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Honda Odyssey 2004. Manual - part 181

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2001 Model

DTC P1751:

YES

14-118

Automatic Transmission

DTC Troubleshooting (cont’d)

Mechanical Problem in Hydraulic

Control System for Shift Solenoid Valve B
and A/T Clutch Pressure Control Solenoid
Valves A and B, or Problem in Hydraulic
Control System

NOTE:

• Record all freeze data and review General

Troubleshooting Information (see page 14-3) before
you troubleshoot.

• Keep replacement control solenoid valves on hand:

– Shift solenoid valve B
– A/T clutch pressure control solenoid valves A and B

1. Check whether the scan tool or the HDS indicates

another code.

Perform the Troubleshooting Flowchart for

the indicated Code(s). Recheck for code P1751 after
troubleshooting.

Go to step 2.

2. Turn the ignition switch OFF.

3. Replace the shift solenoid valve B (see page 14-

131) and A/T clutch pressure control solenoid
valves A and B (see page 14-133).

4. Clear the DTC with the scan tool or the HDS.

5. Drive the vehicle for several minutes in 1st, 2nd,

3rd, and 4th gears in D4 position.

6. Recheck for code P1751.

Replace the transmission.

The problem has been corrected.

Does the scan tool or the HDS indicate another
code?

Does the scan tool or the HDS indicate code
P17 51?

03/07/29 09:32:30 61S0X050_140_0121

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2001 Model

DTC P1753:

YES

14-119

LG1 (BRN/BLK)

LG2 (BRN/BLK)

A (31P)

C (22P)

PCM CONNECTORS

LC (YEL)

LG1 (BRN/BLK)

LG2 (BRN/BLK)

A (31P)

C (22P)

PCM CONNECTORS

LC (YEL)

LG1 (BRN/BLK)

LG2 (BRN/BLK)

PCM CONNECTOR A (31P)

Problem in Torque Converter

Clutch Solenoid Valve Circuit

NOTE:

• Record all freeze data and review General

Troubleshooting Information (see page 14-3) before
you troubleshoot.

• This code is caused by an electrical circuit problem

and cannot be caused by a mechanical problem in the
transmission.

1. Turn the ignition switch OFF.

2. Disconnect PCM connectors A (31P) and C (22P).

3. Turn the ignition switch ON (II).

4. Measure the voltage between PCM connector

terminals C10 and A25 or A26.

Repair short to power in the wire between

PCM connector terminal C10 and the torque
converter clutch solenoid valve.

Go to step 5.

5. Turn the ignition switch OFF.

6. Measure the resistance between PCM connector

terminals C10 and A25 or A26.

Go to step 11.

Go to step 7.

7. Check for continuity between PCM connector

terminal A25 and body ground, and between
terminal A26 and body ground.

Go to step 8.

Repair open in the wires between PCM

connector terminals A25 and A26, and ground
(G101), or repair poor ground (G101).

(cont’d)

Wire side of female terminals

Is ther e voltage?

Is ther e 12

Is ther e continuity?

03/07/29 09:32:31 61S0X050_140_0122

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＊０１

YES

14-120

Automatic Transmission

DTC Troubleshooting (cont’d)

LG1 (BRN/BLK)

LG2 (BRN/BLK)

A (31P)

C (22P)

PCM CONNECTORS

LC (YEL)

TORQUE CONVERTER CLUTCH SOLENOID
VALVE-SHIFT SOLENOID VALVE A
CONNECTOR (3P)

LC (BLU/YEL)

LG1 (BRN/BLK)

LG2 (BRN/BLK)

A (31P)

B (24P)

PCM CONNECTORS

VB SOL (BLK/YEL)

8. Disconnect the 3P connector from the torque

converter clutch solenoid valve-shift solenoid valve
A.

9. Check for continuity between PCM connector

terminals C10 and A25 or A26.

Repair short to ground in the wire between

PCM connector terminal C10 and the torque
converter clutch solenoid valve.

Go to step 10.

10. Measure the resistance between the No. 3 terminal

of the torque converter clutch solenoid valve-shift
solenoid valve A connector and body ground.

Check for an open in the wire between the

C10 terminal and the torque converter clutch
solenoid valve.

Replace the torque converter clutch solenoid

valve-shift solenoid valve A (see page 14-130).

11. Disconnect PCM connector B (24P).

12. Turn the ignition switch ON (II).

13. Measure the voltage between PCM connector

terminals B24 and A25 or A26.

Check for loose terminal fit in the PCM

connectors. If necessary, substitute a known-good
PCM and recheck.

Check for blown No. 6 (15A) fuse in the driver’s

under-dash fuse/relay box. If the fuse is OK, repair
open in the wire between PCM connector terminal
B24 and the driver’s under-dash fuse/relay box.

Wire side of female terminals

Terminal side of male terminals

Wire side of female terminals

Is ther e continuity?

Is ther e 12

Is ther e batter y voltage?

03/07/29 09:32:31 61S0X050_140_0123

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2001 Model

DTC P1768:

YES

14-121

A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE A CONNECTOR

PCM CONNECTORS

B (24P)

C (22P)

LS AP (RED)

LS AM (WHT)

PCM CONNECTORS

B (24P)

C (22P)

LS AP (RED)

LS AM (WHT)

Problem in A/T Clutch Pressure

Control Solenoid Valve A Circuit

NOTE:

• Record all freeze data and review General

Troubleshooting Information (see page 14-3) before
you troubleshoot.

• This code is caused by an electrical circuit problem

and cannot be caused by a mechanical problem in the
transmission.

1. Disconnect A/T clutch pressure control solenoid

valve A connector (2P).

2. Measure A/T clutch pressure control solenoid valve

A resistance at the solenoid valve A connector.

Go to step 3.

Replace the A/T clutch pressure control

solenoid valve A and B (see page 14-133).

3. Disconnect PCM connectors B (24P) and C (22P).

4. Check for continuity between PCM connector

terminal B7 and body ground, and between
terminal C1 and body ground.

Repair short to ground in the wires between

PCM connector terminals B7 and C1, and the A/T
clutch pressure control solenoid valve A.

Go to step 5.

5. Connect the A/T clutch pressure control solenoid

valve A connector.

6. Measure the resistance between PCM connector

terminals B7 and C1.

Go to step 7.

Repair loose terminal or open in the wires

between PCM connector terminals B7 and C1, and
the A/T clutch pressure control solenoid valve A.

(cont’d)

Terminal side of male terminals

Wire side of female terminals

Is the r esistance 3

Is ther e continuity?

Is ther e 3

03/07/29 09:32:32 61S0X050_140_0124

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