WARNING
LIGHT BULB

•

Remove instrument cluster.
(See 09–22–3 INSTRUMENT CLUSTER
REMOVAL/INSTALLATION)

•

Remove air bag system warning light bulb.

•

Is bulb okay?

Yes

Reinstall air bag system warning light bulb, then go to next
step.

No

Replace air bag system warning light bulb.

4

INSPECT INSTRUMENT CLUSTER

•

Is there continuity between instrument
cluster terminals 1J and 1R?

Yes

Go to next step.

No

With tachometer

•

Replace speedometer and tachometer.

Without tachometer

•

Replace speedometer.
(See 09–22–3 INSTRUMENT CLUSTER
DISASSEMBLY/ASSEMBLY)

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ON-BOARD DIAGNOSTIC

08–02–34

End Of Sie

5

INSPECT FOR CONTINUITY BETWEEN
METER 10 A FUSE AND INSTRUMENT
CLUSTER

•

Connect negative battery cable.

•

Turn ignition switch to ON position.

•

Measure voltage at instrument cluster
connector terminal 1J.

•

Is voltage more than 9 V?

Yes

Go to next step.

No

Replace wiring harness.

6

INSPECT WIRING HARNESS BETWEEN
INSTRUMENT CLUSTER AND SAS
CONTROL MODULE

Warning

••••

Handling air bag system components
improperly can accidentally deploy air
bag modules and pre-tensioner seat
belts, which may seriously injure you.
Read AIR BAG SYSTEM SERVICE
WARNINGS before handling air bag
system components.
(See 08–10–3 AIR BAG SYSTEM
SERVICE WARNINGS)

•

Turn ignition switch to LOCK position.

•

Disconnect negative battery cable and wait
for more than 1 minute.

•

Remove column cover.

•

Disconnect clock spring connector.

•

Remove glove compartment.

•

Disconnect passenger-side air bag module
connector.

•

Disconnect driver- and passenger-side side
air bag module connectors. (Vehicles with
side air bag)

•

Remove B-pillar trims.

•

Disconnect driver- and passenger-side pre-
tensioner seat belt connectors.

•

Remove left side side wall.

•

Disconnect all SAS control module
connectors.

•

Inspect wiring harness between instrument
cluster connector terminal 1R and SAS
control module connector terminal 2W for
following.
— Short to ground
— Short to power supply
— Open circuit

•

Is wiring harness okay?

Yes

Go to next step.

No

Replace wiring harness.

7

INSPECT WIRING HARNESS BETWEEN DLC
AND SAS CONTROL MODULE

•

Inspect wiring harness between FAB
terminal of DLC and terminal 2W of SAS
control module connector for following.
— Short to ground
— Short to power supply

•

Is wiring harness okay?

Yes

Complete inspection by DTC.

No

Replace wiring harness.

STEP

INSPECTION

ACTION

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SYMPTOM TROUBLESHOOTING

08–03–1

08–03

08–03

SYMPTOM TROUBLESHOOTING

AIR BAG SYSTEM WIRING DIAGRAM . 08–03–1
FOREWORD . . . . . . . . . . . . . . . . . . . . . . 08–03–2

Flowchart . . . . . . . . . . . . . . . . . . . . . . . 08–03–2

TROUBLESHOOTING INDEX. . . . . . . . . 08–03–4
NO.1 AIR BAG SYSTEM WARNING

LIGHT DOES NOT ILLUMINATE
WHEN IGNITION SWITCH IS
TURNED TO ON POSITION . . . . . . . . . 08–03–4

NO.2 AIR BAG SYSTEM WARNING LIGHT

ILLUMINATES IMMEDIATELY AFTER IGNITION
SWITCH IS TURNED TO ON POSITION AND
REMAINS ILLUMINATED . . . . . . . . . . . 08–03–6

End of Toc

AIR BAG SYSTEM WIRING DIAGRAM

A3U080301046W01

End Of Sie

Z3U0802W001

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