Honda Odyssey 2004. Manual - part 310

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Symptom

Diagnostic procedure

Also check for

19-46

ABS Components

Symptom Troubleshooting Index

ABS indicator does not come on

ABS Indicator Circuit Troubleshooting (see page
19-73)

ABS indicator does not go off, and no
DTCs are stored

ABS Indicator Circuit Troubleshooting (see page
19-73)

Brake system indicator does not come
on

Brake System Indicator Circuit Troubleshooting
(see page 19-75)

Brake system indicator does not go off
and no DTCs are stored

Brake System Indicator Circuit Troubleshooting
(see page 19-75)

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ABS Control Unit Inputs and Outputs for Connector B (12P)

Terminal

number

Terminal sign

(Terminal

name)

Terminal

Wire

color

Description

Measurement

Conditions

(Ignition switch ON (II))

Voltage

19-47

System Description

ABS CONTROL UNIT CONNECTOR B (12P)

1

BLU/
WHT

WALP

(Warning

lamp)

Drives ABS indicator
light
(Turns the indicator
light drive transistor
to ON, then turns off
the indicator light)

1

ON

4

6 V

OFF

Below 0.3 V

2

BLK

GND1

(Ground 1)

Ground

2

Below 0.3 V

3

YEL/

WHT

RR-OUT

(Rear-right

outlet)

Drives right-rear
outlet solenoid valve

3

OFF

Battery
Voltage

4

YEL/

BLU

FL-OUT

(Front-left

outlet)

Drives left-front
outlet solenoid valve

4

5

YEL/

GRN

RL-OUT

(Rear-left

outlet)

Drives left-rear outlet
solenoid valve

5

ON

(Disconnect

connector

A to turn light on)

Below 0.3 V

6

YEL/

BLK

FR-OUT

(Front-right

outlet)

Drives right-front
outlet solenoid valve

6

7

BLK

GND2

(Ground 2)

Ground

7

Below 0.3 V

8

RED/
WHT

RR-IN

(Rear-right

inlet)

Drives right-rear inlet
solenoid valve

8

OFF

Battery
Voltage

9

RED/

BLU

FL-IN

(Front-left

inlet)

Drives left-front inlet
solenoid valve

9

10

RED/

GRN

RL-IN

(Rear-left

inlet)

Drives left-rear inlet
solenoid valve

10

ON

(Disconnect

connector

A to turn light on)

Below 0.3 V

11

RED/

BLK

FR-IN

(Front-right

inlet)

Drives right-front
inlet solenoid valve

11

12

YEL/

RED

PMR

(Pump

motor relay)

Drives pump motor
relay

12

OFF

Pump

motor

ON

Below 1.0 V

OFF

Battery
Voltage

ON

Below 0.3 V

(cont’d)

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

ABS
indicator

ABS
indicator

ABS
indicator

ABS
indicator

Wire side of female terminals

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１２

ABS Control Unit Inputs and Outputs for Connector A (22P)

Terminal

number

Terminal sign

(Terminal name)

Terminal

Wire

color

Description

Measurement

Conditions

(Ignition switch ON (II))

Voltage

19-48

ABS Components

System Description (cont’d)

ABS CONTROL UNIT CONNECTOR A (22P)

1

BLK

GND3

(Ground 3)

Ground

1

Below 0.3 V

2

YEL/

WHT

PARK

(Parking)

Detects parking
brake switch signal

2

Engine
running,
Parking
brake

Pulled

Below 0.3 V

Release

Battery
Voltage

6

BRN

FLW (

)

(Front-left

wheel

negative)

Detects left-front
wheel sensor signal

6

7

Wheel

Turn wheel
at 1 turn/
second

AC:
0.053 V or
above
(Reference)

0.15 Vp-p or
above

7

GRN/

BLU

FLW (

)

(Front-left

wheel

positive)

8

GRN

FRW (

)

(Front-right

wheel

negative)

Detects right-front
wheel sensor signal

8

9

9

GRN/

BLK

FRW (

)

(Front-right

wheel

positive)

Stopped

0.25 V
1.15 V

10

WHT/

BLK

STOP

Detects brake switch
signal

10

Brake pedal

Pressed

Battery
Voltage

Released

Below 0.3 V

11

YEL/

BLK

IG2

(Ignition 2)

Power source for
activating the system

11

Ignition
switch

ON (II)

Battery
Voltage

Start (III)

Below 0.3 V

GND

GND

GND

GND

Oscilloscope:

Wire side of female terminals

03/07/29 09:54:20 61S0X050_190_0048

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Terminal

number

Terminal sign

(Terminal name)

Terminal

Wire

color

Description

Measurement

Conditions

(Ignition switch ON (II))

Voltage

19-49

12

BLK

GND4

(Ground 4)

Ground

12

Below 0.3 V

14

BRN

SCS

(Service check

signal)

Detects service check
connector signal
(DTC indication or
DTC clearing)

14

SCS circuit

Shorted

Below 0.3 V

Opened

About 5 V

16

GRN

MCK

(Motor check)

Detects pump motor
drive signal

16

Pump motor

ON

Battery
Voltage

OFF

Below 0.3 V

Remove MCK fuse

About 10 V

17

LT

BLU

RLW (

)

(Rear-left

wheel

positive)

Detects left-rear
wheel sensor signal

17

18

Wheel

Turn wheel
at 1 turn/
second

AC:
0.053 V or
above
(Reference)

0.15 Vp-p or
above

18

GRY

RLW (

)

(Rear-left

wheel

positive)

19

GRN/

YEL

RRW (

)

(Rear-right

wheel

positive)

Detects right-rear
wheel sensor signal

19

20

20

BLU/

YEL

RRW (

)

(Rear-right

wheel

negative)

Stopped

0.25 V
1.15 V

21

YEL/

GRN

FSR

(Fail-safe

relay)

Drives ABS fail-safe
relay (ABS fail-safe
relay is turned OFF to
shut off the power
source to the
solenoid and pump
motor relay when a
problem occurs.)

21

ABS
(SCS circuit
must be
open)

Warning

Below 0.3 V

Normal

About 11 V

22

LT

BLU

DLC

(Data link

connector)

Communicates with
the HDS

22

(cont’d)

GND

GND

GND

GND

GND

Oscilloscope:

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