2002 MAZDA 6 battery

AIR BAG SYSTEM
T–33
T
•A live (undeployed) air bag module placed
face down on a surface is dangerous. If the air
bag module deploys, the motion of the
module can cause serious injury. Always face
the front surface up to reduce the motion of
the module in case it accidentally deploys.
Side Air Bag Module Handling
•When the side air bag module deploys due to a collision, the interior of the seat back (pad, frame, etc.)
may become damaged. If the seat back is reused and the side air bag module does not deploy properly,
a serious accident may result. When the side air bag module deploys, always replace both the side air
bag module and the seat back (pad, frame, trim) with new parts. After service, confirm that the seat
operates normally and that the harness is positioned properly.
SAS Unit Handling
•Disconnecting the SAS unit connector or removing the SAS unit with the ignition switch at ON position
can cause the air bag modules to deploy, which may seriously injure you. Before disconnecting the
SAS unit connector or removing the SAS unit, turn the ignition switch to LOCK position, then
disconnect the negative battery cable and wait for more than 1 minute to allow the backup power
supply of the SAS unit to deplete its stored power.
•Connecting the SAS unit connector without firmly installing the SAS unit to the vehicle is dangerous.
The crash sensor inside the control module may send an electrical signal to the air bag modules. This
will deploy the air bag modules, which may result in serious injury. Therefore, before connecting the
connector, firmly mount the control module to the vehicle.
•For vehicles with a single point sensor, once an air bag module is deployed due to an accident or other
causes, the SAS unit must be replaced with a new one even if the used one does not have any external
signs of damage. The used SAS unit may have been damaged internally which may cause improper
operation, resulting in major injuries or even death. The used single point SAS unit cannot be
bench-checked or self-checked.
Crash Zone Sensor Handling
•Disconnecting the crash zone sensor connector or removing the crash zone sensor with the ignition
switch at ON position can cause the crash zone sensor to operate and the air bag modules and pre-
tensioner seat belts to deploy, which may seriously injure you. Before disconnecting the crash zone
sensor connector or removing the crash zone sensor, always turn the ignition switch to LOCK position,
then disconnect the negative battery cable and wait for more than 1 minute to allow the backup power
supply of the SAS control module to deplete its stored power.
•If the crash zone sensor is subjected to shock or the sensor is disassembled, the air bag modules and
pre-tensioner seat belts may operate (deploy) suddenly and cause injury, or it may fail to operate
normally and cause a serious accident. Do not subject the crash zone sensor to shock or disassemble
the sensor.
•Because a sensor is built into the crash zone sensor, when the air bag modules and pre-tensioner seat
belts operates (deploys), there may be a problem, such as an internal malfunction, even if there is not
any external damage or deformation. If the crash zone sensor is reused, the air bag modules and pre-
tensioner seat belts may fail to operate normally and cause a serious injury. Always replace the crash
zone sensor with a new part. The crash zone sensor cannot be bench-checked or self-checked.
A6E8130W021

T–34
AIR BAG SYSTEM
Side Air Bag Sensor Handling
•Disconnecting the side air bag sensor connector or removing the side air bag sensor with the ignition
switch at ON position can cause the side air bag sensor to operate and the side air bag module to
deploy, which may seriously injure you. Before disconnecting the side air bag sensor connector or
removing the side air bag sensor, always turn the ignition switch to LOCK position, then disconnect the
negative battery cable and wait for more than 1 minute to allow the backup power supply of the SAS
control module to deplete its stored power.
•If the side air bag sensor is subjected to shock or the sensor is disassembled, the side air bag module
may operate (deploy) suddenly and cause injury, or it may fail to operate normally and cause a serious
accident. Do not subject the side air bag sensor to shock or disassemble the sensor.
•Because a sensor is built into the side air bag sensor, when the side air bag module operates (deploys),
there may be a problem, such as an internal malfunction, even if there is not any external damage or
deformation. If the side air bag sensor is reused, the side air bag module may fail to operate normally
and cause a serious injury. Always replace the side air bag sensor with a new part. The side air bag
sensor cannot be bench-checked or self-checked.
Pre-tensioner Seat Belt Inspection
•Inspecting a pre-tensioner seat belt using an
ohmmeter can deploy the pre-tensioner seat
belt, which can cause serious injury. Do not
use an ohmmeter to inspect the pre-tensioner
seat belt. Always use the on-board diagnostic
to diagnose the pre-tensioner seat belt for
malfunctions.
Component Handling
•Oil, grease, water, etc on components may cause the air bag modules and pre-tensioner seat belts to
fall to deploy in an accident, which may cause serious injury. Do not allow oil, grease, water, etc., on
components.
•Inserting a screwdriver, etc., into the
connector of an air bag module or a pre-
tensioner seat belt may damage the connector
and cause the air bag module or the pre-
tensioner seat belt to deploy improperly,
which may cause serious injury. Do not insert
any foreign objects into the connector.
Component Reuse
•Even if an air bag module or a pre-tensioner seat belt does not deploy in a collision and does not have
any external signs of damage, it may have been damaged internally, which may cause improper
operation. Improper operation may cause serious injury. Always self-check the undamaged air bag
module or pre-tensioner seat belt to determine whether it can be reused.
End Of Sie
A6E8130W025
A6E8130W023

AIR BAG SYSTEM
T–35
T
CURTAIN AIR BAG MODULE REMOVAL/INSTALLATIONA6E813000171201
Warning
•Handling the air bag module improperly can accidentally deploy the air bag module, which may
seriously injure you. Read AIR BAG SYSTEM SERVICE WARNINGS before handling the air bag
module. (See T–32 SERVICE WARNINGS.)
1. Turn the ignition switch to LOCK position.
2. Disconnect the negative battery cable and wait for more than 1 minute.
3. Remove the headliner.
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.
6. Turn the ignition switch to ON position.
7. Verify that the air bag system warning light
illuminates for approximately 6 seconds and
then goes off.
•If the air bag system warning light does not
operate in the manner described above, there
are malfunctions in the system. Inspect the system using the on-board diagnostic.
Connector Removal Note
1. Using a flathead screwdriver, pry out the
connector's stopper plate.
2. Disconnect the connector.
End Of SieAIR BAG MODULE AND PRE-TENSIONER SEAT BELT DEPLOYMENT PROCEDURESA6E813057000201
Warning
•A live (undeployed) air bag module and pre-tensioner seat belt may accidentally deploy when it is
disposed of and cause serious injury. Do not dispose of a live (undeployed) air bag module and
pre-tensioner seat belt. If the SSTs (Deployment tool and Adapter harness) are not available,
consult the nearest Mazda representative for assistance.
Caution
•Deploying the air bag modules and pre-tensioner seat belts inside the vehicle may cause damage
to the vehicle interior. When the vehicle is not to be scrapped, always deploy the air bag modules
and pre-tensioner seat belts outside the vehicle.
•When the vehicle is to be scrapped, deploy the air bag modules and pre-tensioner seat belts inside the vehicle.
(See T–36 Deployment Procedure for Inside of Vehicle (Only When Vehicle Is To Be Scrapped).)
•When the vehicle is not to be scrapped, deploy the air bag modules and pre-tensioner seat belts outside the
vehicle. (See T–36 Deployment Procedure for Outside of Vehicle.)
Note
•When disposing of deployed air bag module and pre-tensioner seat belt, refer to the disposal procedure.
•The deployment procedures are the same as those of the current 4SD and 5HB models, except for the
curtain air bag module.
1 Connector
(See T–35 Connector Removal Note)
2Bolt
3 Curtain air bag module3
1
2
N·m {kgf·cm, in·lbf} 7.9—11.7
{80—120, 70—104}
A6E81301126
A6E8130W002

T–36
AIR BAG SYSTEM
Deployment Procedure for Inside of Vehicle (Only When Vehicle Is To Be Scrapped)
1. Inspect the SST (Deployment tool).
2. Move the vehicle to an open space, away from strong winds, and close all the doors and windows.
3. Turn the ignition switch to LOCK position.
4. Disconnect the negative battery cable and wait for more than 1 minute.
5. Follow the appropriate procedure for deploying the driver-side air bag module, passenger-side air bag module,
side air bag module, curtain air bag module, or pre-tensioner seat belt.
Curtain air bag module (WGN)
1. Remove the headliner.
2. Disconnect the curtain air bag module connector.
3. Connect the SST (Adapter harness) to the curtain
air bag module.
4. Connect the SST (Deployment tool) to the SST
(Adapter harness).
5. Connect the red clip of the SST (Deployment tool)
to the positive battery terminal and the black clip
to the negative battery terminal.
6. Verify that the red light on the SST (Deployment
tool) is illuminated.
7. Make sure all persons are standing at least 6 m
{20 ft} from the vehicle.
8. Press the activation switch on the SST
(Deployment tool) to deploy the curtain air bag
module.
Deployment Procedure for Outside of Vehicle
1. Inspect the SST (Deployment tool).
2. Turn the ignition switch to LOCK position.
3. Disconnect the negative battery cable and wait for more than 1 minute.
4. Follow the appropriate procedure for deploying the driver-side air bag module, passenger-side air bag module,
side air bag module, curtain air bag module, or pre-tensioner seat belt.
49 L066 002
CURTAIN
AIR BAG MODULE
CONNECTOR
A6E81301112
49 L066 002
49 H066 002
A6E8130W151
49 H066 002
ACTIVATION
SWITCH
A6E8130W028

T–38
AIR BAG SYSTEM
6. Tie all tires together with wire.
7. Connect the SST (Deployment tool) to the SST
(Adapter harness).
8. Connect the red clip of the SST (Deployment tool)
to the positive battery terminal and the black clip
to the negative battery terminal.
9. Verify that the red light on the SST (Deployment
tool) is illuminated.
10. Make sure all persons are standing at least 6 m
{20 ft} from the vehicle.
11. Press the activation switch on the SST
(Deployment tool) to deploy the curtain air bag
module.
End Of Sie
A6E8130W034
49 H066 002
49 L066 002
A6E8130W155
49 H066 002
ACTIVATION
SWITCH
A6E8130W028

ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]
T–47
T
5INSPECT INSTRUMENT CLUSTER
CONNECTOR
•Disconnect negative battery cable.
•Disconnect instrument cluster connector.
•Are poor connection detection bars of
instrument cluster connector okay?Yes Go to next step.
No Replace wiring harness.
6•Is vehicle equipped with DSC? Yes Go to next step.
No Go to step 8.
7INSPECT WIRING HARNESS BETWEEN DSC
HU/CM AND INSTRUMENT CLUSTER
•Disconnect DSC HU/CM connector.
•Inspect the following wiring harness between
DSC HU/CM and instrument cluster
terminals for short to ground, short power
supply, and open circuit:
—AF—2W (CAN_L)
—AG—2X (CAN_H)
•Is wiring harness okay?Yes Replace instrument cluster, then go to Step 17.
No Replace wiring harness.
8INSPECT WIRING HARNESS BETWEEN ABS
(ABS/TCS) HU/CM AND INSTRUMENT
CLUSTER
•Disconnect ABS (ABS/TCS) HU/CM
connector.
•Inspect the following wiring harness between
ABS (ABS/TCS) HU/CM and instrument
cluster terminals for short to ground, short
power supply, and open circuit:
—R—2W (CAN_L)
—O—2X (CAN_H)
•Is wiring harness okay?Yes Replace instrument cluster, then go to Step 17.
No Replace wiring harness.
9INSPECT ABS (ABS/TCS) HU/CM OR DSC
HU/CM CONNECTOR
•Disconnect negative battery cable.
•Disconnect ABS (ABS/TCS) HU/CM or DSC
HU/CM connector.
•Is the connector for the ABS (ABS/TCS) HU/
CM or DSC HU/CM connected correctly?Yes Go to next step.
No Replace wiring harness.
10•Is vehicle equipped with DSC? Yes Go to next step.
No Go to step 12.
11INSPECT WIRING HARNESS BETWEEN DSC
HU/CM AND INSTRUMENT CLUSTER
•Disconnect DSC HU/CM connector.
•Inspect the following wiring harness between
DSC HU/CM and instrument cluster
terminals for short to ground, short power
supply, and open circuit:
—AF—2W (CAN_L)
—AG—2X (CAN_H)
•Is wiring harness okay?Yes Replace DSC HU/CM, then go to Step 17.
No Replace wiring harness.
12INSPECT WIRING HARNESS BETWEEN ABS
(ABS/TCS) HU/CM AND INSTRUMENT
CLUSTER
•Disconnect ABS (ABS/TCS) HU/CM
connector.
•Inspect the following wiring harness between
ABS (ABS/TCS) HU/CM and instrument
cluster terminals for short to ground, short
power supply, and open circuit:
—R—2W (CAN_L)
—O—2X (CAN_H)
•Is wiring harness okay?Yes Replace ABS (ABS/TCS) HU/CM, then go to Step 17.
No Replace wiring harness.
13INSPECT PCM CONNECTOR
•Disconnect negative battery cable.
•Disconnect TCM connector.
•Is the connector for the TCM connected
correctly?Yes Go to next step.
No Replace wiring harness. STEP INSPECTION ACTION

ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]
T–49
T
22DETERMINING THE LOCATION OF A
MALFUNCTION
•Is the malfunctioning part the wiring harness
C?Yes Go to Step 36.
No Go to next step.
23DETERMINING THE LOCATION OF A
MALFUNCTION
•Is the malfunctioning part the wiring harness
B or the TCM?Yes Go to Step 39.
No Go to next step.
24DETERMINING THE LOCATION OF A
MALFUNCTION
•Is the malfunctioning part the wiring harness
A or the PCM?Yes Go to Step 43.
No Go to next step.
25INSPECT INSTRUMENT CLUSTER
CONNECTOR
•Disconnect negative battery cable.
•Disconnect instrument cluster connector.
•Are poor connection detection bars of
instrument cluster connector okay?Yes Go to next step.
No Replace wiring harness.
26INSPECT WIRING HARNESS BETWEEN
INSTRUMENT CLUSTER AND 4WD
CONTROL MODULE
•Disconnect 4WD control module connector.
•Inspect the following wiring harness between
4WD control module and instrument cluster
terminals for short to ground, short power
supply, and open circuit:
—H—2W (CAN_L)
—G—2X (CAN_H)
•Is wiring harness okay?Yes Replace instrument cluster, then go to Step 45.
No Replace wiring harness.
27INSPECT 4WD CONTROL MODULE
CONNECTOR
•Disconnect negative battery cable.
•Disconnect 4WD control module connector.
•Is the connector for the 4WD control module
connected correctly?Yes Go to next step.
No Replace wiring harness.
28INSPECT WIRING HARNESS BETWEEN 4WD
CONTROL MODULE AND INSTRUMENT
CLUSTER
•Disconnect instrument cluster connector.
•Inspect the following wiring harness between
4WD control module and instrument cluster
terminals for short to ground, short power
supply, and open circuit:
—H—2W (CAN_L)
—G—2X (CAN_H)
•Is wiring harness okay?Yes Replace 4WD control module, then go to Step 45.
No Replace wiring harness.
29•Is vehicle equipped with DSC? Yes Go to next step.
No Go to step 31.
30INSPECT WIRING HARNESS BETWEEN DSC
HU/CM AND 4WD CONTROL MODULE
•Disconnect DSC HU/CM connector.
•Inspect the following wiring harness between
DSC HU/CM and 4WD control module
terminals for short to ground, short power
supply, and open circuit:
—AF—H (CAN_L)
—AG—G (CAN_H)
•Is wiring harness okay?Yes Go to Step 45.
No Replace wiring harness. STEP INSPECTION ACTION

T–50
ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]
31INSPECT WIRING HARNESS BETWEEN ABS
(ABS/TCS) HU/CM AND 4WD CONTROL
MODULE
•Disconnect ABS (ABS/TCS) HU/CM
connector.
•Inspect the following wiring harness between
ABS (ABS/TCS) HU/CM and 4WD control
module terminals for short to ground, short
power supply, and open circuit:
—R—H (CAN_L)
—O—G (CAN_H)
•Is wiring harness okay?Yes Go to Step 45.
No Replace wiring harness.
32INSPECT ABS (ABS/TCS) HU/CM OR DSC
HU/CM CONNECTOR
•Disconnect negative battery cable.
•Disconnect ABS (ABS/TCS) HU/CM or DSC
HU/CM connector.
•Is the connector for the ABS (ABS/TCS) HU/
CM or DSC HU/CM connected correctly?Yes Go to next step.
No Replace wiring harness.
33•Is vehicle equipped with DSC? Yes Go to next step.
No Go to step 35.
34INSPECT WIRING HARNESS BETWEEN DSC
HU/CM AND 4WD CONTROL MODULE
•Disconnect DSC HU/CM connector.
•Inspect the following wiring harness between
DSC HU/CM and 4WD control module
terminals for short to ground, short power
supply, and open circuit:
—AF—H (CAN_L)
—AG—G (CAN_H)
•Is wiring harness okay?Yes Replace DSC HU/CM, then go to Step 45.
No Replace wiring harness.
35INSPECT WIRING HARNESS BETWEEN ABS
(ABS/TCS) HU/CM AND 4WD CONTROL
MODULE
•Disconnect ABS (ABS/TCS) HU/CM
connector.
•Inspect the following wiring harness between
ABS (ABS/TCS) HU/CM and 4WD control
module terminals for short to ground, short
power supply, and open circuit:
—R—H (CAN_L)
—O—G (CAN_H)
•Is wiring harness okay?Yes Replace ABS (ABS/TCS) HU/CM, then go to Step 45.
No Replace wiring harness.
36•Is vehicle equipped with DSC? Yes Go to next step.
No Go to step 38.
37INSPECT WIRING HARNESS BETWEEN TCM
AND DSC HU/CM
•Disconnect TCM connector.
•Inspect the following wiring harness between
TCM and DSC HU/CM terminals for short to
ground, short power supply, and open circuit:
—2J—AF (CAN_L)
—2M—AG (CAN_H)
•Is wiring harness okay?Yes Go to Step 45.
No Replace wiring harness.
38INSPECT WIRING HARNESS BETWEEN TCM
AND ABS (ABS/TCS) HU/CM
•Disconnect TCM connector.
•Inspect the following wiring harness between
TCM and ABS (ABS/TCS) HU/CM terminals
for short to ground, short power supply, and
open circuit:
—2J—R (CAN_L)
—2M—O (CAN_H)
•Is wiring harness okay?Yes Go to Step 45.
No Replace wiring harness. STEP INSPECTION ACTION