RM3660EC _56 Audio / Visual / Telematics _080752 NAVIGATION / MULTI INFO DISPLAY _0391865 NAVIGATION SYSTEM(for Gasoline Model with RST Switch) J

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM(for Gasoline Model with RST Switch)  Vehicle Speed Signal Circuit between Navigation Receiver Assembly and Combination Meter  


DESCRIPTION

Vehicle speed signals are received from the combination meter assembly and used to cancel "Bluetooth" function operation.

The navigation receiver assembly recognizes that the vehicle is being driven and makes it impossible to connect or register a "Bluetooth" device while driving.

HINT:
·

A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at the transistor in the combination meter assembly. Each ECU controls its respective system based on this pulse signal.

·

If a short occurs in any of the ECUs or in the wire harness connected to an ECU, all systems in the following diagram will not operate normally.



WIRING DIAGRAM

for Optitron Meter Type
E419027E03
1.542,0.271 2.688,0.531 1.146,0.26 10 false to Other Systems 2.115,1.417 2.427,1.615 0.313,0.198 10 false +S 2.427,1.292 2.74,1.49 0.313,0.198 10 false 36 4.573,1.313 4.885,1.51 0.313,0.198 10 false 17 4.823,1.417 5.271,1.635 0.448,0.219 10 false SPD 4.396,2.094 5.229,2.302 0.833,0.208 10 false I169 4.396,2.26 7.01,2.615 2.615,0.354 10 false Navigation Receiver Assembly 1.01,2.073 1.781,2.271 0.771,0.198 10 false I4 1.01,2.24 2.979,2.594 1.969,0.354 10 false Combination Meter Assembly

for TFT Meter Type
E419027E49
1.542,0.271 2.688,0.531 1.146,0.26 10 false to Other Systems 2.115,1.417 2.427,1.615 0.313,0.198 10 false +S 2.427,1.292 2.74,1.49 0.313,0.198 10 false 8 4.573,1.313 4.885,1.51 0.313,0.198 10 false 17 4.823,1.417 5.271,1.635 0.448,0.219 10 false SPD 4.396,2.094 5.229,2.302 0.833,0.208 10 false I169 4.396,2.26 7.01,2.615 2.615,0.354 10 false Navigation Receiver Assembly 1.01,2.073 1.781,2.271 0.771,0.198 10 false I5 1.01,2.24 2.979,2.594 1.969,0.354 10 false Combination Meter Assembly

PROCEDURE

1.CHECK MODEL
a.

Choose the model to be inspected.

Result:
Result Proceed to
for Optitron Meter Type A
for TFT Meter Type B




A

2.INSPECT COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM)

B

4.INSPECT COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM)
2.INSPECT COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM)
a.
E396774C26
1.448,0.188 1.948,0.5 0.5,0.313 0.698,2.052 1.083,1.521 true 0.573,2.063 0.885,2.26 0.313,0.198 10 false S+ 0.156,0.125 0.469,0.323 0.313,0.198 10 false *a 1.646,0.271 1.958,0.469 0.313,0.198 10 false I4 2.802,3.604 3.26,3.802 0.458,0.198 10 false GND
*a Component with harness connected
(Combination Meter Assembly)


Check the output waveform.

i.

Remove the combination meter assembly with the connector still connected.


ii.

Connect an oscilloscope to terminal I4-36 (+S) and body ground.


iii.

Turn the engine switch on (IG).


iv.

Turn a wheel slowly.


v.

Check the signal waveform according to the condition(s) in the table below.

Item Condition
Measurement terminal I4-36 (+S) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Vehicle condition Wheel being rotated

OK:

The waveform is similar to that shown in the illustration.


HINT:

When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.




Result:
Proceed to
OK
NG



OK

3.INSPECT NAVIGATION RECEIVER ASSEMBLY (INPUT WAVEFORM)

NG

GO TO METER / GAUGE SYSTEM

Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for Optitron Meter Type, Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING


3.INSPECT NAVIGATION RECEIVER ASSEMBLY (INPUT WAVEFORM)
a.

Check the input waveform.

E265791C64
1.646,0.271 2.063,0.531 0.417,0.26 2.604,1.844 2.406,1.406 false 0.177,0.146 0.49,0.344 0.313,0.198 10 false *a 1.719,0.313 2.344,0.677 0.625,0.365 10 false I169 2.5,1.854 2.813,2.052 0.313,0.198 10 false SPD 4.781,1.729 5.094,1.927 0.313,0.198 10 false A 6.167,1.469 6.594,1.688 0.427,0.219 10 false GND
*a Component with harness connected
(Navigation Receiver Assembly) 		- -


i.

Remove the navigation receiver assembly with the connector still connected.


ii.

Connect an oscilloscope to terminal I169-17 (SPD) and body ground.


iii.

Turn the engine switch on (IG).


iv.

Turn a wheel slowly.


v.

Check the signal waveform according to the condition(s) in the table below.

Item Condition
Measurement terminal I169-17 (SPD) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Vehicle condition Wheel being rotated

OK:

The waveform is similar to that shown in the illustration.


HINT:

When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.




Result:
Proceed to
OK
NG



OK

REPLACE NAVIGATION RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION RECEIVER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM)
a.
E396774C47
1.448,0.188 1.948,0.5 0.5,0.313 2.573,1.969 2.354,1.406 true 2.573,1.979 2.885,2.177 0.313,0.198 10 false S+ 0.156,0.125 0.469,0.323 0.313,0.198 10 false *a 1.646,0.271 1.958,0.469 0.313,0.198 10 false I5 2.802,3.604 3.26,3.802 0.458,0.198 10 false GND
*a Component with harness connected
(Combination Meter Assembly)


Check the output waveform.

i.

Remove the combination meter assembly with the connector still connected.


ii.

Connect an oscilloscope to terminal I5-8 (+S) and body ground.


iii.

Turn the engine switch on (IG).


iv.

Turn a wheel slowly.


v.

Check the signal waveform according to the condition(s) in the table below.

Item Condition
Measurement terminal I5-8 (+S) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Vehicle condition Wheel being rotated

OK:

The waveform is similar to that shown in the illustration.


HINT:

When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.




Result:
Proceed to
OK
NG



OK

5.INSPECT NAVIGATION RECEIVER ASSEMBLY (INPUT WAVEFORM)

NG

GO TO METER / GAUGE SYSTEM

Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for 12.3 Inch Display)>HOW TO PROCEED WITH TROUBLESHOOTING


5.INSPECT NAVIGATION RECEIVER ASSEMBLY (INPUT WAVEFORM)
a.

Check the input waveform.

E265791C64
1.646,0.271 2.063,0.531 0.417,0.26 2.604,1.844 2.406,1.406 false 0.177,0.146 0.49,0.344 0.313,0.198 10 false *a 1.719,0.313 2.344,0.677 0.625,0.365 10 false I169 2.5,1.854 2.813,2.052 0.313,0.198 10 false SPD 4.781,1.729 5.094,1.927 0.313,0.198 10 false A 6.167,1.469 6.594,1.688 0.427,0.219 10 false GND
*a Component with harness connected
(Navigation Receiver Assembly) 		- -


i.

Remove the navigation receiver assembly with the connector still connected.


ii.

Connect an oscilloscope to terminal I169-17 (SPD) and body ground.


iii.

Turn the engine switch on (IG).


iv.

Turn a wheel slowly.


v.

Check the signal waveform according to the condition(s) in the table below.

Item Condition
Measurement terminal I169-17 (SPD) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Vehicle condition Wheel being rotated

OK:

The waveform is similar to that shown in the illustration.


HINT:

When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.




Result:
Proceed to
OK
NG



OK

REPLACE NAVIGATION RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION RECEIVER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR