STEP 3. Connector check: SRS-ECU, seat belt pre-tensioner (passenger's side).
(1) Check that the negative battery terminal is disconnected. If the negative battery terminal is connected, disconnect it.
(2) After disconnecting the SRS-ECU connector, connect it again.
(3) After disconnecting the seat belt pre-tensioner (passenger's side) harness side connector, connect the connector again. For the seat belt pre-tensioner (passenger's side) harness side connector disconnection, use the flat-tipped screwdriver to pull out the harness side connector locking button. After releasing the lock, disconnect the harness side connector.
(4) Connect the negative battery terminal.
(5) After erasing the DTC memory, check the DTC again.
(6) Disconnect the negative battery terminal.
Is DTC B1670 set?
Go to Step 4. Replace the connector concerned.