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Honda Odyssey 2004. Manual - part 598

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０１

０２

Ｓ０Ｘ４ＡＺＢＫ７９１０００ＲＡ２１ＸＦＡＡＴ００

’03-04 Models

DTC A2-1x (A2-10 to A2-19, A2-1A to A2-1F):

YES

23-334

SRS

DTC Troubleshooting (cont’d)

Faulty power supply (VB line)

1. Check the No. 2 (10A) fuse in the driver’s under-

dash fuse/relay box.

Go to step 11.

Go to step 2.

2. Replace the No. 2 (10A) fuse in the driver’s under-

dash fuse/relay box.

3. Turn the ignition switch ON (II) and wait for 30

seconds. Then turn the ignition switch OFF.

4. Check the No. 2 (10A) fuse in the driver’s under-

dash fuse/relay box.

The system is OK at this time.

Go to step 5.

5. Replace the No. 2 (10A) fuse in the driver’s under-

dash fuse/relay box.

6. Disconnect the battery negative cable.

7. Disconnect SRS unit connector A (28P) from the

SRS unit.

8. Reconnect the battery negative cable.

9. Turn the ignition switch ON (II) and wait for 30

seconds. Then turn the ignition switch OFF.

10. Check the No. 2 (10A) fuse in the driver’s under-

dash fuse/relay box.

Short to ground in the SRS unit; replace the

SRS unit (see page 23-384).

Short to ground in the driver’s under-dash

fuse/relay box No. 2 (10A) fuse line, short to ground
in the SRS main harness or SRS floor harness;
replace the driver’s under-dash fuse/relay box, or
faulty harness.

11. Turn the ignition switch OFF. Disconnect the

battery negative cable.

12. Disconnect SRS unit connector A (28P) from the

SRS unit.

Is the f use OK ?

03/07/29 10:41:21 61S0X050_230_0334

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YES

23-335

SRS UNIT CONNECTOR A (28P)

BLK/WHT

SRS UNIT CONNECTOR A (28P)

DRIVER’S
UNDER-DASH
FUSE/RELAY BOX
CONNECTOR N (2P)

BLK/WHT

C851

13. Reconnect the battery negative cable.

14. Connect a voltmeter between the No. 18 terminal of

SRS unit connector A (28P) and body ground. Turn
the ignition switch ON (II), and measure voltage.
There should be battery voltage.

Faulty SRS unit or poor contact at SRS unit

connector A (28P) and the SRS unit; check the
connection. If the connection is OK, replace the
SRS unit.

Go to step 15.

15. Turn the ignition switch OFF.

16. Disconnect driver’s under-dash fuse/relay box

connector N (2P).

17. Check resistance between the No. 2 terminal of

driver’s under-dash fuse/relay box connector N (2P)
and the No. 18 terminal of SRS unit connector A
(28P). There should be 0

1.0

Open in the driver’s under-dash fuse/relay

box or poor contact at driver’s under-dash fuse/
relay box connector N (2P) and the driver’s under-
dash fuse/relay box; check the connection. If the
connection is OK, replace the driver’s under-dash
fuse/relay box.

Go to step 18.

18. Disconnect SRS main harness 28P connector (A)

from the SRS floor harness connector C851.

(cont’d)

Wire side of female terminals

Is ther e batter y voltage?

Is the r esistance as specif ied?

03/07/29 10:41:22 61S0X050_230_0335

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＊０３

YES

23-336

SRS

DTC Troubleshooting (cont’d)

SRS MAIN HARNESS 28P
CONNECTOR C851

DRIVER’S
UNDER-DASH
FUSE/RELAY BOX
CONNECTOR N (2P)

BLK/WHT

19. Check resistance between the No. 2 terminal of

driver’s under-dash fuse/relay box connector N (2P)
and the No. 18 terminal of SRS main harness 28P
connector C851. There should be 0

1.0

Open in the SRS floor harness; replace the

SRS floor harness.

Open in the SRS main harness; replace the

SRS main harness.

Wire side of female terminals

Is the r esistance as specif ied?

03/07/29 10:41:23 61S0X050_230_0336

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０１

０２

Ｓ０Ｘ４ＡＺ４Ｈ４６４０００５６６０２ＦＡＡＴ００

’99-01 Models

SRS indicator doesn’t come on

YES

23-337

Symptom Troubleshooting

GAUGE ASSEMBLY CONNECTOR C (16P)

BLU

When the ignition key is turned to the ON (II) position,
the SRS control unit performs a self-test that takes
about 6 seconds. During the self-test, there is not any
voltage from the control unit going to the SRS indicator
circuit. This turns the indicator on. If the self-test is OK,
the control unit will send about 8.5 V to the SRS
indicator circuit. This turns the indicator off.

1. Turn the ignition switch ON (II), and check to see if

the other indicators come on (brake system, etc.).

Go to step 5.

Go to step 2.

2. Check the No. 9 (7.5A) fuse in the driver’s under-

dash fuse/relay box.

Go to step 4.

Go to step 3.

3. Replace the No. 9 (7.5A) fuse, and check to see if

the SRS indicator comes on.

The system is OK.

Go to step 4.

4. Check for an open in the wire harness between fuse

No. 9 (7.5A) and the gauge assembly, and repair it.
Check that the SRS indicator comes on.

The system is OK.

Go to step 5.

5. Turn the ignition switch OFF.

6. Remove the gauge assembly.

7. Check for a blown SRS indicator bulb.

Go to step 9.

Go to step 8.

8. Replace the bulb, and reconnect the gauge

assembly connectors. Then turn the ignition switch
ON (II).

The system is OK.

Go to step 9.

9. Turn the ignition switch OFF, and disconnect the

gauge assembly connector C (16P) from the gauge
assembly.

10. Connect a voltmeter between the No. 9 terminal

(

) of the gauge assembly connector C (16P) and

body ground.

(cont’d)

Wire side of female terminals

Do the other indicator s come on?

Is the f use OK ?

Does the SRS indicator come on?

Is the SRS indicator bulb OK ?

Does the SRS indicator come on?

03/07/29 10:41:23 61S0X050_230_0337

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