Honda Civic Service Manual: Under-Dash Fuse/Relay Box Removal and Installation (KA models with Keyless Access System)

Honda Civic Service Manual / Accessories / Security & Keyless Entry / Under-Dash Fuse/Relay Box Removal and Installation (KA models with Keyless Access System)

SRS components are located in this area. Review the SRS component locations and the precautions and procedures before doing repairs or service.

1.	Battery Terminal - Disconnection

Make sure the ignition switch is in LOCK (0), or the vehicle ignition in the OFF mode.

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

NOTE:

Always disconnect the negative side first.

To protect the battery sensor connector (B) from damage, do not hold it when removing the negative terminal.

Do not disconnect the battery sensor from the negative terminal (C).

Disconnect the positive cable (D) from the battery.

2.	Driver's Dashboard Lower Cover

Remove the driver's dashboard lower cover (A).

3.	Front Door Sill Trim - 4-Door

Remove the cap (A) from the front door sill trim (B).

Remove the opener lock cylinder (C).

Remove the screw (A).

Remove the front door sill trim (A).

4.	Kick Panel

Pull out the front door opening seal (A) as needed.

Remove the kick panel (B).

5.	Under-Dash Fuse/Relay Box

Disconnect the front side connectors of the under-dash fuse/relay box (A).

Remove the under-dash fuse/relay box.

Disconnect the back side connectors of the under-dash fuse/relay box.

	4.	Carefully remove the relays using the relay puller tool.
		NOTE: Do not use pliers. Pliers will damage the relays, which could cause the engine to stall or not start or cause other functions to fail.

SRS components are located in this area. Review the SRS component locations and the precautions and procedures before doing repairs or service.

NOTE: The MICU which is part of the under-dash fuse/relay box has a component of the immobilizer system. The MICU must be registered when the under-dash fuse/relay box is replaced, or the vehicle will not start.

1.	Under-Dash Fuse/Relay Box

Install the relays in the under-dash fuse/relay box (A).

Connect the back side connectors of the under-dash fuse/relay box.

Install the under-dash fuse/relay box.

Connect the front side connectors of the under-dash fuse/relay box.

2.	Kick Panel

Install the kick panel (A).

Install the front door opening seal (B).

3.	Front Door Sill Trim - 4-Door

Install the front door sill trim (A).

Install the screw (A).

Install the opener lock cylinder (A).

Install the cap (B) to the front door sill trim (C).

4.	Driver's Dashboard Lower Cover

Install the driver's dashboard lower cover (A).

5.	Battery Terminal - Reconnection

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

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.

Apply multipurpose grease to the terminals to prevent corrosion.

6.	HDS DLC - Connection

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

Turn the ignition switch to ON (II).

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

7.	Keyless Access System - Register

NOTE: If the under-dash fuse/relay box is replaced, go to step 1. If the original under-dash fuse/relay box is installed, go to step 4.

Select ONE-PUSH START from the SYSTEM SELECTION MENU, then select REGISTRATION.

Select the REPLACE MICU, then select the suitable menu from the HDS indications.

After registration, confirm that the vehicle will start.

Confirm that all systems work properly.

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Honda Civic Service Manual: Under-Dash Fuse/Relay Box Removal and Installation (KA models with Keyless Access System)

Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)

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