1995 HONDA ODYSSEY instrument panel

Anti-lock Brake System

The Anti-lock Brake System (ABS) is standard equipment on all U.S.
models and the Canadian six-
passenger model. It is optional on the
Canadian seven-passenger model.

The ABS works by measuring how fast the wheels are turning during

braking and comparing their speed.

If any wheel is rotating much slower
than the others (on the verge of
locking up and skidding), the system reduces hydraulic pressure to that
wheel's brake caliper. When that
wheel's speed matches the other
wheels, the system applies normal hydraulic pressure. This can take
place several times per second ateach wheel. You feel the ABS
working as rapid pulsations in the
brake pedal.
Each wheel has a wheel speed
sensor assembly. As the wheel
rotates, the sensor sends electrical
pulses to the ABS control unit. The
pulse frequency varies with the
wheel speed.
The electrical output of the ABS control unit is connected to the
modulator/solenoid unit. During
braking, the ABS control unit monitors the pulse frequencies from
the four wheels. When the control unit detects a wheel locking up, it
energizes the appropriate solenoid in
the modulator/solenoid unit. Thereare six solenoids: two for each front
wheel, and two for the rear wheels.
The energized solenoid reduces hydraulic pressure to one side of amodulator valve. This, in turn,
reduces hydraulic pressure in the
brake line going to the affected
wheel. When that wheel speeds up because of the reduced braking
effort, the control unit de-energizes the solenoid. This builds hydraulic
pressure on the modulator valve.
The pressure increases in the hydraulic line to the wheel.
For the system to react quickly, the
modulator/solenoid unit must have
brake fluid under high pressure.
This is supplied by a piston-type accumulator that is pressurized by
an electric pump. A pressure-sensingswitch on the accumulator controls
this pump.
The control unit also contains error detection circuitry. It monitors the
operation of the wheel sensors,
solenoids, pump, and electronics. If
the control unit detects any faults, it shuts off power to the pump motor
and solenoids. The light on the
instrument panel comes on. The
brakes then work like a conventional system without anti-lock capabilities.
Technical InformationProCarManuals.comMain Menu Table of Contents s t

Index

Flashers, Hazard Warning.............. 45
Flat Tire, Changing a.................... 193
Fluids Automatic Transmission........... 155
Brake........................................... 156
Power Steering........................... 157
Windshield Washer................... 154
FM Stereo Radio Reception...................................... 87
Folding the Second Seats ............... 60
Folding the Third Seats.................. 62
Foreign Countries, Driving in...... 109
Four-way Flashers........................... 45
Front End, Towing by Emergency Wrecker................. 213

Fuel.................................................. 108
Fill Door and Cap....................... 110
Gauge............................................ 40Octane Requirement................. 108
Oxygenated................................ 108
Tank, Filling the......................... 110
Fuses, Checking the...................... 209 Gas Mileage, Improving................ 114
Gasohol........................................... 108
Gasoline.......................................... 108
Gauge............................................ 40
Octane Requirement................. 108
Tank, Filling the......................... 110
Gas Station Procedures................. 110

Gauges
Engine Coolant Temperature .... 40
Fuel................................................ 40
Gearshift Lever Positions............. 120
Glass Cleaning............................... 188
Glove Box......................................... 55
Halogen Headlight Bulbs.............. 177
Hazard Warning Flashers............... 45
Headlights......................................... 42 Aiming......................................... 175
Daytime Running Lights............. 42
High Beam Indicator................... 38
High Beams, Turning on............ 42
Low Beams, Turning on ............. 42
Reminder Chime.......................... 42

Replacing Halogen Bulbs ......... 177

Turning on.................................... 42

Head Restraints............................... 58

Heating and Cooling........................ 76

High Altitude, Starting at.............. 119

High-Low Beam Switch .................. 42
Hood, Opening the ........................ 111

Horn.................................................. 51

Hot Coolant, Warning about........ 151

Hydroplaning.................................. 127

Identification Number, Vehicle.... 216

If Your Car Has to be Towed....... 213

Ignition
Keys............................................... 51

Switch............................................ 52

Timing Control System............. 225

Indicator Lights, Instrument
Panel.............................................. 35

Infant Restraint................................ 22

Inflation, Proper Tire .................... 170

Inside Mirror.................................... 66

Inspection, Tire.............................. 171ProCarManuals.comMain Menu s t Main Menu s t

Index

Instrument Panel............................. 34
Instrument Panel Brightness......... 43 Interior Cleaning............................ 187
Interior Lights.................................. 73
Introduction....................................... i

Jacking up the Car......................... 195

Jack, Tire........................................ 193

Jump Starting................................. 200

Keys................................................... 51

Label, Certification........................ 216

Lane Change, Signaling.................. 43

Lap Belt............................................... 7

Lap/Shoulder Belts........................... 6
Leaking of Exhaust into Car.......... 29
Lighter, Cigarette............................ 72
Lights Headlight Aiming...................... 175 Bulb Replacement..................... 177

Indicator........................................ 35
Parking.......................................... 42

Turn Signal................................... 43

Loading Cargo................................ 116
LOCK (Ignition Key Position)....... 52
Locks Anti-theft Steering Column........ 52
Fuel Fill Door............................. 110
Glove Box..................................... 55
Power Door.................................. 53
Tailgate......................................... 55
Low Coolant Level......................... 150
Low Oil Pressure Indicator.... 36, 204
Lubricant Specifications Chart.... 218
Luggage.......................................... 116
Maximum Speeds.......................... 123

Meters, Gauges................................ 39

Methanol in Gasoline.................... 109

Mirrors, Adjusting........................... 66

Neutral Gear Position.................... 122

New Vehicle Break-in ................... 108

NOTICE, Explanation of................... ii

Numbers, Identification................ 216
Occupant Protection System............ 4
Octane Requirement, Gasoline.... 108
Odometer.......................................... 39

Odometer, Trip................................ 39

Oil
Change, How to ......................... 148

Change, When to....................... 140

Checking Engine....................... 146
Pressure Indicator....................... 36
CONTINUED

Maintenance................................... 135

Periodic Items............................ 144

Record.................................142 - 143

Required Indicator....................... 40

Safety........................................... 136

Schedule............................ 138 - 141

Malfunction Indicator Lamp .. 37, 206ProCarManuals.comMain Menu s t