DTC B1068-1A / B1069-1A
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 |
|---|---|
|
B1068-1A: Side Air Bag Circuit Low Resistance (Driver Side) Driver-side side-air bag (inflator) module circuit resistance is less than specified range. |
•Driver-side and/or passenger-side side-air bag (inflator) module circuit
•Driver-side and/or passenger-side side-air bag (inflator) module •SDM |
|
B1069-1A: Side Air Bag Circuit Low Resistance (Passenger Side) Passenger-side side-air bag (inflator) module circuit resistance is less than specified range. |
Circuit Diagram
| [A]: | “Q104” or “Q105” connector (View: [a]) | 1. | Driver-side side-air bag (inflator) module |
| [B]: | “L384” or “L385” connector (View: [a]) | 2. | Passenger-side side-air bag (inflator) module |
| [C]: | “L04” connector (View: [a]) | 3. | SDM |
| A1. | Driver-side side-air bag (inflator) module deployment signal output circuit | 4. | Shorting bar |
| A2. | Driver-side side-air bag (inflator) module deployment signal ground circuit | 5. | Floor harness |
| A3. | Passenger-side side-air bag (inflator) module deployment signal output circuit | 6. | Seat harness |
| A4. | Passenger-side side-air bag (inflator) module deployment signal ground circuit |
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “Air Bag Diagnostic System Check” performed?
|
Go to Step 2.
|
|
| 2 |
Side-air bag (inflator) module check
1)Check that ignition is “OFF”.
2)Disconnect “Q104” or “Q105” connector.
3)Connect “STEERING WHEEL” harness (1) of special tool (C), special tools (A) and (B) to “Q104” or “Q105” connector.
4)Set ignition “ON”.
5)Check for DTC.
Is DTC B1068-1A or DTC B1069-1A detected?
|
Go to Step 3.
|
Replace side-air bag (inflator) module.
|
| 3 |
Side-air bag (inflator) module circuit check
1)Set ignition “OFF”.
2)Check for proper connection to “L04” connector.
3)Disconnect “L04” connector.
4)Release shorting bar in SDM connector inserting release tool (B).
5)Check the following points.
•Resistance between “L04-21” and “L04-22” terminals (DTC B1068-1A): infinity
•Resistance between “L04-24” and “L04-23” terminals (DTC B1069-1A): infinity  Is check result OK?
|
Replace SDM and recheck DTC.
|
Go to Step 4.
|
| 4 |
Floor harness circuit check
1)Disconnect “L384” or “L385” connector.
2)Release shorting bar in SDM connector inserting release tool (B).
3)Check the following points.
•Resistance between “L04-21” and “L04-22” terminals (DTC B1068-1A): infinity
•Resistance between “L04-24” and “L04-23” terminals (DTC B1069-1A): infinity Is check result OK?
|
Replace seat harness.
|
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.