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Honda Odyssey 2004. Manual - part 196

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14-178

A/T Interlock System

Circuit Diagram

Wire side of female terminals

B (22P)

Terminal side of male terminals

A (24P)

MULTIPLEX CONTROL UNIT, DRIVER’S CONNECTORS

E9 (2001)

A32 (1999 2000)

A28 (1999 2000)

IG1

G401

BLK

B11

A15

A12

YEL

BLK

POWERTRAIN CONTROL MODULE (PCM)

ILU

E15 (2001)

WHT/RED

BLK/BLU

ATP P

ILU

B12

B22

GRN

YEL

IG1

BAT

IGNITION SWITCH

No.9 (10A)

UNDER HOOD FUSE/RELAY BOX

No.42 (50A)

No.41 (120A)

No.47 (20A)

BATTERY

WHT/BLK

SWITCH

PIN

PARK

G401

BLK

WHT/RED

WHT/YEL

BK SW

STEERING LOCK
ASSEMBLY

SHIFT LOCK
SOLENOID

KEY
INTERLOCK
SWITCH

KEY
INTERLOCK
SOLENOID

BRAKE
PEDAL
POSITION
SWITCH
(BRAKE
SWITCH)

SHIFT LOCK
SOLENOID

MULTIPLEX CONTROL
UNIT (DRIVER’S)

TRANSMISSION
RANGE SWITCH
P POSITION

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YES

1999-2000 Models:

2001 Model:

YES

1999-2000 Models:

2001 Model:

YES

14-179

Shift Lock System Circuit Troubleshooting

PCM CONNECTOR A (32P)

ILU (WHT/RED)

PCM CONNECTOR E (31P)

ILU (WHT/RED)

PCM CONNECTORS

A (32P)

LG1 (BRN/BLK)

LG2 (BRN/BLK)

B (25P)

BK SW (WHT/BLK)

LG2 (BRN/BLK)

LG1 (BRN/BLK)

BK SW (WHT/BLK)

A (31P)

E (31P)

PCM CONNECTORS

1. Press the brake pedal.

Go to step 2.

Repair faulty brake light circuit.

2. Turn the ignition switch ON (II), and shift to P

position.

3. Press the brake pedal, and release the accelerator

pedal.

4. Measure ILU voltage between these terminals and

body ground:

• 1999-2000 models: Between A28 terminal and

ground.

• 2001 model: Between E15 terminal and ground.

Check for an open in the wire between the

A28 terminal (1999-2000 models) or E15 terminal
(2001 model) and the multiplex control unit
(driver’s), and check for loose terminal fit in the
multiplex control unit (driver’s) connectors. If
necessary, substitute a known-good multiplex
control unit (driver’s) and recheck.

Go to step 5.

5. Turn the ignition switch OFF.

6. Disconnect these connectors from the PCM:

• 1999-2000 models: A (32P) and B (25P)

connectors.

• 2001 model: A (31P) and E (31P) connectors.

7. Press the brake pedals and measure the voltage

between these terminals.

• 1999-2000 models: Between the A32 and B20 or

B22 terminals.

• 2001 model: Between the E9 and A25 or A26

terminals.

Release the brake pedal and go to step 8.

Repair open in the wire between the A32

terminal (1999-2000 models) or E9 terminal (2001
model) and the brake pedal position switch (brake
switch).

(cont’d)

Wire side of female terminals

Ar e the br ake lights ON?

Is ther e batter y voltage?

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０２

1999-2000 Models:

2001 Model:

YES

14-180

A/T Interlock System

Shift Lock System Circuit Troubleshooting (cont’d)

PCM CONNECTORS

B (25P)

LG1 (BRN/BLK)

LG2 (BRN/BLK)

C (31P)

TPS (RED/BLK)

PCM CONNECTOR A (31P)

LG2 (BRN/BLK)

LG1 (BRN/BLK)

THROTTLE POSITION
SENSOR CONNECTOR

SG2 (GRN/BLK)

VCC2 (YEL/BLU)

SG2 (GRN/BLK)

8. Reconnect the disconnected connectors to the PCM.

9. Turn the ignition switch ON (II).

10. Measure the voltage between these terminals:

• 1999-2000 models: Between the C27 and B20 or B

22 terminals.

• 2001 model: Between the A15 and A25 or A26

terminals.

Go to step 15.

Go to step 11.

11. Turn the ignition switch OFF.

12. Disconnect the TPS connector.

13. Turn the ignition switch ON (II).

14. Measure the voltage between the No. 1 and No. 3

terminals of the TPS connector.

Check for an open or short in the wire

between the C27 terminal and the TPS. If the wire is
OK, replace the TPS.

Go to step 15.

15. Turn the ignition switch OFF, and disconnect the

PCM C (31P) connector. Check for continuity
between the No. 1 terminal of the TPS connector
and body ground, and between the No. 3 terminal
of the TPS connector and body ground.

Check for a short to ground between the

No. 1 or No. 3 terminal of the TPS connector and
ground. If the wire is OK, replace the PCM.

Go to step 16.

16. Disconnect the shift lock solenoid connector.

Wire side of female terminals

Is ther e about 0.5 V ( thr ottle f ully closed)?

Is ther e about 5 V ?

Is ther e continuity?

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YES

14-181

MULTIPLEX CONTROL UNIT
(DRIVER’S) 22P CONNECTOR B

SHIFT LOCK SOLENOID
CONNECTOR

GRN

SHIFT LOCK SOLENOID (GRN)

SHIFT LOCK SOLENOID
CONNECTOR

YEL

SHIFT LOCK SOLENOID
CONNECTOR

17. Check for continuity between the No. 2 terminal of

the shift lock solenoid connector and the No. 22
terminal of the multiplex control unit (driver’s) 22P
connector B.

Go to step 18.

Repair open in the wire between the No. 22

terminal of the multiplex control unit (driver’s) 22P
connector and the shift lock solenoid.

18. Turn the ignition switch ON (II).

19. Measure the voltage between the No. 1 terminal of

the shift lock solenoid connector and body ground.

Go to step 20.

Check for blown No. 9 (10A) fuse in the

driver’s under-dash fuse/relay box. If the fuse is OK,
repair open or short in the wire between the No. 1
terminal of the shift lock solenoid and the driver’s
under-dash fuse/relay box.

20. Connect the No. 1 terminal of the shift lock solenoid

connector to the battery positive terminal, and
connect the No. 2 terminal to the battery negative
terminal.

NOTE: Do not connect the No. 2 terminal to the
battery positive terminal or you will damage the
diode inside the shift lock solenoid.

21. Check the shift lock solenoid operation.

Check for a loose multiplex control unit

(driver’s) connector. If necessary, substitute a
known-good multiplex control unit (driver’s) and
recheck.

Replace the shift lock solenoid (see page 14-

186).

Wire side of female terminals

Terminal side of male terminals

Is ther e continuity?

Is ther e batter y voltage?

Does the shif t lock solenoid oper ate pr oper ly?

03/07/29 09:34:13 61S0X050_140_0184

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