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Honda Odyssey 2004. Manual - part 326

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’02-04 models

19-110

ABS/TCS Components

Circuit Diagram (cont’d)

IG1

IG2

E16

B11

C14

C10

B16

B13

B14

I 4

I 12

3 (1 )

UNDER-HOOD FUSE/RELAY BOX

STOP (20A)

BATTERY (120A)

IG1 MAIN (50A)

ABS F/S (20A)

ABS MOTOR (30A)

BRAKE PEDAL POSITION SWITCH
Closed: Brake pedal pressed

IGNITION
SWITCH

DRIVER’S UNDER-DASH
FUSE/RELAY BOX

R/C MIRROR (7.5A)

UNDER-HOOD
ABS RELAY BOX

FAIL-SAFE
RELAY

BRN/BLK BLK

BACKUP LIGHT (10A)

PASSENGER’S UNDER-DASH
FUSE/RELAY BOX

BSC (10A)

WHT/GRN

WHT

YEL

WHT

WHT/YEL

TCS
RELAY

ABS
PUMP
MOTOR
RELAY

UNDER-HOOD
ABS RELAY BOX

PASSENGER’S UNDER-DASH
FUSE/RELAY BOX

G201

MULTI-FUSE/
RELAY BOX

BLU/BLK

YEL/RED

GRN/YEL

RED/BLU

BRN/BLK

GRN

BRN/BLK

WHT/BLU

BLK/YEL

MODULATOR UNIT

PUMP MOTOR

G302

FL-IN

FL-OUT

FR-IN

RL-IN

FR-OUT

RL-OUT

RR-IN

RR-OUT

NOL

NCL

NCR

NOR

BRN/BLK

RED/BLU

WHT/BLU

BLK

GRN

RED/BLU

YEL/BLU

RED/BLK

YEL/BLK

RED/GRN

YEL/GRN

RED/WHT

YEL/WHT

RED/GRN

YEL/GRN

LT BLU

GRY

TCS SWITCH

TCS INDICATOR

BRAKE SYSTEM
INDICATOR

GAUGE ASSEMBLY

BRAKE FLUID
LEVEL SWITCH
Closed: Low fluid

ALTERNATOR

GRN/RED

YEL/WHT

BLU/WHT

BLK

RED/WHT

BLU/ORN

YEL/BLK

YEL/GRN

YEL/RED

GRN/YEL

WHT/BLK

*: ’04 model

’04 model

’02-03 models

YEL/BLK

YEL/GRN

BLK/YEL

ABS MOTOR CHECK (7.5A)

ABS
INDICATOR

G301

G503

WHT/BLU

RIGHT-REAR
SOLENOID

RIGHT TCS
SOLENOID

LEFT-FRONT
SOLENOID

RIGHT-FRONT
SOLENOID

LEFT TCS
SOLENOID

LEFT-REAR
SOLENOID

OUT

UNDER-HOOD FUSE/RELAY BOX CONNECTORS
CONNECTOR A (18P)

CONNECTOR B (7P)

BRAKE PEDAL POSITION
SWITCH CONNECTOR

DRIVER’S UNDER-DASH FUSE/RELAY BOX CONNECTORS

CONNECTOR I (18P)

CONNECTOR C (18P)

CONNECTOR B (22P)

PASSENGER’S UNDER-DASH FUSE/RELAY BOX CONNECTORS

CONNECTOR J (16P)

GAUGE ASSEMBLY CONNECTORS

CONNECTOR C (16P)

CRUISE CONTROL/
TCS SWITCH CONNECTOR

ABS PUMP MOTOR
RELAY CONNECTOR

ABS FAIL-SAFE RELAY/
TCS RELAY CONNECTOR

MODULATOR UNIT
CONNECTOR

CONNECTOR E (20P)

Wire side of female terminals

Terminal side of female terminals

03/07/29 09:57:31 61S0X050_190_0110

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―

＋

―

＋

―

＋

―

＋

19-111

A12

A18

B16

A13

A25

B15

B13

A20

DAYTIME RUNNING
LIGHTS CONTROL UNIT

C11

C10

A16

A15

A24

A23

A22

A21

A10

A11

B11

A19

B10

E16

E17

A26

C12

ABS/TCS CONTROL UNIT (EBD)

DTC
EEPROM

STOP

PARK

ABS

TCS1

TCS2

TCS SW

IG2

FSR

PMR

TCSR

MCK

IG2

To IG2

To VCC

BRAKE
LIGHT

PARKING
BRAKE SWITCH
Closed: Brake lever

pulled

WHT/BLK

YEL/WHT

WHT/BLK

BLU/WHT

RED/WHT

BLU/ORN

YEL/BLK

YEL/GRN

YEL/RED

GRN/YEL

GRN

FL-IN

FL-OUT

FR-IN

FR-OUT

RL-IN

RL-OUT

RR-OUT

RR-IN

NOL

NCL

NOR

NCR

FRW (

)

FRW (

)

FLW (

)

FLW (

)

RLW (

)

RLW (

)

RRW (

)

RRW (

)

(

)

(

)

G303

WHEEL SENSOR

LEFT-
FRONT

RIGHT-
FRONT

LEFT-
REAR

RIGHT-
REAR

RED/BLU

YEL/BLU

RED/BLK

YEL/BLK

RED/GRN

YEL/GRN

RED/WHT

YEL/WHT

RED/GRN

YEL/GRN

LT BLU

GRY

SCS

NEP

VCC

THLOUT

VREF

FPTDR

PFINH

ATSFTP

PCM

DATA LINK
CONNECTOR (16P)

VCC

G101

PCM (SCS)

DLC

VCC

TXD

RXD

G101

G501

BLK

GND3

GND2

GND1

BLK

GRN/RED

GRN/BLU

BRN

GRN/BLK

GRN

LT BLU

GRY

GRN/YEL

BLU/YEL

BRN

LT BLU

BLU

RED/BLK

WHT/RED

PNK/BLK

LT GRN/RED

LT GRN

BRN/YEL

5V
REGULATOR

Canada

USA

GRN/WHT

GRN/RED

WHT/GRN

BRN/YEL

ABS/TCS CONTROL UNIT CONNECTORS
CONNECTOR A (26P)

CONNECTOR B (16P)

CONNECTOR C (12P)

WHEEL SENSOR CONNECTOR

FRONT

REAR

PCM CONNECTORS

CONNECTOR A (32P)

DATA LINK CONNECTOR (16P)

CONNECTOR E (20P)

Terminal side of
male terminals

Wire side of
female terminals

Wire side of female terminals

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−

＋

−

＋

−

＋

−

＋

−

０１

＊０１

Ｓ０Ｘ４Ａ０６Ｋ７０２０００８１１１０ＦＡＡＴ００

＋

ABS DTC 11, 13, 15, 17:

DTC

Appropriate Terminal

YES

DTC

Appropriate Terminal

YES

19-112

ABS/TCS Components

DTC Troubleshooting

ABS/TCS CONTROL UNIT CONNECTOR A (26P)

FLW (

) (GRN/BLU)

FRW (

) (GRN/BLK)

RLW (

) (LT BLU)

RRW (

)

(GRN/YEL)

ABS/TCS CONTROL UNIT CONNECTOR A (26P)

FLW (

) (GRN/BLU)

FRW (

) (GRN/BLK)

RLW (

)

(LT BLU)

RRW (

)

(GRN/YEL)

Wheel Sensor (Open/

Short to Body Ground/Short to Power)

1. Disconnect the ABS/TCS control unit connector A

(26P).

2. Start the engine.

3. Measure the voltage between the appropriate

wheel sensor (

) circuit terminal and body ground

(see table).

11 (Right-front)

No. 11 : FRW (

)

13 (Left-front)

No. 9 : FLW (

)

15 (Right-rear)

No. 23 : RRW (

)

17 (Left-rear)

No. 21 : RLW (

)

Repair short to power in the (

) circuit wire

between the ABS/TCS control unit and the
appropriate wheel sensor.

Go to step 4.

4. Check for continuity between the appropriate

wheel sensor (

) circuit terminal and body ground

(see table).

11 (Right-front)

No. 11 : FRW (

)

13 (Left-front)

No. 9 : FLW (

)

15 (Right-rear)

No. 23 : RRW (

)

17 (Left-rear)

No. 21 : RLW (

)

Go to step 5.

Go to step 6.

5. Disconnect the harness 2P connector from the

appropriate wheel sensor, then check for continuity
between the (

) and (

) terminals of the harness

and body ground.

Repair short to body ground in the (

) or (

)

circuit wire between the ABS/TCS control unit and
the wheel sensor.

Replace the wheel sensor.

Wire side of female terminals

Is ther e 2 V or mor e?

Is ther e continuity?

03/07/29 09:57:34 61S0X050_190_0112

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−

＋

−

＋

−

＋

−

＋

−

＋

−

＋

−

＋

−

＋

−

０３

Ｓ０Ｘ４Ａ０６Ｋ７０２０００８１１２０ＦＡＡＴ００

＋

−

＋

−

＋

−

＋

−

DTC

Appropriate Terminal

(

) Side

(

) Side

YES

DTC

Appropriate Wheel Sensor

YES

ABS DTC 12, 14, 16, 18:

19-113

ABS/TCS CONTROL UNIT CONNECTOR A (26P)

FLW (

) (GRN/BLU)

FRW (

) (GRN)

FRW (

)

(GRN/BLK)

FLW (

) (BRN)

RLW (

)

(LT BLU)

RLW (

) (GRY)

RRW (

)

(GRN/YEL)

RRW (

)

(BLU/YEL)

6. Check the resistance between the appropriate

wheel sensor (

) and (

) circuit terminals (see

table).

11 (Right-front)

No. 11 :

No. 10 :

13 (Left-front)

No. 9 :

No. 8 :

15 (Right-rear)

No. 23 :

No. 24 :

17 (Left-rear)

No. 21 :

No. 22 :

Check for loose ABS/TCS control unit

connectors. If necessary, substitute a known-good
ABS/TCS control unit, and recheck.

Go to step 7.

7. Disconnect the harness 2P connector from the

appropriate wheel sensor, and check the resistance
between the (

) and (

) terminals of the wheel

sensor.

Repair open in the (

) or (

) circuit wire, or

short between the (

) circuit wire and the (

)

circuit wire between the ABS/TCS control unit and
the wheel sensor.

Replace the wheel sensor.

NOTE: If the ABS indicator comes on because of
electrical noise, the indicator goes off when you test-
drive the vehicle at 19 mph (30 km/h).

1. Visually check for appropriate wheel sensor and

pulser installation (see table).

Right-front

Left-front

Right-rear

Left-rear

Go to step 2.

Reinstall or replace the appropriate wheel

sensor or pulser.

2. Disconnect the ABS/TCS control unit connector A

(26P).

(cont’d)

FRW ( )

FLW ( )

RRW ( )

RLW ( )

Wheel Sensor

(Electrical Noise/Intermittent Interruption)

Wire side of female terminals

Is the r esistance between 450

2,000

Is the r esistance between 450

2,000

Ar e they installed cor r ectly?

03/07/29 09:57:34 61S0X050_190_0113

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