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Honda Odyssey 2004. Manual - part 42

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０１

０５

＊０１

０２

０６

０３

1999-2000 models:

2001 model:

2002-2004 models:

YES

1999-2000 models:

2001 model:

2002-2004 models:

YES

6-8

Cylinder Head

DTC Troubleshooting (cont’d)

PCM CONNECTOR C (31P)

VTPSW
(BLU/BLK)

VTEC SOLENOID VALVE HARNESS
1P CONNECTOR

PCM CONNECTOR
B (24P)

VTS (GRN/YEL)

PCM CONNECTOR A (31P)

VTM (BLU/BLK)

PCM CONNECTOR C (31P)

VTPSW
(BLU/BLK)

VTEC SOLENOID VALVE HARNESS
1P CONNECTOR

PCM CONNECTOR
B (25 P)

VTS (GRN/YEL)

VTEC SOLENOID VALVE HARNESS
1P CONNECTOR

PCM CONNECTOR
B (25 P)

VTS (GRN/YEL)

23. With the battery positive terminal still connected to

the VTEC solenoid valve, measure voltage between
PCM connector terminal C10 (1999-2000, 2002-2004
models) or A20 (2001 model) and body ground.

Go to step 24.

Replace the VTEC oil pressure switch.

24. Turn the ignition switch OFF.

25. Disconnect the battery positive terminal from the

VTEC solenoid valve terminal.

26. Check for continuity between the VTEC solenoid

valve harness 1P connector terminal and PCM
connector terminal B12 (1999-2000, 2002-2004
models) or B2 (2001 model).

Go to step 27.

Repair an open in the wire between the PCM

connector terminal B12 (1999-2000, 2002-2004
models) orB2 (2001 model) and VTEC solenoid
valve connector.

Wire side of female terminals

Is ther e batter y voltage above 4,000 r pm?

Is ther e continuity?

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０８

YES

6-9

VTEC SOLENOID VALVE HARNESS
1P CONNECTOR

27. Check for continuity between the VTEC solenoid

valve 1P connector terminal and body ground.

Repair a short in the wire between the PCM

connector terminal B12 (1999-2000, 2002-2004
models) or B2 (2001 model) and VTEC solenoid
valve connector.

Substitute a known-good PCM and recheck

(see page 11-5). If symptom/indication goes away,
replace the original PCM (see page 11-4).

Wire side of female terminal

Is ther e continuity?

03/07/29 09:10:35 61S0X050_060_0009

−

＊０１

＊０２

＊０３

Ｓ０Ｘ４Ａ００Ａ１４６６６３６３４２１ＦＥＡＴ００

Resistance: 14

6-10

Cylinder Head

VTEC Solenoid Valve Test

8 x 1.25 mm
22 N·m (2.2 kgf·m, 16 lbf·ft)

6 x 1.0 mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)

22 N·m (2.2 kgf·m,
16 lbf·ft)

1. Disconnect the 1P connector from the VTEC

solenoid valve.

2. Measure resistance between the terminal and body

ground.

3. If the resistance is within specifications, remove the

VTEC solenoid valve/oil filter assembly (A) from the
oil pump, and check the VTEC solenoid valve filter
(B) for clogging. If there is clogging, replace the
engine oil filter and the engine oil.

4. If the filter is not clogged, push the VTEC solenoid

valve with your finger and check its movement. If
the VTEC solenoid valve is OK, check the engine oil
pressure.

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＊０１

Ｓ０Ｘ４Ａ００Ａ１４６００００００００ＭＡＡＴ００

Compression Pressure
Above 930 kPa (9.5 kgf/cm , 135 psi)

Maximum Variation:
Within 200 kPa (2.0 kgf/cm , 28 psi)

6-11

Engine Compression Inspection

1. Warm up the engine to normal operating

temperature (cooling fan comes on).

2. Turn the ignition switch OFF.

3. Remove the ACGS (15A) fuse from the under-hood

fuse/relay box.

4. Start the engine and let it run until it stalls.

5. Remove the six ignition coils (see page 4-17).

6. Remove the six spark plugs.

7. Attach the compression gauge to a spark plug hole.

8. Connect a tachometer.

9. Open the throttle fully, then crank the engine with

the starter motor and measure the compression.

10. Perform the same measurement on the remaining

cylinders.

11. If the compression is not within specifications,

check the following items, then re-measure the
compression.

• Damaged or worn valves and seats
• Damaged cylinder head gasket
• Damaged or worn piston rings
• Damaged or worn piston and cylinder bore

03/07/29 09:10:36 61S0X050_060_0011

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