RM38N0EC _56 Audio / Visual / Telematics _111823 NAVIGATION / MULTI INFO DISPLAY _0502893 NAVIGATION SYSTEM J

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM  Illumination Circuit  


DESCRIPTION

Power is supplied to the navigation receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position.

WIRING DIAGRAM

E481222E01
1.198,0.656 3.49,0.854 2.292,0.198 10 false from PANEL Relay 0.385,4.031 4.667,4.229 4.281,0.198 10 false Steering Pad Switch Assembly 2.698,3.167 4.719,3.635 2.021,0.469 10 false Spiral Cable Sub-assembly 5.615,2.083 6.229,2.281 0.615,0.198 10 false 25 5.865,5.188 6.479,5.385 0.615,0.198 10 false GND1 5.271,6.021 7.135,6.469 1.865,0.448 10 false Navigation Receiver Assembly 5.615,5.073 6.229,5.271 0.615,0.198 10 false 1 5.26,5.854 5.719,6.052 0.458,0.198 10 false E137 2.708,3 3.021,3.198 0.313,0.198 10 false E20 3.938,2.646 4.552,2.844 0.615,0.198 10 false 9 3.896,2.083 4.51,2.281 0.615,0.198 10 false 14 3.365,2.083 3.979,2.281 0.615,0.198 10 false IL+2 3.365,2.646 3.979,2.844 0.615,0.198 10 false IL-2 5.854,2.198 6.469,2.396 0.615,0.198 10 false ILL+

CAUTION / NOTICE / HINT

NOTICE:

The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>PRECAUTION


PROCEDURE

1.CHECK ILLUMINATION
a.

Check if the illumination for the navigation receiver assembly, steering pad switch assembly, heater control switch or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the head or tail position.


Result:
Result Proceed to
Illumination comes on for all components except steering pad switch assembly. A
Illumination comes on for all components except navigation receiver assembly. B
No illumination comes on (navigation receiver assembly, hazard switch, heater control switch, etc.). C



A

2.CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

B

5.CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

C

GO TO LIGHTING SYSTEM

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


2.CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)
a.

Disconnect the E20 spiral cable sub-assembly connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(E20)Location & Routing

Click Connector(E20)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Spiral Cable Sub-Assembly

E20-14 (IL+2) - Body ground Ignition switch off
Light control switch in tail or head position 		11 to 14 V



Result:
Proceed to
OK
NG



OK

3.INSPECT STEERING PAD SWITCH ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.INSPECT STEERING PAD SWITCH ASSEMBLY
a.

Remove the steering pad switch assembly.

Click hereSteering>STEERING COLUMN>STEERING PAD SWITCH>REMOVAL


b.

Inspect the steering pad switch assembly.

Click hereSteering>STEERING COLUMN>STEERING PAD SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

4.INSPECT SPIRAL CABLE SUB-ASSEMBLY

NG

REPLACE STEERING PAD SWITCH ASSEMBLY

Click hereSteering>STEERING COLUMN>STEERING PAD SWITCH>REMOVAL


4.INSPECT SPIRAL CABLE SUB-ASSEMBLY
a.

Remove the spiral cable sub-assembly.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>SPIRAL CABLE>REMOVAL


b.

Inspect the spiral cable sub-assembly.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>SPIRAL CABLE>INSPECTION


Result:
Proceed to
OK
NG



OK

REPAIR OR REPLACE HARNESS OR CONNECTOR

NG

REPLACE SPIRAL CABLE SUB-ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>SPIRAL CABLE>REMOVAL


5.CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)
a.

Disconnect the E137 navigation receiver assembly connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(E137)Location & Routing

Click Connector(E137)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Navigation Receiver Assembly

E137-25 (ILL+) - Body ground Ignition switch off
Light control switch in tail or head position 		11 to 14 V



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR