Honda Civic. Manual — part 1069

7. Carefully remove the relays by prying under the base of the relay.

INSTALLATION

1. Install the relays and connect the connectors to the under-hood fuse/relay box,

then install the under-hood fuse/relay box in the reverse order of removal.

2. Install the removed parts in the reverse order of removal.
3. Connect the positive cable to the battery, then connect the negative cable to the

battery.

4. Enter the anti-theft code for the audio or the navigation system, then enter the

customer's audio presets, and set the clock.

5. Confirm that all systems work properly.

NOTE:

Do not use pliers. Pliers will damage the relays, which
could cause the engine to stall or not start.

2008 Honda Civic GX

2006-08 ELECTRICAL Under-hood Fuse/Relay Box - Civic (Except Hybrid & Si)

2006-08 BRAKES

VSA System - Civic (All Except Hybrid)

COMPONENT LOCATION INDEX

Fig. 1: Locating VSA System Components

GENERAL TROUBLESHOOTING INFORMATION

SYSTEM INDICATOR

This system has four indicators:

ABS indicator (A)

Brake system indicator (B)

VSA indicator (C)

VSA activation indicator (D)

2008 Honda Civic GX

2006-08 BRAKES VSA System - Civic (All Except Hybrid)

2008 Honda Civic GX

2006-08 BRAKES VSA System - Civic (All Except Hybrid)

Fig. 2: Identifying System Indicator

When the system is OK, each indicator comes on for about 2 seconds after turning
the ignition switch ON (II), then goes off.

When the system detects a problem, a DTC will be set and, depending upon the
failure, the VSA modulator-control unit will determine which indicator(s) will be
turned on. If the problem goes away (system returns to normal), the indicator(s) will
be controlled in the following way depending upon the DTC that was set:

The indicator(s) will come on and stay on when the ignition switch is ON (II).

The indicator(s) will automatically go off.

The indicator(s) will go off after the vehicle is driven.

ABS Indicator

The ABS indicator comes on when the ABS function is lost. The brakes still work
like a conventional system.

Brake System indicator

The brake system indicator comes on when the EBD function is lost, the parking
brake is applied, and/or the brake fluid level is low.

VSA Indicator

NOTE:

If two or more wheel speed sensors fail, the brake system
indicator will come on.

2008 Honda Civic GX

2006-08 BRAKES VSA System - Civic (All Except Hybrid)

The VSA indicator comes on when the VSA function is lost.

VSA Activation Indicator

The VSA activation indicator blinks when the VSA function is activating. The VSA
activation indicator comes on, when the VSA is off, or the VSA function is lost.

DIAGNOSTIC TROUBLE CODE (DTC)

The memory can hold all DTCs. However, when the same DTC is detected
more than once, the more recent DTC is written over the earlier one. Therefore,
when the same problem is detected repeatedly, it is memorized as a single
DTC.

The DTCs are indicated in the order they occur.

The DTCs are memorized in the EEPROM. Therefore, the memorized DTCs
cannot be canceled by disconnecting the battery. Do the specified procedures
to clear the DTCs.

SELF-DIAGNOSIS

Self-diagnosis can be classified into two categories:

Initial diagnosis: Done right after the ignition switch is turned ON (II) and
until the ABS and VSA indicators go off.

Regular diagnosis: Done right after the initial diagnosis until the ignition
switch is turned OFF.

When the system detects a problem, the VSA modulator-control unit shifts to
fail-safe mode.

KICKBACK

The pump motor operates when the VSA modulator-control unit is functioning, and
the fluid in the reservoir is forced out to the master cylinder, causing kickback at the
brake pedal.

PUMP MOTOR

The pump motor operates when the VSA modulator-control unit is functioning.

The VSA modulator-control unit checks the pump motor operation during

2008 Honda Civic GX

2006-08 BRAKES VSA System - Civic (All Except Hybrid)