DTC B106C-1A / B106D-1A
Precautions: Precautions for Air Bag System Service · Precautions for Handling and Storage of Air Bag System Components · Precautions for Disposal of Air Bag and Seat Belt Pretensioner · Precautions for Restraint · General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
B106C-1A: Curtain Air Bag Circuit Low Resistance (Driver Side) Driver-side curtain air bag (inflator) module circuit resistance is less than specified range. |
•Driver-side and/or passenger-side curtain air bag (inflator) module circuit
•Driver-side and/or passenger-side curtain air bag (inflator) module •SDM |
|
B106D-1A: Curtain Air Bag Circuit Low Resistance (Passenger Side) Passenger-side curtain air bag (inflator) module circuit resistance is less than specified range. |
Circuit Diagram
| [A]: | “L290” and “L291” connector (View: [a]) | A3. | Passenger-side curtain air bag (inflator) module deployment signal output circuit | 3. | SDM |
| [B]: | “L05” connector (View: [a]) | A4. | Passenger-side curtain air bag (inflator) module deployment signal ground circuit | 4. | Shorting bar |
| A1. | Driver-side curtain air bag (inflator) module deployment signal output circuit | 1. | Driver-side curtain air bag (inflator) module | 5. | Floor harness |
| A2. | Driver-side curtain air bag (inflator) module deployment signal ground circuit | 2. | Passenger-side curtain air bag (inflator) module |
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “Air Bag Diagnostic System Check” performed?
|
Go to Step 2.
|
|
| 2 |
Curtain air bag (inflator) module Check
1)Check that ignition is “OFF”.
2)Disconnect “L290” or “L291” connector.
3)Connect “STEERING WHEEL” harness (1) of special tool (C), special tools (A) and (B) to “L290” or “L291” connector.
4)Set ignition “ON”.
5)Check for DTC.
Is DTC B106C-1A or DTC B106D-1A indicated?
|
Go to Step 3.
|
Replace curtain air bag (inflator) module.
|
| 3 |
Floor harness circuit check
1)Set ignition “OFF”.
2)Disconnect “L05” connector.
3)Release shorting bar in SDM connector inserting release tool (B).
4)Check the following points.
•Resistance between “L05-17” and “L05-18” terminals (DTC B106C-1A): infinity
•Resistance between “L05-20” and “L05-19” terminals (DTC B106D-1A): infinity  Is check result OK?
|
Replace SDM and recheck DTC.
|
Replace floor harness.
|
NOTE:
Upon completion of inspection and repair work, perform the following items.
•Reconnect all air bag system components and check that all components are properly mounted.
•Clear DTCs, referring to DTC Clearance if any DTC is detected.
•Repeat Air Bag Diagnostic System Check to check that the trouble has been solved.
•Clear DTCs, referring to DTC Clearance if any DTC is detected.
•Repeat Air Bag Diagnostic System Check to check that the trouble has been solved.