The side collision sensor LH circuit consists of the airbag sensor assembly, No. 3 side airbag sensor LH and side airbag pressure sensor LH.
The No. 3 side airbag sensor LH and side airbag pressure sensor LH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if the SRS should be deployed.
These DTCs are stored when a malfunction is detected in the circuit for the side collision sensor LH circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Test Mode / Check Mode |
|---|---|---|---|---|---|
| B1647 | Side Satellite Sensor Bus Lost Communication (LH) | One of the following conditions is met:
·
The airbag sensor assembly detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the circuit for the side satellite sensor bus LH for 2 seconds. ·
A side airbag pressure sensor LH malfunction. ·
A No. 3 side airbag sensor LH malfunction. ·
An airbag sensor assembly malfunction. |
·
Floor wire ·
No. 2 rear door wire ·
Instrument panel wire ·
Front door wire LH ·
Side airbag pressure sensor LH ·
No. 3 side airbag sensor LH ·
Airbag sensor assembly |
Comes on | Not applicable |
| B1648 | Side Satellite Sensor Bus Initialization Error (LH) | One of the following conditions is met:
·
The airbag sensor assembly detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the circuit for the side satellite sensor bus LH for 2 seconds. ·
A side airbag pressure sensor LH malfunction. ·
A No. 3 side airbag sensor LH malfunction. ·
An airbag sensor assembly malfunction. |
·
Floor wire ·
No. 2 rear door wire ·
Instrument panel wire ·
Front door wire LH ·
Side airbag pressure sensor LH ·
No. 3 side airbag sensor LH ·
Airbag sensor assembly |
Comes on | Not applicable |
After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.
When disconnecting and reconnecting the battery
When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.
After replacing the airbag sensor assembly, refer to initialization.
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Check that the connectors are properly connected to the airbag sensor assembly and No. 3 side airbag sensor LH.
| Proceed to |
|---|
| The connectors are properly connected |
| The connectors are not properly connected |
The connectors are properly connected
The connectors are not properly connected
| *1 | No. 3 Side Airbag Sensor LH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Rear Door Wire |
| *4 | Floor Wire |
Disconnect the connectors from the airbag sensor assembly and No. 3 side airbag sensor LH.
Check that the connectors (on the airbag sensor assembly side and No. 3 side airbag sensor LH side) are not damaged.
| Proceed to |
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| The connectors are not deformed or damaged |
| The connectors are deformed or damaged |
The connectors are not deformed or damaged
The connectors are deformed or damaged
| *1 | No. 3 Side Airbag Sensor LH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Rear Door Wire |
| *4 | Floor Wire |
| *5 | Service Wire |
| *a | Front view of wire harness connector
(to No. 3 Side Airbag Sensor LH) |
| *b | Front view of wire harness connector
(to Airbag Sensor Assembly) |
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| T1-4 (BBL+) - Body ground | Ignition switch ON | Below 1 V |
| T1-3 (BBL-) - Body ground | Ignition switch ON | Below 1 V |
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Using a service wire, connect terminals 32 (BBL+) and 31 (BBL-) of connector B.
Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| T1-4 (BBL+) - T1-3 (BBL-) | Always | Below 1 Ω |
Disconnect the service wire from connector B.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| T1-4 (BBL+) - T1-3 (BBL-) | Always | 1 MΩ or higher |
| T1-4 (BBL+) - Body ground | Always | 1 MΩ or higher |
| T1-3 (BBL-) - Body ground | Always | 1 MΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *1 | No. 3 Side Airbag Sensor RH |
| *2 | Airbag Sensor Assembly |
Connect the connector to the airbag sensor assembly.
Interchange the No. 3 side airbag sensor LH with RH and connect the connectors to them.
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch to ON, and wait for at least 60 seconds.
Clear the DTCs stored in memory.
Turn the ignition switch off.
Turn the ignition switch to ON, and wait for at least 60 seconds.
Check for DTCs.
| Proceed to |
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| DTC B1647 or B1648 is output |
| DTC B1642 or B1643 is output |
| DTCs B1642, B1643, B1647 and B1648 are not output |
Codes other than DTC B1642, B1643, B1647 and B1648 may be output at this time, but they are not related to this check.
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Return the No. 3 side airbag sensor LH and RH to their original positions and connect the connectors to them.
DTC B1647 or B1648 is output
DTC B1642 or B1643 is output
DTCs B1642, B1643, B1647 and B1648 are not output
Check that the connector is properly connected to the side airbag pressure sensor LH.
| Proceed to |
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| The connector is properly connected |
| The connector is not properly connected |
The connector is properly connected
The connector is not properly connected
| *1 | Side Airbag Pressure Sensor LH |
| *2 | No. 3 Side Airbag Sensor LH |
| *3 | Front Door Wire LH |
Disconnect the connectors from the No. 3 side airbag sensor LH and side airbag pressure sensor LH.
Check that the connector (on the side airbag pressure sensor LH side) is not damaged.
| Proceed to |
|---|
| The connector is not deformed or damaged |
| The connector is deformed or damaged |
The connector is not deformed or damaged
The connector is deformed or damaged
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
| *1 | Side Airbag Pressure Sensor LH | *2 | No. 3 Side Airbag Sensor LH |
| *3 | Front Door Wire LH | *4 | Instrument Panel Wire |
| *5 | Floor Wire | *6 | No. 2 Rear Door Wire |
| *7 | Service Wire | - | - |
| *a | Front view of wire harness connector
(to Side Airbag Pressure Sensor LH) |
*b | Front view of wire harness connector
(to No. 3 Side Airbag Sensor LH) |
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| R15-2 (BDL+) - Body ground | Ignition switch ON | Below 1 V |
| R15-1 (BDL-) - Body ground | Ignition switch ON | Below 1 V |
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Using a service wire, connect terminals 1 (BDL+) and 2 (BDL-) of connector B.
Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R15-2 (BDL+) - R15-1 (BDL-) | Always | Below 1 Ω |
Disconnect the service wire from connector B.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R15-2 (BDL+) - R15-1 (BDL-) | Always | 1 MΩ or higher |
| R15-2 (BDL+) - Body ground | Always | 1 MΩ or higher |
| R15-1 (BDL-) - Body ground | Always | 1 MΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *1 | Side Airbag Pressure Sensor RH |
| *2 | No. 3 Side Airbag Sensor LH |
Connect the connector to the No. 3 side airbag sensor LH.
Interchange the side airbag pressure sensor LH with RH and connect the connectors to them.
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch to ON, and wait for at least 60 seconds.
Clear the DTCs stored in memory.
Turn the ignition switch off.
Turn the ignition switch to ON, and wait for at least 60 seconds.
Check for DTCs.
| Proceed to |
|---|
| DTC B1647 or B1648 is output |
| DTC B1642 or B1643 is output |
| DTCs B1642, B1643, B1647 and B1648 are not output |
Codes other than DTC B1642, B1643, B1647 and B1648 may be output at this time, but they are not related to this check.
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Return the side airbag pressure sensor RH and LH to their original positions and connect the connectors to them.
DTC B1647 or B1648 is output
DTC B1642 or B1643 is output
DTCs B1642, B1643, B1647 and B1648 are not output
| *1 | Side Airbag Pressure Sensor LH |
| *2 | No. 3 Side Airbag Sensor LH |
| *3 | Floor Wire |
| *4 | No. 2 Rear Door Wire |
Disconnect the No. 2 rear door wire connector from the floor wire.
Check that the connectors (on the No. 2 rear door wire side and floor wire side) are not damaged.
| Proceed to |
|---|
| The connector is not deformed or damaged |
| The connector is deformed or damaged |
The connector is not deformed or damaged
The connector is deformed or damaged
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
| *1 | Side Airbag Pressure Sensor LH | *2 | No. 3 Side Airbag Sensor LH |
| *3 | Floor Wire | *4 | No. 2 Rear Door Wire |
| *5 | Service Wire | - | - |
| *a | Front view of wire harness connector
(to Floor Wire) |
*b | Front view of wire harness connector
(to No. 3 Side Airbag Sensor LH) |
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| TV2-4 (BDL+) - Body ground | Ignition switch ON | Below 1 V |
| TV2-3 (BDL-) - Body ground | Ignition switch ON | Below 1 V |
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Using a service wire, connect terminals 1 (BDL+) and 2 (BDL-) of connector B.
Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| TV2-4 (BDL+) - TV2-3 (BDL-) | Always | Below 1 Ω |
Disconnect the service wire from connector B.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| TV2-4 (BDL+) - TV2-3 (BDL-) | Always | 1 MΩ or higher |
| TV2-4 (BDL+) - Body ground | Always | 1 MΩ or higher |
| TV2-3 (BDL-) - Body ground | Always | 1 MΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *1 | Side Airbag Pressure Sensor LH |
| *2 | No. 3 Side Airbag Sensor LH |
| *3 | Instrument Panel Wire |
| *4 | Floor Wire |
Disconnect the floor wire connector from the instrument panel wire.
Check that the connectors (on the floor wire side and instrument panel wire side) are not damaged.
| Proceed to |
|---|
| The connector is not deformed or damaged |
| The connector is deformed or damaged |
The connector is not deformed or damaged
The connector is deformed or damaged
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
| *1 | Side Airbag Pressure Sensor LH | *2 | No. 3 Side Airbag Sensor LH |
| *3 | Instrument Panel Wire | *4 | Floor Wire |
| *5 | Service Wire | - | - |
| *a | Front view of wire harness connector
(to Instrument Panel Wire) |
*b | Front view of wire harness connector
(to No. 2 Rear Door Wire) |
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| NV1-2 (BDL+) - Body ground | Ignition switch ON | Below 1 V |
| NV1-1 (BDL-) - Body ground | Ignition switch ON | Below 1 V |
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Using a service wire, connect terminals 4 (BDL+) and 3 (BDL-) of connector D.
Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| NV1-2 (BDL+) - NV1-1 (BDL-) | Always | Below 1 Ω |
Disconnect the service wire from connector D.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| NV1-2 (BDL+) - NV1-1 (BDL-) | Always | 1 MΩ or higher |
| NV1-2 (BDL+) - Body ground | Always | 1 MΩ or higher |
| NV1-1 (BDL-) - Body ground | Always | 1 MΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *1 | Side Airbag Pressure Sensor LH |
| *2 | No. 3 Side Airbag Sensor LH |
| *3 | Front Door Wire LH |
| *4 | Instrument Panel Wire |
Disconnect the front door wire LH connector from the instrument panel wire.
Check that the connectors (on the front door wire LH side and instrument panel wire side) are not damaged.
| Proceed to |
|---|
| The connector is not deformed or damaged |
| The connector is deformed or damaged |
The connector is not deformed or damaged
The connector is deformed or damaged
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
| *1 | Side Airbag Pressure Sensor LH | *2 | No. 3 Side Airbag Sensor LH |
| *3 | Front Door Wire LH | *4 | Instrument Panel Wire |
| *5 | Service Wire | - | - |
| *a | Front view of wire harness connector
(to Front Door Wire LH) |
*b | Front view of wire harness connector
(to Floor Wire) |
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| RN6-1 (BDL+) - Body ground | Ignition switch ON | Below 1 V |
| RN6-2 (BDL-) - Body ground | Ignition switch ON | Below 1 V |
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Using a service wire, connect terminals 2 (BDL+) and 1 (BDL-) of connector F.
Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| RN6-1 (BDL+) - RN6-2 (BDL-) | Always | Below 1 Ω |
Disconnect the service wire from connector F.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| RN6-1 (BDL+) - RN6-2 (BDL-) | Always | 1 MΩ or higher |
| RN6-1 (BDL+) - Body ground | Always | 1 MΩ or higher |
| RN6-2 (BDL-) - Body ground | Always | 1 MΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *1 | No. 3 Side Airbag Sensor LH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Rear Door Wire |
| *4 | Floor Wire |
Disconnect the connectors from the floor wire and No. 2 rear door wire.
Check that the connector (on the floor wire side and No. 2 rear door wire side) are not damaged.
| Proceed to |
|---|
| The connector is not deformed or damaged |
| The connector is deformed or damaged |
The connector is not deformed or damaged
The connector is deformed or damaged
| *1 | No. 3 Side Airbag Sensor LH |
| *2 | Airbag Sensor Assembly |
| *3 | No. 2 Rear Door Wire |
| *4 | Floor Wire |
| *5 | Service Wire |
| *a | Front view of wire harness connector
(to No. 2 Rear Door Wire) |
| *b | Front view of wire harness connector
(to Airbag Sensor Assembly) |
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| TV2-2 (BDL+) - Body ground | Ignition switch ON | Below 1 V |
| TV2-1 (BDL-) - Body ground | Ignition switch ON | Below 1 V |
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Using a service wire, connect terminals 32 (BBL+) and 31 (BBL-) of connector B.
Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| TV2-2 (BDL+) - TV2-1 (BDL-) | Always | Below 1 Ω |
Disconnect the service wire from connector B.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| TV2-2 (BDL+) - TV2-1 (BDL-) | Always | 1 MΩ or higher |
| TV2-2 (BDL+) - Body ground | Always | 1 MΩ or higher |
| TV2-1 (BDL-) - Body ground | Always | 1 MΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG