Air Bag System: Other Mazda 3 BL

Side Air Bag Module Handling

1. Before removing the side air bag module or disconnecting the side air bag module connector, always turn the ignition switch to the LOCK position, disconnect the negative battery cable, and then wait for 1 min or more to allow the backup power supply of the SAS control module to deplete its stored power.
2. When a side air bag module operates (deploys) due to a collision, the interior of the seat back (pad, frame, trim) may become damaged. If a side air bag does not operate (deploy) normally from a seat back that has been reused, a serious accident may result. After a side air bag has operated (deployed), always replace both the side air bag module and the seat back (pad, frame, trim) with new parts. After servicing, verify that the seat operates normally and that the wiring harness is not caught.

Seat Weight Sensor Handling

1. The passenger-side seat and the seat weight sensor may become deformed or otherwise damaged due to operation (deployment) of the front or side air bag in an accident. This may cause the passenger sensing function to operate improperly and result in a serious accident. Always replace the passenger seat and seat weight sensor with new ones after the front or side air bags have operated (deployed). After servicing, verify that the seat operates normally and that the wiring harness is not caught. If the collision is not hard enough to cause the front or side air bags to operate (deploy), inspect the seat weight sensor and replace it if there is any malfunction.

SAS Control Module Handling

1. Removing the SAS control module or disconnecting the SAS control module connector with the ignition switch at the ON position can activate the sensor in the SAS control module and operate (deploy) the air bags and pre-tensioner seat belts, which may cause serious injury. Before removing the SAS control module or disconnecting the SAS control module connector, always turn the ignition switch to the LOCK position, disconnect the negative battery cable, and then wait for 1 min or more to allow the backup power supply of the SAS control module to deplete its stored power.
2. Connecting the SAS control module connector with the SAS control module not securely fixed to the vehicle is dangerous. The sensor in the SAS control module could send an electrical signal to the air bag modules and pre-tensioner seat belts. This will operate (deploy) the air bags and pre-tensioner seat belts, which may result in serious injury. Therefore, before connecting the connector, securely fix the SAS control module to the vehicle.
3. Because a sensor is built into the SAS control module, once the air bags and pre-tensioner seat belts have operated (deployed) due to a collision or other causes, the SAS control module must be replaced with a new one even if the used one does not have any visible external damage or deformation. The used SAS control module may have been damaged internally, which may cause improper operation. If the SAS control module is reused, the air bags and pre-tensioner seat belts may not operate (deploy) normally, which could result in a serious accident. Always replace the SAS control module with a new one. The SAS control module cannot be bench-checked or self-checked.

Crash Zone Sensor Handling

1. Removing the crash zone sensor or disconnecting the crash zone sensor connector with the ignition switch at the ON position can activate the crash zone sensor and operate (deploy) the air bags and pre-tensioner seat belts, which may cause serious injury. Before removing the crash zone sensor or disconnecting the crash zone sensor connector, always turn the ignition switch to the LOCK position, disconnect the negative battery cable, and then wait for 1 min or more to allow the backup power supply of the SAS control module to deplete its stored power.
2. If the crash zone sensor is subjected to shock or the sensor is disassembled, the air bags and pre-tensioner seat belts may accidentally operate (deploy) and cause injury, or the system may fail to operate normally and cause a serious accident. Do not subject the crash zone sensor to shock or disassemble the sensor.
3. Because a sensor is built into the crash zone sensor, once the air bags and pre-tensioner seat belts have operated (deployed) due to a collision or other causes, the crash zone sensor must be replaced with a new one even if the used one does not have any visible external damage or deformation. If the crash zone sensor is reused, the air bags and pre-tensioner seat belts may not operate (deploy) normally, which could result in a serious accident. Always replace the crash zone sensor with a new one. The crash zone sensor cannot be bench-checked or self-checked.

Side Air Bag Sensor Handling

1. Removing the side air bag sensor or disconnecting the side air bag sensor connector with the ignition switch at the ON position can activate the side air bag sensor and operate (deploy) the side air bag, which may cause serious injury. Before removing the side air bag sensor or disconnecting the side air bag sensor connector, always turn the ignition switch to the LOCK position, disconnect the negative battery cable, and then wait for 1 min or more to allow the backup power supply of the SAS control module to deplete its stored power.
2. If the side air bag sensor is subjected to shock or the sensor is disassembled, the side air bag may accidentally operate (deploy) and cause injury, or the system may fail to operate normally and cause a serious accident. Do not subject the side air bag sensor to shock or disassemble the sensor.
3. Because a sensor is built into the side air bag sensor, once the air bag has operated (deployed) due to a collision or other causes, the side air bag sensor must be replaced with a new one even if the used one does not have any visible external damage or deformation. If the side air bag sensor is reused, the side air bag may not operate (deploy) normally, which could result in a serious accident. Always replace the side air bag sensor with a new one. The side air bag sensor cannot be bench-checked or self-checked.

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1. Inspecting a pre-tensioner seat belt using a tester can operate (deploy) the pre-tensioner seat belt, which may cause serious injury. Do not use a tester to inspect a pre-tensioner seat belt. Always use the on-board diagnostic function to diagnose the pre-tensioner seat belt for malfunctions.

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1. Disassembling the air bag system components could cause it to not operate (deploy) normally. Never disassemble any air bag system components.

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1. Oil, grease, or water on the air bag modules may cause the air bags and pre-tensioner seat belts to fail to operate (deploy) in an accident. Never allow oil, grease, or water to get on the air bag modules or pre-tensioner seat belts.
2. Inserting a screwdriver or similar object 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 operate (deploy) improperly, which may cause serious injury. Never insert any foreign objects into the air bag module or seat belt connectors.

1. The seat weight sensor has a built-in strain gauge which may operate improperly if the sensor is dropped by itself or when installed to the seat. If it is dropped, replace the seat weight sensor with a new one.
2. Oil, grease, or water on the seat weight sensor may cause the system to operate (deploy) improperly. Never allow oil, grease, or water to get on the seat weight sensor.
3. Foreign material in the seat weight sensor components may cause the system to operate (deploy) improperly. Always make sure that no foreign material can get into the seat weight sensor.
4. Disassembling the seat weight sensor, or tightening any of the nuts and bolts installed to the sensor body may cause it to operate (deploy) improperly. Never disassemble the seat weight sensor or tighten any of the nuts or bolts installed to the body of the sensor.

Air Bag Module, Pre-tensioner Seat Belt Reuse

1. Even if an air bag module or a pre-tensioner seat belt does not operate (deploy) in a collision and does not have any external signs of damage, it may have been damaged internally, which may cause improper operation. Before reusing a live (undeployed) air bag module and the pre-tensioner seat belts, always use the on-board diagnostic to diagnose the air bag module and the pre-tensioner seat belts to verify that they have no malfunction.

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1. Incorrectly repairing an air bag wiring harness can accidentally operate (deploy) the air bag module and pre-tensioner seat belts. If a problem is found in the air bag wiring harness, always replace the wiring harness with a new one.

AIR BAG MODULE AND PRE-TENSIONER SEAT BELT DEPLOYMENT PROCEDURES

1. If the vehicle is to be scrapped, or when disposing of any air bag modules or pre-tensioner seat belts, operate (deploy) them inside the vehicle by following the deployment procedure below and using the SST (Deployment tool).
2. When disposing of a operated (deployed) air bag module and pre-tensioner seat belt, refer to " «AIR BAG MODULE AND PRE-TENSIONER SEAT BELT DISPOSAL PROCEDURES»(ref-345267-S20246837602009102000000) ".

Deployment Procedure for Inside of Vehicle

1. Inspect the SST (Deployment tool). (See «INSPECTION OF SST (DEPLOYMENT TOOL)»(ref-345267-S39625047352009102000000) ).
2. Move the vehicle to an open space, away from strong winds, and close all of the vehicle doors and windows.
3. Turn the ignition switch to the LOCK position.
4. Disconnect the negative battery cable and wait for 1 min or more.
5. Follow the procedure below for operating (deploying) the applicable air bag module or pre-tensioner seat belt.

Driver-side air bag module

Note. The SSTs , two types of adapter harnesses (for inflators No.1 and No.2) and two deployment tools are to be used to operate (deploy) the driver-side air bag module.

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1. Remove the driver-side air bag module. (See «DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION»(ref-345267-S05911320512009102000000) ).
2. Connect the SSTs (Adapter harness) to the driver-side air bag module as shown in the figure.
3. Install the driver-side air bag module. (See «DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION»(ref-345267-S05911320512009102000000) ).
4. Connect the SSTs (Deployment tool) to the SSTs (Adapter harness).
5. Connect both SSTs (Deployment tool) to the battery. Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal.
6. Verify that the red lamp on both SSTs (Deployment tool) is illuminated.
7. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
8. Press the activation switch on the SST (Deployment tool) connected with 49 L066 002 (a yellow connector) of the SST (Adapter harness), and after 3 s , press the activation switch on the other SST (Deployment tool) to operate (deploy) the air bag module (both inflators). WARNING: Verify that air bag module operation (explosive) sound occurs twice. If no operation (explosive) sound was heard or a single operation (explosive) sound was heard, both inflators would not have operated (deployed) properly. This may cause serious injury because the air bag module may operate (deploy) accidentally. If the two operation (explosive) sounds are not heard, perform Step 8 again. In case that the two operation (explosive) sounds in total are not verified even though Step 8 is performed again, leave the air bag module alone for 30 min or more before getting near it again. The air bag module is very hot immediately after it is operated (deployed). You can get burned. Do not touch the air bag module for at least 15 min after deployment.
9. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

Passenger-side air bag module

Note. The SSTs , two types of adapter harnesses (for inflators No.1 and No.2) and two deployment tools are to be used to operate (deploy) the passenger-side air bag module.

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1. Remove the glove compartment. (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-345251-S25078258972009102000000) .)
2. Disconnect the passenger-side air bag module connector.
3. Connect the SSTs (Adapter harness) to the passenger-side air bag module as shown in the figure.
4. Connect the SSTs (Deployment tool) to the SSTs (Adapter harness).
5. Connect both SSTs (Deployment tool) to the battery. Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal.
6. Verify that the red lamp on both SSTs (Deployment tool) is illuminated.
7. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
8. Press the activation switch on the SST (Deployment tool) connected with 49 L066 002 (a yellow connector) of the SST (Adapter harness), and after 3 s , press the activation switch on the other SST (Deployment tool) to operate (deploy) the air bag module (both inflators). WARNING: Verify that air bag module operation (explosive) sound occurs twice. If no operation (explosive) sound was heard or a single operation (explosive) sound was heard, both inflators would not have operated (deployed) properly. This may cause serious injury because the air bag module may operate (deploy) accidentally. If the two operation (explosive) sounds are not heard, perform Step 8 again. In case that the two operation (explosive) sounds in total are not verified even though Step 8 is performed again, leave the air bag module alone for 30 min or more before getting near it again. The air bag module is very hot immediately after it is operated (deployed). You can be burned. Do not touch the air bag module for at least 15 min after deployment.
9. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

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1. Disconnect the front seat connector.
2. Connect the SST (Adapter harness) to the side air bag module as shown in the figure.
3. Connect the SST (Deployment tool) to the SST (Adapter harness).
4. Connect the SST (Deployment tool) to the battery. Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal.
5. Verify that the red lamp on the SST (Deployment tool) is illuminated.
6. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
7. Press the activation switch on the SST (Deployment tool) to operate (deploy) the side air bag module. WARNING: The air bag module is very hot immediately after it is operated (deployed). You can be burned. Do not touch the air bag module for at least 15 min after deployment.
8. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

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1. Remove the C-pillar trim. (4 door) (See «C-PILLAR TRIM REMOVAL/INSTALLATION»(ref-345251-S18929710872009102000000) .)
2. Partially peel back the headliner. (5 door)
3. Disconnect the curtain air bag module connector.
4. Connect the SST (Adapter harness) to the curtain air bag module as shown in the figure.
5. Connect the SST (Deployment tool) to the SST (Adapter harness).
6. Connect the SST (Deployment tool) to the battery. Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal.
7. Verify that the red lamp on the SST (Deployment tool) is illuminated.
8. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
9. Press the activation switch on the SST (Deployment tool) to operate (deploy) the curtain air bag module. WARNING: The air bag module is very hot immediately after it is operated (deployed). You can be burned. Do not touch the air bag module for at least 15 min after deployment.
10. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

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1. Remove the B-pillar lower trim. (See «B-PILLAR LOWER TRIM REMOVAL/INSTALLATION»(ref-345251-S05968899652009102000000) .)
2. Disconnect the pre-tensioner seat belt connector.
3. Connect the SST (Adapter harness) to the pre-tensioner seat belt module as shown in the figure.
4. Connect the SST (Deployment tool) to the SST (Adapter harness).
5. Connect the SST (Deployment tool) to the battery. Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal.
6. Verify that the red lamp on the SST (Deployment tool) is illuminated.
7. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
8. Press the activation switch on the SST (Deployment tool) to operate (deploy) the pre-tensioner seat belt. WARNING: The pre-tensioner seat belt is very hot immediately after it is operated (deployed). You can be burned. Do not touch the pre-tensioner seat belt for at least 15 min after deployment.
9. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

Deployment Procedure for Outside of Vehicle

1. Inspect the SST (Deployment tool). (See «INSPECTION OF SST (DEPLOYMENT TOOL)»(ref-345267-S39625047352009102000000) ).
2. Turn the ignition switch to the LOCK position.
3. Disconnect the negative battery cable and wait for 1 min or more.
4. Follow the procedure below for operating (deploying) the applicable air bag module or pre-tensioner seat belt.

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1. Remove the driver-side air bag module. (See «DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION»(ref-345267-S05911320512009102000000) ).
2. Connect the SSTs (Adapter harness) to the driver-side air bag module as shown in the figure.
3. Place the driver-side air bag module on the center of the tire wheel with the padded surface facing up. To secure the air bag module to the tire wheel, wrap a wire (cross section 1.25 mm 2 {0.002 in 2 } or more) through the wheel and the bolt installation holes of the air bag module at least 4 times. WARNING: If the air bag module is not properly installed to the tire wheel, serious injury may occur when the module is operated (deployed). When installing the air bag module to the tire wheel, make sure the padded surface is facing up.
4. Stack three tires without wheels on top of the tire with the driver-side air bag module, and then stack another tire with a wheel on the very top.
5. Secure the tires with wire.
6. Connect the SSTs (Deployment tool) to the SSTs (Adapter harness).
7. Connect both SSTs (Deployment tool) to the battery. Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal.
8. Verify that the red lamp on both SSTs (Deployment tool) is illuminated.
9. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
10. Press the activation switch on the SST (Deployment tool) connected with 49 L066 002 (a yellow connector) of the SST (Adapter harness), and after 3 s, press the activation switch on the other SST (Deployment tool) to operate (deploy) the air bag module (both inflators). WARNING: Verify that air bag module operation (explosive) sound occurs twice. If no operation (explosive) sound was heard or a single operation (explosive) sound was heard, both inflators would not have operated (deployed) properly. This may cause serious injury because the air bag module may operate (deploy) accidentally. If the two operation (explosive) sounds are not heard, perform Step 10 again. In case that the two operation (explosive) sounds in total are not verified even though Step 10 is performed again, leave the air bag module alone for 30 min or more before getting near it again. The air bag module is very hot immediately after it is operated (deployed). You can be burned. Do not touch the air bag module for at least 15 min after deployment.
11. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

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1. Remove the passenger-side air bag module. (See «PASSENGER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION»(ref-345267-S04719570772009102000000) ).
2. Connect the SSTs (Adapter harness) to the passenger-side air bag module as shown in the figure.
3. Place the padded surface of the passenger-side air bag module facing the center of the tire as shown in the figure. To secure the air bag module to the tire wheel, wrap a wire (cross section 1.25 mm 2 {0.002 in 2 } or more) through the tire and the bolt installation holes at least 4 times as shown in the figure. WARNING: If the air bag module is not properly installed to the tire, serious injury may occur when the module is operated (deployed). When installing the air bag module to the tire, make sure the padded surface is facing the center of the tire.
4. Stack the tire with the passenger-side air bag module on top of two tires without wheels. Stack a tire without a wheel on top of the tire with the passenger-side air bag module, and then stack another tire with a wheel on the very top.
5. Secure the tires with wire.
6. Connect the SSTs (Deployment tool) to the SSTs (Adapter harness).
7. Connect both SSTs (Deployment tool) to the battery. Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal.
8. Verify that the red lamp on both SSTs (Deployment tool) is illuminated.
9. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
10. Press the activation switch on the SST (Deployment tool) connected with 49 L066 002 (a yellow connector) of the SST (Adapter harness), and after 3 s , press the activation switch on the other SST (Deployment tool) to operate (deploy) the air bag module (both inflators). WARNING: Verify that air bag module operation (explosive) sound occurs twice. If no operation (explosive) sound was heard or a single operation (explosive) sound was heard, both inflators would not have operated (deployed) properly. This may cause serious injury because the air bag module may operate (deploy) accidentally. If the two operation (explosive) sounds are not heard, perform Step 11 again. In case that the two operation (explosive) sounds in total are not verified even though Step 11 is performed again, leave the air bag module alone for 30 min or more before getting near it again. The air bag module is very hot immediately after it is operated (deployed). You can be burned. Do not touch the air bag module for at least 15 min after deployment.
11. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

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1. Remove the side air bag module. (See «SIDE AIR BAG MODULE REMOVAL/INSTALLATION»(ref-345267-S31060395412009102000000) ).
2. Install the nuts to the side air bag module.
3. Place the padded surface of the side air bag module facing the center of the tire as shown in the figure. To secure the air bag module to the tire wheel, wrap a wire (cross section 1.25 mm 2 {0.002 in 2 } or more) through the tire and around the bolts at least 4 times. WARNING: If the air bag module is not properly installed to the tire, serious injury may occur when the module is operated (deployed). When installing the air bag module to the tire, make sure the padded surface is facing the center of the tire.
4. Connect the SST (Adapter harness) to the side air bag module as shown in the figure.
5. Stack the tire with the side air bag module on top of two tires without wheels. Stack a tire without a wheel on top of the tire with the side air bag module, and then stack another tire with a wheel on the very top.
6. Secure the tires with wire.
7. Connect the SST (Deployment tool) to the SST (Adapter harness).
8. Connect the SST (Deployment tool) to the battery. Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal.
9. Verify that the red lamp on the SST (Deployment tool) is illuminated.
10. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
11. Press the activation switch on the SST (Deployment tool) to operate (deploy) the side air bag module. WARNING: The air bag module is very hot immediately after it is operated (deployed). You can be burned. Do not touch the air bag module for at least 15 min after deployment.
12. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

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1. Remove the curtain air bag module. (See «CURTAIN AIR BAG MODULE REMOVAL/INSTALLATION»(ref-345267-S22695327392009102000000) ).
2. Secure the curtain air bag module in a vise, and cut off the deployment section, as shown in the figure. WARNING: Be sure not to crush the pipe on the side where it is cut. If it is crushed completely, the interior pressure of the pipe will build up and can cause it to explode during air bag module operation (deployment).
3. Connect the SST (Adapter harness) to the curtain air bag module as shown in the figure.
4. Secure the curtain air bag module to the tire, by wrapping a wire (cross section 1.25 mm 2 {0.002 in 2 } or more) through the tire and the bolt installation holes at least 4 times as shown in the figure. WARNING: If the air bag module is not properly installed to the tire, serious injury may occur when the module is operated (deployed). Make sure to install the air bag module securely.
5. Stack the tire with the curtain air bag module on top of two tires without wheels. Stack a tire without a wheel on top of the tire with the curtain air bag module, and then stack another tire with a wheel on the very top.
6. Secure the tires with wire.
7. Connect the SST (Deployment tool) to the SST (Adapter harness).
8. Connect the SST (Deployment toot) to the battery. Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal.
9. Verify that the red lamp on the SST (Deployment tool) is illuminated.
10. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
11. Press the activation switch on the SST (Deployment tool) to operate (deploy) the curtain air bag module. WARNING: The air bag module is very hot immediately after it is operated (deployed). You can be burned. Do not touch the air bag module for at least 15 min after deployment.
12. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

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1. Remove the pre-tensioner seat belt. (See «FRONT SEAT BELT REMOVAL/INSTALLATION»(ref-345252-S37398683842009102000000) .)
2. Connect the SST (Adapter harness) to the pre-tensioner seat belt as shown in the figure.
3. Place the pre-tensioner seat belt on the center of the tire wheel with the padded surface facing up. To secure the pre-tensioner seat belt to the tire wheel, wrap a wire (cross section 1.25mm 2 {0.002 in 2 } or more) through the wheel and the bolt installation holes of the pre-tensioner seat belt at least 4 times. WARNING: If the pre-tensioner seat belt is not properly secured to the tire, serious injury may occur when the pre-tensioner part is deployed. When installing the pre-tensioner seat belt to the tire, make sure the pre-tensioner part is inside the tire.
4. Stack the tire with the pre-tensioner seat belt on top of two tires without wheels. Stack a tire without a wheel on top of the tire with the pre-tensioner seat belt, and then stack another tire with a wheel on the very top.
5. Secure the tires with wire.
6. Connect the SST (Deployment tool) to the SST (Adapter harness).
7. Connect the SST (Deployment tool) to the battery. Connect the power supply red clip to the positive battery terminal, and black clip to the negative battery terminal.
8. Verify that the red lamp on the SST (Deployment tool) is illuminated.
9. Verify that all persons are standing at least 6 m {20 ft} away from the vehicle.
10. Press the activation switch on the SST (Deployment tool) to operate (deploy) the pre-tensioner seat belt. WARNING: The pre-tensioner seat belt is very hot immediately after it is operated (deployed). You can be burned. Do not touch the pre-tensioner seat belt for at least 15 min after deployment.
11. Disconnect the SSTs (Deployment tool) from the SSTs (Adapter harness).

AIR BAG MODULE AND PRE-TENSIONER SEAT BELT DISPOSAL PROCEDURES

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1. Remove the deployed air bag module or pre-tensioner seat belt.
2. Put the air bag module or pre-tensioner seat belt in a plastic bag, seal the bag, and then dispose of it.

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1. Before using the SST (49 H066 002), inspect its operation.

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1. Follow the steps below to inspect the SST (49 H066 002). If not as indicated in the table, replace the SST (49 H066 002) because it has a malfunction. WARNING: Do not use a malfunctioning SST (49 H066 002), otherwise it could cause the air bag module or pre-tensioner seat belt to accidentally operate (deploy). CAUTION: Because the permissible voltage for the SST (49 H066 002) is 12 V, do not connect a 24 V power source because it will damage the SST. Always connect only a 12 V power source. LIGHT CONDITION REFERENCE Step Inspection procedure Light condition Green Red 1 Connect the power supply red clip to the positive battery terminal, and the black clip to the negative battery terminal. On Off 2 Connect connectors A and B. Off On 3 Press the activation switch. On Off