RM35X0E _56 Audio / Visual / Telematics _078377 AUDIO / VIDEO _0383454 AUDIO AND VISUAL SYSTEM(for Radio Receiver Type) J

AUDIO / VIDEO  AUDIO AND VISUAL SYSTEM(for Radio Receiver Type)  Clock Communication Error  


WIRING DIAGRAM

E401193E05
5.521,2.688 7.156,2.938 1.635,0.25 10 false Radio Receiver Assembly 5.521,2.521 5.938,2.698 0.417,0.177 10 false O12 5.594,1.521 6.104,1.74 0.51,0.219 10 false CXPI 5.313,1.344 5.823,1.563 0.51,0.219 10 false 10 0.76,2.479 1.177,2.656 0.417,0.177 10 false N22 0.76,2.635 2.969,2.969 2.208,0.333 10 false Combination Meter Assembly 1.896,1.344 2.313,1.521 0.417,0.177 10 false 28 1.479,1.521 1.99,1.74 0.51,0.219 10 false CXPI 0.844,3.313 3.052,3.646 2.208,0.333 10 false : CXPI Communication Line

PROCEDURE

1.CHECK METER / GAUGE SYSTEM
a.

Check if the clock function operates normally.

OK:

The clock function operates normally.



Result:
Proceed to
OK
NG



OK

2.CHECK COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM)

NG

GO TO METER / GAUGE SYSTEM

Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


2.CHECK COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM)
a.
E401194C02
1.5,0.313 1.875,0.531 0.375,0.219 2.063,1.344 2.594,0.583 2.594,0.583 2.74,0.583 true 0.094,0.104 0.406,0.323 0.313,0.219 10 false *a 1.542,0.333 2,0.531 0.458,0.198 10 false O12 2.802,0.51 3.292,0.719 0.49,0.208 10 false CXPI 0.104,3.76 0.51,4.042 0.406,0.281 10 false GND
*a Front view of wire harness connector
(Radio Receiver Assembly)


Check the output waveform.

i.

Disconnect the radio receiver assembly connector.


ii.

Connect an oscilloscope to terminal O12-10 (CXPI) and body ground.


iii.

Turn the ignition switch to ON.


iv.

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

Item Condition
Measurement terminal O12-10 (CXPI) - Body ground
Tool setting 2 V/DIV., 20 μs./DIV.
Vehicle condition Ignition switch ON

OK:

The waveform is similar to that shown in the illustration.


HINT:

The waveform varies depending on the CXPI communication signal.




Result:
Proceed to
OK
NG



OK

REPLACE RADIO RECEIVER ASSEMBLY

Click here


NG

3.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)
3.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO RECEIVER ASSEMBLY)
a.

Disconnect the N22 combination meter assembly connector.


b.

Disconnect the O12 radio receiver assembly connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
N22-28 (CXPI) - O12-10 (CXPI) Always Below 1 Ω
N22-28 (CXPI) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE COMBINATION METER ASSEMBLY

Click hereVehicle Interior>METER / GAUGE / DISPLAY>COMBINATION METER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR