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Honda Odyssey 2004. Manual - part 109

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DTC P0301

’99-00, ’02-04 Models:

DTC P0302

’99-00, ’02-04 Models:

DTC P0303

’99-00, ’02-04 Models:

DTC P0304

’99-00, ’02-04 Models:

DTC P0305

’99-00, ’02-04 Models:

DTC P0306

’99-00, ’02-04 Models:

YES

11-134

PGM-FI System

DTC Troubleshooting (cont’d)

No. 1

Cylinder Misfire Detected

No. 2

Cylinder Misfire Detected

No. 3

Cylinder Misfire Detected

No. 4

Cylinder Misfire Detected

No. 5

Cylinder Misfire Detected

No. 6

Cylinder Misfire Detected

NOTE: Information marked with an asterisk ( ) applies
to ’02-04 models.

1. Remove the intake manifold cover and the ignition

2. After checking and recording the freeze data, reset

the PCM (see page 11-4). If there is no freeze data of
the misfire, just clear the DTC.

3. Start the engine, and listen for a clicking sound

from the injector at the problem cylinder.

Go to step 4.

Go to step 31.

4. Turn the ignition switch OFF.

5. Exchange the ignition coil from the problem

cylinder with one from another cylinder.

6. Test-drive the vehicle several times in the range of

the freeze data or under various conditions if there
was no freeze data.

7. Check for a DTC or Temporary DTC with the scan

tool or the HDS.

Go to step 8.

Intermittent misfire due to poor contact at the

ignition coil connector (no misfire at this time).

8. Determine which cylinder had the misfire.

Replace the faulty ignition coil.

Go to step 9.

9. Turn the ignition switch OFF.

10. Exchange the spark plug from the problem cylinder

with one from another cylinder.

11. Test-drive the vehicle several times in the range of

the freeze data or under various conditions if there
was no freeze data.

12.

scan tool or the HDS.

Go to step 13.

Intermittent misfire due to spark plug fouling,

etc. (no misfire at this time).

13. Determine which cylinder had the misfire.

Replace the faulty spark plug.

Go to step 14.

Does the injector click?

Is DT C P0301, P0302, P0303, P0304, P0305, or
P0306, or T empor ar y DT C P1399 indicated?

Does the misf ir e occur in the cylinder wher e the
ignition coil was exchanged?

Is DT C P0301, P0302, P0303, P0304, P0305, or
P0306, or T empor ar y DT C P1399 indicated?

Does the misf ir e occur in the cylinder wher e the
spar k plug was exchanged?

03/07/29 09:21:24 61S0X050_110_0134

coil cover (see steps 11 and 12 on page 6-36).

Check for a DTC or Temporary DTC with the

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＊０１

＊０２

YES

11-135

IGNITION COIL 3P CONNECTOR

IG
(BLK/YEL)

IGNITION COIL 3P CONNECTOR

GND
(BLK)

14. Turn the ignition switch OFF.

15. Exchange the injector from the problem cylinder

with one from another cylinder.

16. Let the engine idle for 2 minutes.

17. Test-drive the vehicle several times in the range of

the freeze data or under various conditions if there
was no freeze data.

18. Check for a DTC or a Temporary DTC with the scan

tool or the HDS.

Go to step 19.

Intermittent misfire due to bad contact in the

injector connector (no misfire at this time). Check
for poor connections or loose terminals at the
injector.

19. Determine which cylinder had the misfire.

Replace the faulty injector

(see page 11-177).

Go to step 20.

20. Turn the ignition switch OFF.

21. Disconnect the ignition coil 3P connector from the

problem cylinder.

22. Turn the ignition switch ON (II).

23. Measure voltage between ignition coil 3P

connector terminal No. 3 and body ground.

Go to step 24.

Repair open or short in the wire between the

No. 11 COIL (No. 7 on ’02-04 models) (15A) fuse
and the ignition coil.

24. Turn the ignition switch OFF.

25. Check for continuity between ignition coil 3P

connector terminal No. 2 and body ground.

Go to step 26.

Repair open in the wire between the ignition

coil and G101 (or G102).

26. Disconnect PCM connector C (31P).

(cont’d)

Wire side of
female terminals

Is DT C P0301, P0302, P0303, P0304, P0305, or
P0306, or T empor ar y DT C P1399 indicated?

Does the misf ir e occur in the cylinder wher e the
injector was exchanged?

Is ther e batter y voltage?

Is ther e continuity?

03/07/29 09:21:25 61S0X050_110_0135

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０１

＊０３

０２

YES

11-136

PGM-FI System

DTC Troubleshooting (cont’d)

PCM CONNECTOR C (31P)

IGPLS3 (BLU)

IGPLS1 (YEL/GRN)

IGPLS5
(BLK/
RED)

IGPLS6
(WHT/
BLU)

IGPLS4
(YEL)

IGPLS2
(RED)

IGPLS3 (WHT/BLU)*

IGPLS6
(BRN/
WHT)*

IGPLS4
(BRN)*

IGPLS2
(BLU/RED)*

IGPLS3 (BLU)

IGPLS1 (YEL/GRN)

IGPLS5
(BLK/
RED)

IGPLS6
(WHT/
BLU)

IGPLS4
(YEL)

IGPLS2
(RED)

IGPLS3 (WHT/BLU)*

IGPLS6
(BRN/
WHT)*

IGPLS4
(BRN)*

IGPLS2
(BLU/RED)*

PCM CONNECTOR C (31P)

IGNITION COIL 3P CONNECTOR

JUMPER WIRE

27. Check for continuity between body ground and the

PCM connector terminal (see table).

PROBLEM

CYLINDER

DTC

PCM

TERMINAL

WIRE

COLOR

No. 1

P0301

YEL/GRN

No. 2

P0302

C14

RED

(BLU/RED)

No. 3

P0303

BLU

(WHT/BLU)

No. 4

P0304

C13

YEL

(BRN)

No. 5

P0305

C12

BLK/RED

No. 6

P0306

C23

WHT/BLU

(BRN/WHT)

Repair short in the wire between the PCM

and the ignition coil.

Go to step 28.

28. Connect ignition coil 3P connector terminal No. 1

and body ground with a jumper wire (see table).

PROBLEM

CYLINDER

DTC

WIRE

COLOR

No. 1

P0301

YEL/GRN

No. 2

P0302

RED

No. 3

P0303

BLU

No. 4

P0304

BRN

No. 5

P0305

BLK/RED

No. 6

P0306

WHT/BLU

29. Check for continuity between body ground and the

PCM connector terminal (see table).

PROBLEM

CYLINDER

DTC

PCM

TERMINAL

WIRE

COLOR

No. 1

P0301

YEL/GRN

No. 2

P0302

C14

RED

(BLU/RED)

No. 3

P0303

BLU

(WHT/BLU)

No. 4

P0304

C13

YEL

(BRN)

No. 5

P0305

C12

BLK/RED

No. 6

P0306

C23

WHT/BLU

(BRN/WHT)

Wire side of female terminals

Is ther e continuity?

03/07/29 09:21:26 61S0X050_110_0136

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＊０４

＊０７

YES

11-137

PCM CONNECTOR B (25P)

INJ4 (YEL)

INJ2 (RED)

INJ5
(BLK/
RED)

INJ1
(BRN)

INJ3
(BLU)

INJ6
(WHT/
BLU)

INJECTOR 2P CONNECTOR

INJ

IGP

(’99-00 models: INJ)

(’99-00 models: IGP)

Go to step 30.

Repair open in the wire between the PCM and

the ignition coil.

30. Check the engine compression (see page 6-11).

Substitute a known-good PCM and recheck

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

Repair the engine.

31. Turn the ignition switch OFF.

32. Disconnect PCM connector B (25P).

33. Turn the ignition switch ON (II).

34. Measure voltage between body ground and the

PCM connector terminal (see table).

PROBLEM

CYLINDER

DTC

PCM

TERMINAL

WIRE

COLOR

No. 1

P0301

B11

BRN

No. 2

P0302

RED

No. 3

P0303

B15

BLU

No. 4

P0304

YEL

No. 5

P0305

BLK/RED

No. 6

P0306

WHT/BLU

Go to step 35.

Go to step 43.

35. Turn the ignition switch OFF.

36. Disconnect the injector 2P connector from the

problem cylinder.

37. Measure resistance between injector 2P connector

terminals No. 1 and No. 2.

Go to step 38.

Replace the injector (see page 11-177).

38. Exchange the injector from the problem cylinder

with one from another cylinder.

39. Let the engine idle for 2 minutes.

40. Test-drive the vehicle several times in the range of

the freeze data or under various conditions if there
was no freeze data.

41. Check for a DTC or a Temporary DTC with the scan

tool or the HDS.

Go to step 42.

Intermittent misfire due to injector

malfunction, etc. Make sure the injector
connections are secure. Check for poor conections
or loose terminals at the injector connectors.

(cont’d)

Wire side of female terminals

Terminal side of male terminals

Is ther e continuity?

Is the engine compr ession OK ?

Is ther e batter y voltage?

Is ther e 10

Is DT C P0301, P0302, P0303, P0304, P0305, or
P0306, or T empor ar y DT C P1399 indicated?

03/07/29 09:21:26 61S0X050_110_0137

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