Content .. 509 510 511 512 ..

Honda Odyssey 2004. Manual - part 511

−

＊１２

＊１３

YES

22-372

Navigation System

Symptom Troubleshooting (cont’d)

NAVIGATION UNIT CONNECTOR B (16P)

MUTE (WHT/BLK)

AUDIO UNIT
20P CONNECTOR

NAVIGATION UNIT CONNECTOR B (16P)

AUDIO UNIT
20P CONNECTOR

GND RG (ORN)

10. Check for continuity between navigation unit

connector B (16P) terminal No. 3 and the audio unit
20P connector terminal No. 14.

Go to step 11.

Repair open in the wire between the

navigation unit and the audio unit.

11. Check for continuity between navigation unit

connector B (16P) terminal No. 10 and the audio
unit 20P connector terminal No. 11.

Go to step 12.

Repair open in the wire between the

navigation unit and the audio unit.

12. Substitute a known-good audio unit and recheck.

Replace the audio unit (see page 22-342).

Replace the navigation unit

(see page 22-384).

Wire side of female terminals

Is ther e continuity?

Is the system OK ?

03/07/29 10:28:44 61S0X050_220_0374

−

１０

＊１４

Ｓ０Ｘ４Ａ８２Ｊ３６１００００００００ＦＡＡＴ１５

Vehicle position wanders on the map

Vehicle Speed Pulse (VSP) Check

YES

22-373

NAVIGATION UNIT CONNECTOR C (8P)

VSP

07LAJ-PT3020A

NOTE:

• Always check the connectors for poor connections or

loose terminals.

• Before troubleshooting, write down the customer’s

radio station presets, and get the radio and
navigation system anti-theft codes.

• After troubleshooting, enter the radio and navigation

system anti-theft codes, and the radio station presets.

Before testing, inspect the No. 6 (15A) fuse in the driver’s
under-dash fuse/relay box.

1. Start the engine.

2. Perform the Car Status test under ‘‘Unit Check’’ in

the System Diagnosis Menu (see page 22-376).

Replace the navigation unit.

Go to step 3.

3. Turn the ignition switch OFF.

4. Raise the front of the vehicle, and make sure it is

securely supported.

5. Put the vehicle in neutral with the ignition switch

ON (II).

6. Measure the voltage between body ground and

navigation unit connector C (8P) terminal No. 6.

7. Slowly rotate one wheel with the other wheel

blocked.

Replace the navigation unit.

’02-04 models: Go to step 8.

’00-01 models: Go to step 9.

8. Check the speedometer and cruise control.

Repair open or short in the wire between the

PCM and the navigation unit.

Troubleshoot the VSS circuit.

9. Turn the ignition switch OFF.

10. Disconnect the 3P connector from the vehicle

speed pulse (VSP) sensor (A).

11. Connect the test harness only to the engine wire

harness.

12. Connect the RED test harness clip (B) to the positive

probe of an ohmmeter, and the negative probe to
body ground. Cover the white (C) and green (D) test
harness with protective tape (E).

(cont’d)

Wire side of female terminals

Is ther e vehicle speed pulse signal?

Does voltage pulse f r om 0 to appr ox. 5 V ?

Does the speedometer and cr uise contr ol f unction
nor mally?

03/07/29 10:28:45 61S0X050_220_0375

−

１１

１２

１３

YES

22-374

Navigation System

Symptom Troubleshooting (cont’d)

07LAJ-PT3020A

13. Check for continuity between the RED test harness

clip and body ground.

Go to step 14.

Repair open in the BLK wire between the VSP

and G101.

14. Connect the WHT test harness clip (A) to the

positive probe of a voltmeter, and connect the RED
test harness clip (B) to the negative probe.

15. Turn the ignition switch ON (II).

Go to step 16.

Repair open in the BLK/YEL wire between the

VSP and the driver’s under-dash fuse/relay box.

16. Turn the ignition switch OFF.

17. Disconnect the navigation unit connector C (8P)

from the navigation unit.

18. Disconnect the WHT and RED test harness clips.

19. Connect the GRN test harness clip (A) to the

positive probe of the ohmmeter.

20. Check for continuity between the GRN test harness

clip and body ground.

Repair short in the BLU/WHT wire between

the VSP and the navigation unit.

Go to step 21.

21. Reconnect the navigation unit connector C (8P).

22. Turn the ignition switch ON (II).

23. Connect the GRN test harness clip (A) to the

positive probe of a voltmeter, and connect the RED
test harness clip (B) to negative probe.

Replace the VSP.

Repair open in the BLU/WHT wire between

the VSP and the navigation unit.

Is ther e continuity?

Is ther e batter y voltage?

Is ther e continuity?

Is ther e 5 V ?

03/07/29 10:28:46 61S0X050_220_0376

−

Yaw Rate Sensor Check

Example

Car stopped:

Normal

Abnormal

Offset

2.526 V

Offset

2.526 V

Sensor

2.516

2.536 V

Sensor

2.623 V

Car turning:

Normal

Abnormal

Offset

2.526 V

Offset

2.526 V

Sensor

2.678 V

Right Turn

2.479 V

Left Turn

Sensor

2.525 V

no change

on turns

22-375

1. Perform the start-up procedure (see page 22-376).

2. Select yaw rate.

3. The yaw rate offset and sensor should indicate

1.500 to 3.500 V with the vehicle stopped. If either is
zero or five volts (0.00 V or 5.00 V), replace the
navigation unit.

4. The yaw rate offset and sensor should be within

0.01 V of each other with the vehicle stopped.

The sensor value should change relative to offset
as the car is turned while driving. If not, replace the
navigation unit.

(

)

(

)

(

)

NOTE: The next check will need to be done as the
vehicle is driven. You may want to save this test
until last. Have a helper monitor the screen as the
vehicle is driven.

5. Select tuning.

6. Test drive the vehicle on a straight section of

highway. While driving the vehicle, monitor the
RED ARROW SHAPED ICON on the ‘‘Tuning’’
screen. Just under the icon you will see term
‘‘ANG-Disp’’ with an angle degree number written
under it (for example:

4°).

The icon will leave a trail of ‘‘BREAD CRUMBS’’ as
it moves across the screen from left to right. It takes
approximately 1/2 mile to cover the screen.

As you drive the vehicle, the angle degree number
should be 0° (

3°). If after 1/2 mile the number

exceeds 0° (

3°), replace the navigation unit.

NOTE: This test relies on the vehicle being driven
perfectly straight for 1/2 mile. If this not possible,
the results of this test will be false. When possible
compare your results to a known-good vehicle.

03/07/29 10:28:46 61S0X050_220_0377

Content .. 509 510 511 512 ..