DTC B1642/81: Lost Communication with Side Satellite Sensor Bus RH; DTC B1643/81: Side Satellite Sensor Bus RH Initialization Incomplete; DTC B1647/82: Lost Communication with Side Satellite Sensor Bus LH; DTC B1648/82: Side Satellite Sensor Bus LH Initialization Incomplete [03/2017 - 04/2020]: Description
The circuit for the side collision sensor LH or RH is composed of the airbag ECU assembly, rear airbag sensor LH or RH and door side airbag sensor LH or RH.
The door side airbag sensor LH or RH and rear airbag sensor LH or RH detect impacts to the vehicle and send signals to the airbag ECU assembly to determine if the airbag should be deployed.
DTC B1642/81, B1643/81, B1647/82 or B1648/82 is stored when a malfunction is detected in the circuit for the side satellite sensor bus LH or RH.
| DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Warning Indicate |
Test Mode / Check Mode |
| B1642/81 |
Lost Communication with Side Satellite Sensor Bus RH |
- The airbag ECU 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 RH for 2 seconds.
- A door side airbag sensor RH malfunction.
- A rear airbag sensor RH malfunction.
- An airbag ECU assembly malfunction.
|
- Floor wire
- Front door wire RH
- Door side airbag sensor RH
- Rear airbag sensor RH
- Airbag ECU assembly
|
Comes on |
Not applicable |
| B1643/81 |
Side Satellite Sensor Bus RH Initialization Incomplete |
- The airbag ECU 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 RH for 2 seconds.
- A door side airbag sensor RH malfunction.
- A rear airbag sensor malfunction.
- An airbag ECU assembly malfunction.
|
- Floor wire
- Front door wire RH
- Door side airbag sensor RH
- Rear airbag sensor RH
- Airbag ECU assembly
|
Comes on |
Not applicable |
| B1647/82 |
Lost Communication with Side Satellite Sensor Bus LH |
- The airbag ECU 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 door side airbag sensor LH malfunction.
- A rear airbag sensor LH malfunction.
- An airbag ECU assembly malfunction.
|
- Floor wire
- Front door wire LH
- Door side airbag sensor LH
- Rear airbag sensor LH
- Airbag ECU assembly
|
Comes on |
Not applicable |
| B1648/82 |
Side Satellite Sensor Bus LH Initialization Incomplete |
- The airbag ECU 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 door side airbag sensor LH malfunction.
- A rear airbag sensor LH malfunction.
- An airbag ECU assembly malfunction.
|
- Floor wire
- Front door wire LH
- Door side airbag sensor LH
- Rear airbag sensor LH
- Airbag ECU assembly
|
Comes on |
Not applicable |