RM38N0EC _58 Vehicle Interior _111835 METER / GAUGE / DISPLAY _0504957 METER / GAUGE SYSTEM(for Optitron Meter Type) J

METER / GAUGE / DISPLAY  METER / GAUGE SYSTEM(for Optitron Meter Type)  Steering Pad Switch Circuit  


DESCRIPTION

The combination meter assembly and steering pad switch assembly are connected via direct line. The multi-information display in the combination meter assembly is operated using the switches of the steering pad switch assembly.

WIRING DIAGRAM

E513164E01
5.229,2.177 5.542,2.375 0.313,0.198 10 false E17 5.219,2.344 7.083,2.802 1.865,0.458 10 false Combination Meter Assembly 1.115,6.5 4.938,6.698 3.823,0.198 10 false Spiral Cable Sub-assembly 3.885,6.49 6.073,6.802 2.188,0.313 10 false Steering Pad Switch Assembly 1.229,7.781 1.604,7.99 0.375,0.208 10 false E137 1.229,7.958 6.583,8.156 5.354,0.198 10 false Navigation Receiver Assembly 1.021,9.302 4.542,9.5 3.521,0.198 10 false Radio and Display Receiver Assembly 0.552,7.448 0.865,7.646 0.313,0.198 10 false *1 0.563,8.667 0.875,8.865 0.313,0.198 10 false *2 4.865,9 6.833,9.333 1.969,0.333 10 false *1: w/ Navigation System 4.865,9.344 6.948,9.656 2.083,0.313 10 false *2: w/o Navigation System 5.313,1.667 5.698,1.875 0.385,0.208 10 false MSTI 5.313,1.208 5.781,1.406 0.469,0.198 10 false MSM+ 6.302,0.76 6.917,0.958 0.615,0.198 10 false 5 V 5.042,1.208 5.656,1.406 0.615,0.198 10 false 29 5.042,1.646 5.25,1.844 0.208,0.198 10 false 30 1.26,3.229 1.875,3.427 0.615,0.198 10 false +DP2 1.26,3.75 1.875,3.948 0.615,0.198 10 false +DP 0.875,3.344 1.177,3.531 0.302,0.188 10 false E20 2.792,3.115 3.406,3.313 0.615,0.198 10 false 5 2.802,3.646 3.417,3.844 0.615,0.198 10 false 4 0.938,5.719 1.552,5.917 0.615,0.198 10 false 4 2.74,5.938 3.052,6.115 0.313,0.177 10 false z10 2.75,5.719 3.365,5.917 0.615,0.198 10 false 10 0.906,3.125 1.521,3.323 0.615,0.198 10 false 10 0.906,3.646 1.521,3.844 0.615,0.198 10 false 11 4.146,4.396 4.76,4.594 0.615,0.198 10 false OK 5.417,4.406 6.031,4.604 0.615,0.198 10 false LEFT 4.063,4.958 4.677,5.156 0.615,0.198 10 false BACK 5.354,5.51 5.969,5.708 0.615,0.198 10 false DOWN 5.479,4.958 6.094,5.156 0.615,0.198 10 false UP 5.375,6.073 5.99,6.271 0.615,0.198 10 false RIGHT 1.396,7.448 2.01,7.646 0.615,0.198 10 false 20 2.75,7.448 3.365,7.646 0.615,0.198 10 false 1 1.646,7.542 2.052,7.729 0.406,0.188 10 false SWG 2.271,7.542 2.719,7.74 0.448,0.198 10 false GND1 1.646,8.75 2.021,8.938 0.375,0.188 10 false SWG 2.271,8.75 2.708,8.938 0.438,0.188 10 false GND1 1.26,5.813 1.719,6.01 0.458,0.198 10 false EAU 0.875,3.865 1.156,4.052 0.281,0.188 10 false E20 0.875,5.948 1.167,6.146 0.292,0.198 10 false E20 2.729,3.844 3.01,4.052 0.281,0.208 10 false z10 2.729,3.323 3.031,3.521 0.302,0.198 10 false z10 1.385,8.667 2,8.865 0.615,0.198 10 false 20 2.75,8.635 3.365,8.833 0.615,0.198 10 false 1 1.031,9.115 1.406,9.323 0.375,0.208 10 false E137

CAUTION / NOTICE / HINT

NOTICE:

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.


PROCEDURE

1.PERFORM ACTIVE TEST USING GTS
a.

Perform the Active Test according to the display on the GTS.

Body Electrical > Combination Meter > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Multi Switch (Up) Performs the same operation as pressing the up switch on steering pad switch OFF or ON -
Multi Switch (Down) Performs the same operation as pressing the down switch on steering pad switch OFF or ON -
Multi Switch (Left) Performs the same operation as pressing the left switch on steering pad switch OFF or ON -
Multi Switch (Right) Performs the same operation as pressing the right switch on steering pad switch OFF or ON -
Multi Switch (Enter) Performs the same operation as pressing the OK switch on steering pad switch OFF or ON -
Multi Switch (Back) Performs the same operation as pressing the back switch on steering pad switch OFF or ON -
Body Electrical > Combination Meter > Active Test
Tester Display
Multi Switch (Up)
50004 409 316
Body Electrical > Combination Meter > Active Test
Tester Display
Multi Switch (Down)
50004 409 317
Body Electrical > Combination Meter > Active Test
Tester Display
Multi Switch (Left)
50004 409 318
Body Electrical > Combination Meter > Active Test
Tester Display
Multi Switch (Right)
50004 409 319
Body Electrical > Combination Meter > Active Test
Tester Display
Multi Switch (Enter)
50004 409 320
Body Electrical > Combination Meter > Active Test
Tester Display
Multi Switch (Back)
50004 409 321

Result:
Result Proceed to
Active Test can be performed correctly A
Active Test cannot be performed correctly B



A

2.READ VALUE USING GTS

B

REPLACE COMBINATION METER ASSEMBLY

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


2.READ VALUE USING GTS
a.

Read the Data List according to the display on the GTS.

Body Electrical > Combination Meter > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Multi Switch (Up) Up switch on steering pad switch operation OFF or ON OFF: Switch released
ON: Switch pushed 		-
Multi Switch (Down) Down switch on steering pad switch operation OFF or ON OFF: Switch released
ON: Switch pushed 		-
Multi Switch (Left) Left switch on steering pad switch operation OFF or ON OFF: Switch released
ON: Switch pushed 		-
Multi Switch (Right) Right switch on steering pad switch operation OFF or ON OFF: Switch released
ON: Switch pushed 		-
Multi Switch (Enter) OK switch on steering pad switch operation OFF or ON OFF: Switch released
ON: Switch pushed 		-
Multi Switch (Back) Back switch on steering pad switch operation OFF or ON OFF: Switch released
ON: Switch pushed 		-
Body Electrical > Combination Meter > Data List
Tester Display
Multi Switch (Up)
Multi Switch (Down)
Multi Switch (Left)
Multi Switch (Right)
Multi Switch (Enter)
Multi Switch (Back)
50003 409 12,13,14,15,16,17

Result:
Result Proceed to
The value of the Data List item is correct, and the combination meter assembly operates correctly A
The value of the Data List item is correct, but the combination meter assembly does not operate correctly B
The Data List item changes correctly C



A

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


B

REPLACE COMBINATION METER ASSEMBLY

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


C

3.INSPECT STEERING PAD SWITCH ASSEMBLY
5.CHECK COMBINATION METER ASSEMBLY (OUTPUT VOLTAGE)
E383900C36
1.51,0.177 1.927,0.406 0.417,0.229 0.823,1.719 1.49,1.375 true 2.708,1.875 1.76,1.385 true 0.448,1.708 0.927,2.083 0.479,0.375 10 false +DP2 2.74,1.865 3.25,2.094 0.51,0.229 10 false +DP 0.094,0.073 0.573,0.448 0.479,0.375 10 false *a 1.594,0.188 1.906,0.396 0.313,0.208 10 false E20
*a Front view of wire harness connector
(to Spiral Cable Sub-assembly)


a.

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

E20-10 (+DP2) - Body ground Ignition switch ON 4.8 to 5.2 V
E20-11 (+DP) - Body ground Ignition switch ON 4.8 to 5.2 V



Result:
Proceed to
OK
NG



OK

6.CONFIRM MODEL

NG

9.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY)
6.CONFIRM MODEL
a.

Choose the model to be inspected.


Result:
Result Proceed to
w/ Navigation System A
w/o Navigation System B



A

7.CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY AND BODY GROUND)

B

8.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY AND BODY GROUND)
7.CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY AND BODY GROUND)
a.

Disconnect the E137 navigation receiver assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E137,E20)Location & Routing

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

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

E137-20 (SWG) - E20-4 (EAU) Always Below 1 Ω
E137-1 (GND1) - Body ground Always Below 1 Ω



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

8.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY AND BODY GROUND)
a.

Disconnect the E137 radio and display receiver assembly connectors.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E137,E20)Location & Routing

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

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

E137-20 (SWG) - E20-4 (EAU) Always Below 1 Ω
E137-1 (GND1) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO RECEIVER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY)
a.

Disconnect the E17 combination meter assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E20,E17)Location & Routing

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

Click Connector(E17)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Combination Meter Assembly

E20-11 (+DP) - E17-29 (MSM+) Always Below 1 Ω
E20-10 (+DP2) - E17-30 (MSTI) Always Below 1 Ω
E20-11 (+DP) or E17-29 (MSM+) - Body ground Always 10 kΩ or higher
E20-10 (+DP2) or E17-30 (MSTI) - 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