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Honda Odyssey 2004. Manual - part 591

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１９

＊０９

２１

YES

23-306

SRS

DTC Troubleshooting (cont’d)

C503

SRS UNIT CONNECTOR B (28P)

BLU

C851

SRS UNIT CONNECTOR B (28P)

BLU

32. Disconnect SRS main harness 8P connector C503

from dashboard wire harness A.

33. Check resistance between the No. 27 terminal of

SRS unit connector B (28P) and body ground. There
should be an open circuit, or at least 1 M

Short to ground in dashboard wire harness

A; replace dashboard wire harness A.

Go to step 34.

34. Disconnect SRS floor harness 28P connector (A)

from the SRS main harness connector C851.

35. Check resistance between the No. 27 terminal of

SRS unit connector B (28P) and body ground. There
should be an open circuit, or at least 1 M

Short to ground in the SRS main harness;

replace the SRS main harness.

Short to ground in the SRS floor harness;

replace the SRS floor harness.

Wire side of female terminals

Is the r esistance as specif ied?

03/07/29 10:41:03 61S0X050_230_0306

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Ｓ０Ｘ４ＡＳＩＫ７９１０００Ｒ８５６１ＦＡＡＴ００

’03-04 Models

DTC 85-61:

DTC 85-62:

YES

23-307

WHT/RED

No Signal from the OPDS Unit

Non-stipulated Response Data

1. Make sure nothing is on the front passenger’s seat.

2. Erase the DTC memory (see page 23-38).

3. Initialize the OPDS unit (see page 23-41).

4. Read the DTC.

Go to step 5.

Intermittent failure, system is OK at this time.

Go to Troubleshooting Intermittent Failures (see
page 23-39).

5. Check the connection between the OPDS unit

harness 8P connector and the OPDS unit.

6. Erase the DTC.

7. Initialize the OPDS unit.

8. Read the DTC.

Go to step 9.

Repair the poor connections and retest. If DTC

85-61 or 85-62 is still present, go to step 9.

9. Turn the ignition switch OFF.

10. Check the No. 11 (10A) fuse in the driver’s under-

dash fuse/relay box.

Go to step 11.

Replace the fuse, then turn the ignition switch

ON (II). If the fuse blows again, check for a short in
the No. 11 (10A) fuse circuit (dashboard wire
harness, right side wire harness, passenger’s seat
wire harness (with seat heater), or OPDS unit
harness).

11. Disconnect the OPDS unit harness 8P connector D

from the OPDS unit.

12. Turn the ignition switch ON (II).

13. Check for voltage between the No. 4 terminal of the

OPDS unit harness 8P connector and body ground.
There should be battery voltage.

Go to step 18.

Go to step 14.

14. Turn the ignition switch OFF.

(cont’d)

Wire side of female terminals

Is DT C 85-61 or 85-62 indicated?

Is DT C 85-61, or 85-62 indicated?

Is the f use OK ?

Is ther e batter y voltage?

03/07/29 10:41:04 61S0X050_230_0307

OPDS UNIT HARNESS 8P CONNECTOR D

−

＊０２

０４

＊０３

０６

YES

23-308

SRS

DTC Troubleshooting (cont’d)

C505

YEL/GRN

OPDS UNIT HARNESS 8P CONNECTOR D

BLK

15. Disconnect dashboard wire harness A 21P

connector C505 from the right side wire harness.

16. Turn the ignition switch ON (II).

17. Check for voltage between the No. 4 terminal of

Open in the YEL/GRN wire of the right side

wire harness, passenger’s seat wire harness (with
seat heater), or OPDS unit harness; replace the
faulty harness.

Open in the YEL/GRN wire of the dashboard

wire harness; replace the faulty harness.

18. Turn the ignition switch OFF.

19. Check resistance between the No. 8 terminal of the

OPDS unit harness 8P connector D and body
ground. There should be 0

1.0

Go to step 20.

Open in the BLK wire of the right side wire

harness, passenger’s seat wire harness (with seat
heater), or OPDS unit harness; check for poor
ground connection at G581. If the connection is OK,
replace the faulty harness.

20. Turn the ignition switch OFF. Disconnect the

battery negative cable, and wait for 3 minutes.

21. Disconnect both seat belt tensioner 2P connectors

(A).

Wire side of female terminals

Is ther e batter y voltage?

Is the r esistance as specif ied?

03/07/29 10:41:05 61S0X050_230_0308

DASHBOARD WIRE HARNESS A 21P CONNECTOR C505

dashboard wire harness A 21P connector C505 and
body ground. There should be battery voltage.

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０８

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YES

23-309

SRS UNIT CONNECTOR B (28P)

BLU

OPDS UNIT HARNESS
8P CONNECTOR D

SRS UNIT
CONNECTOR B (28P)

BLU

22. Disconnect SRS unit connector B (28P) from the

SRS unit and connector C (6P) from the passenger’s
seat weight sensor unit.

23. Check resistance between the No. 27 terminal of

SRS unit connector B (28P) and body ground. There
should be an open circuit, or at least 1 M

Go to step 24.

Go to step 31.

24. Check resistance between the No. 27 terminal of

SRS unit connector B (28P) and the No. 7 terminal
of the OPDS unit harness 8P connector D. There
should be 0

1.0

Faulty OPDS unit or SRS unit; replace the

OPDS unit (see page 23-387). If the problem is still
present, replace the SRS unit (see page 23-382).

Go to step 25.

(cont’d)

Wire side of female terminals

Is the r esistance as specif ied?

03/07/29 10:41:05 61S0X050_230_0309

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