Honda Civic Service Manual: Front Passenger's Weight Sensor Unit Removal and Installation ('13-'14: 4-door)

1.

Make sure the ignition switch is in LOCK (0).

2.

Disconnect and isolate the negative cable with the battery sensor (A) from the battery.

NOTE:

3.

Disconnect the positive cable (D) from the battery.

4.

Wait at least 3 minutes before starting work.

1.

From under the front passenger's seat, disconnect the front passenger's weight sensor connector A, B and C.

2.

Remove the front passenger's weight sensor unit (D) from the bracket (E).

NOTE: While separating the front passenger's weight sensor unit from the bracket, use a flat-tipped screwdriver (F) to push and release it from the bracket.

After replacing the front passenger's weight sensor unit with a new one, initialize the front passenger's weight sensor unit. Front passenger's weight sensor unit initialization initializes the front passenger's weight sensor.

After installing the front passenger's weight sensor unit, make sure the front passenger's weight sensor unit has the latest software. If it does not have the latest, update the software in the front passenger's weight sensor unit.

1.

Install the front passenger's weight sensor unit (D) to the bracket (E).

2.

NOTE: Make sure the front passenger's weight sensor unit is properly installed. You will hear a click when the front passenger's weight sensor unit is securely mounted on the bracket.

3.

Connect the front passenger's weight sensor connector A, B, and C.

NOTE: If the battery performs abnormally, test the battery.

1.

Clean the battery terminals.

2.

Connect the positive cable (A) to the battery.

NOTE: Always connect the positive side first.

3.

Connect the negative cable and the battery sensor (B) to the battery.

NOTE: To protect the battery sensor connector (C) from damage, do not hold it when installing the negative terminal.

4.

Apply multipurpose grease to the terminals to prevent corrosion.

1.

Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.

2.

Turn the ignition switch to ON (II).

3.

Make sure the HDS communicates with the vehicle. If it does not communicate, go to the DLC circuit troubleshooting.

1.

Clear the DTC(s) by following the screen prompts on the HDS.

2.

Turn the ignition switch to LOCK (0), then wait for 10 seconds.

Front Passenger's Weight Sensor Initialization

NOTE:

1.

Position the front passenger's seat all the way rearward, and adjust the seat-back to the forward most position. Do not move the seat from this position until the initialization is completed.

2.

Drive the vehicle, and accelerate to 22 mph (36 km/h), then stop on level ground.

3.

2-door: From the HDS Main Menu, select SRS, then INITIALIZATION. In the INITIALIZATION Menu, select SWS Initialization. Follow the prompts until the front passenger's weight sensor initialization has been completed.

4.

4-door: From SRS of the HDS Main Menu, select SWS, then Adjustment. In the Adjustment Menu, select SWS Initialization. Follow the prompts until the front passenger's weight sensor initialization has been completed.

5.

Turn the ignition switch to LOCK (0).

NOTE:

1.

Exit HDS diagnostic system, then select the update mode, and follow the screen prompts to update the front passenger's weight sensor unit.

2.

If the software in the front passenger's weight sensor unit is the latest, disconnect the updating tool from the DLC, and go back to the procedure that you were doing. If the software in the front passenger's weight sensor unit is not the latest, follow the instructions on the screen.

NOTE: If you run into a problem during the update procedure (programming takes over 15 minutes, status bar goes over 100%, D position or immobilizer indicator flashes, HDS tablet freezes, etc.), follow these steps to minimize the chance of damaging the front passenger's weight sensor unit:

3.

Turn the ignition switch to LOCK (0).

Turn the ignition switch to ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.