STEP 3. Check the passenger's seat belt pre-tensioner.
(1) Disconnect the negative battery terminal.
(2) Disconnect passenger's seat belt pre-tensioner connector D-03. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector.
(3) Connect special tool MB991865 to special tool MB991884.
(4) Connect special tool MB991884 to the D-03 harness side connector.
(5) Connect the negative battery terminal.
(6) Erase diagnostic trouble code memory, and then check the diagnostic trouble code.
Is DTC B1C47 stored?
Go to Step 4. Replace the passenger's seat belt with pre-tensioner (Refer to ). Then go to Step 6.