RM36D0EC _58 Vehicle Interior _083097 METER / GAUGE / DISPLAY _0694857 METER / GAUGE SYSTEM(for GTMC Made) J

METER / GAUGE / DISPLAY  METER / GAUGE SYSTEM(for GTMC Made)  Speed Signal Circuit  


DESCRIPTION

w/ Smart Entry and Start System



The combination meter assembly receives the vehicle speed signal from this circuit. The wheel speed sensors produce an output that varies according to the vehicle speed. The wheel speed sensor output is received by the certification ECU (smart key ECU assembly) which uses this information to create the vehicle speed signal*a. The vehicle speed signal consists of pulses sent to the combination meter assembly from the certification ECU (smart key ECU assembly). To create this signal, 12 V is output from IG2 which is behind a resistor in the combination meter assembly. This voltage is sent to the certification ECU (smart key ECU assembly). The pulse signal is created by switching the transistor in the certification ECU (smart key ECU assembly) on and off, making the voltage on the wire drop to 0 V. A similar system is used for the output of this signal from the combination meter assembly via terminal +S. A voltage of 12 V or 5 V is applied to terminal +S from each ECU or relay that is connected to this terminal. The transistor in the combination meter assembly is controlled by the signal from the certification ECU (smart key ECU assembly). When this transistor is turned on, this transistor makes the voltage supplied by the various ECUs (via their respective internal resistors) drop to 0 V. Each ECU connected to terminal +S of the combination meter assembly controls its respective system based on this pulse signal.

*a: This vehicle speed signal is created by the certification ECU (smart key ECU assembly). There is no actual component that is referred to as the vehicle speed sensor. In addition, for some systems, vehicle speed information may be received via CAN communication.


HINT:

This circuit is used for the systems connected to terminal +S. This signal is not used for combination meter assembly operation. Combination meter assembly components such as the speedometer operate using data received via CAN communication.


w/o Smart Entry and Start System


The combination meter assembly receives the vehicle speed signal from this circuit. The wheel speed sensors produce an output that varies according to the vehicle speed. The wheel speed sensor output is received by the brake actuator assembly (skid control ECU) which uses this information to create the vehicle speed signal*a. The vehicle speed signal consists of pulses sent to the combination meter assembly from the brake actuator assembly (skid control ECU). To create this signal, 12 V is output from IG2 which is behind a resistor in the combination meter assembly. This voltage is sent to the brake actuator assembly (skid control ECU). The pulse signal is created by switching the transistor in the brake actuator assembly (skid control ECU) on and off, making the voltage on the wire drop to 0 V. A similar system is used for the output of this signal from the combination meter assembly via terminal +S. A voltage of 12 V or 5 V is applied to terminal +S from each ECU or relay that is connected to this terminal. The transistor in the combination meter assembly is controlled by the signal from the brake actuator assembly (skid control ECU). When this transistor is turned on, this transistor makes the voltage supplied by the various ECUs (via their respective internal resistors) drop to 0 V. Each ECU connected to terminal +S of the combination meter assembly controls its respective system based on this pulse signal.

*a: This vehicle speed signal is created by the brake actuator assembly (skid control ECU). There is no actual component that is referred to as the vehicle speed sensor. In addition, for some systems, vehicle speed information may be received via CAN communication.


HINT:

This circuit is used for the systems connected to terminal +S. This signal is not used for combination meter assembly operation. Combination meter assembly components such as the speedometer operate using data received via CAN communication.



WIRING DIAGRAM

w/ Smart Entry and Start System


for HV Model:
B719775E02
5.802,0.271 6.906,0.771 1.104,0.5 10 false from METER IGR Fuse 1.385,0.458 4.698,0.771 3.313,0.313 10 false Brake Actuator Assembly (No. 2 Skid Control ECU) 1.021,1.49 1.344,1.75 0.323,0.26 10 false 13 2.51,1.49 2.833,1.75 0.323,0.26 10 false 28 0.958,1.698 1.406,1.927 0.448,0.229 10 false A126 2.438,1.698 2.885,1.927 0.448,0.229 10 false G170 1.948,1.688 2.438,1.917 0.49,0.229 10 false SPDO 1.375,1.677 1.865,1.906 0.49,0.229 10 false SPD 0.76,2.208 4.073,2.521 3.313,0.313 10 false Certification ECU (Smart Key ECU Assembly) 5.094,3.802 5.542,4.031 0.448,0.229 10 false G151 5.083,3.99 7.063,4.229 1.979,0.24 10 false Combination Meter Assembly 5.396,0.99 5.719,1.25 0.323,0.26 10 false 6 5.333,1.583 5.656,1.844 0.323,0.26 10 false 25 5.385,3.083 5.708,3.344 0.323,0.26 10 false 8 5.583,3.094 5.906,3.354 0.323,0.26 10 false +S 5.583,1.583 5.906,1.844 0.323,0.26 10 false SI 5.594,0.979 5.917,1.24 0.323,0.26 10 false IG+ 1.719,3.104 2.208,3.333 0.49,0.229 10 false SPD 2.115,3.063 2.438,3.323 0.323,0.26 10 false 8 0.677,3.552 1.125,3.781 0.448,0.229 10 false G155 0.677,3.729 3.198,4.083 2.521,0.354 10 false Radio and Display Receiver Assembly*1 0.365,5.229 4.188,5.427 3.823,0.198 10 false *1: w/o Navigation System 0.667,4.021 5.25,4.219 4.583,0.198 10 false Navigation Receiver Assembly*2 2.344,5.219 6.01,5.417 3.667,0.198 10 false *2: w/ Navigation System

for Gasoline Model:
B708934E14
5.292,3.938 7.135,4.844 1.844,0.906 10 false Combination Meter Assembly 5.271,3.76 6.271,4.042 1,0.281 10 false G18*1, G151*2 5.594,1.552 5.906,1.75 0.313,0.198 10 false SI 4.833,1.521 5.76,1.771 0.927,0.25 10 false 20*1, 25*2 1.354,0.406 4.625,1.552 3.271,1.146 10 false Brake Actuator Assembly (Skid Control ECU) 0.719,2.104 7.135,2.302 6.417,0.198 10 false Certification ECU (Smart Key ECU Assembly) 1.99,1.625 2.604,1.823 0.615,0.198 10 false SPDO 1.385,1.646 1.844,1.844 0.458,0.198 10 false SPD 2.448,1.646 2.906,1.844 0.458,0.198 10 false G170 0.958,1.646 1.417,1.844 0.458,0.198 10 false A126 2.51,1.448 2.823,1.646 0.313,0.198 10 false 28 1,1.438 1.313,1.635 0.313,0.198 10 false 13 5.563,5.385 6.49,5.729 0.927,0.344 10 false ECM 5.604,4.771 6.219,4.969 0.615,0.198 10 false SPD 5.552,5.208 6.625,5.5 1.073,0.292 10 false A125 5.333,4.75 5.646,4.948 0.313,0.198 10 false 93 0.625,5.208 1.083,5.406 0.458,0.198 10 false G155 0.604,5.385 3.125,5.896 2.521,0.51 10 false Radio and Display Receiver Assembly 1.635,4.781 2.25,4.979 0.615,0.198 10 false SPD 2.031,4.781 2.344,4.979 0.313,0.198 10 false 8 5.615,3.052 5.927,3.25 0.313,0.198 10 false +S 4.906,3.031 5.698,3.26 0.792,0.229 10 false 36*1, 8*2 5.615,0.938 6.073,1.135 0.458,0.198 10 false IG+ 5.219,0.75 5.552,1.219 0.333,0.469 10 false 6*1, 38*2 5.813,0.188 6.896,0.698 1.083,0.51 10 false from Engine Stop and Start ECU 0.25,6 3.583,6.479 3.333,0.479 10 false *1: for 4.2 Inch Multi-information Display Type 0.25,6.354 3.583,6.833 3.333,0.479 10 false *2: for 12.3 Inch Multi-information Display Type


w/o Smart Entry and Start System


B671060E11
5.031,2.99 6.958,3.5 1.927,0.51 10 false Combination Meter Assembly 5.031,2.823 5.646,3.021 0.615,0.198 10 false G18 5.469,2.438 5.781,2.635 0.313,0.198 10 false +S 5.208,2.344 5.573,2.917 0.365,0.573 10 false 36 5.479,0.469 5.792,0.667 0.313,0.198 10 false SI 5.219,0.396 5.531,0.594 0.313,0.198 10 false 20 0.125,1.208 3.271,1.51 3.146,0.302 10 false Brake Actuator Assembly (Skid Control ECU) 0.135,0.99 0.75,1.188 0.615,0.198 10 false A39 1.813,0.385 2.125,0.583 0.313,0.198 10 false 34 1.438,0.396 1.896,0.594 0.458,0.198 10 false SP1 0.979,2.979 1.854,3.74 0.875,0.76 10 false ECM 0.802,2.781 1.26,2.979 0.458,0.198 10 false A125 1.417,2.354 1.875,2.552 0.458,0.198 10 false SPD 1.813,2.354 2.146,2.625 0.333,0.271 10 false 93 4.729,4.885 7.115,5.333 2.385,0.448 10 false Radio and Display Receiver Assembly 4.74,4.688 5.354,4.885 0.615,0.198 10 false G155 5.479,4.385 5.938,4.583 0.458,0.198 10 false SPD 5.25,4.385 5.5,4.698 0.25,0.313 10 false 8


CAUTION / NOTICE / HINT

NOTICE:
·

Before replacing the certification ECU (smart key ECU assembly) refer to Service Bulletin.*

*: w/ Smart Entry and Start System

·

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.CHECK VEHICLE TYPE
a.

Check vehicle condition.


Result:
Result Proceed to
w/ Smart Entry and Start System A
w/o Smart Entry and Start System B



A

2.CHECK DTC (SMART ENTRY AND START SYSTEM)

B

12.CHECK ECU TERMINAL VOLTAGE (INPUT VOLTAGE)
2.CHECK DTC (SMART ENTRY AND START SYSTEM)
a.

Check if smart entry and start system DTCs are output.

Body Electrical > Power Source Control > Trouble Codes
50001 454

Result:
Proceed to
OK
NG



OK

3.INSPECT ECU TERMINAL VOLTAGE (INPUT VOLTAGE)

NG

GO TO SMART ENTRY AND START SYSTEM

for HV Model: Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, HV Model)>DIAGNOSTIC TROUBLE CODE CHART

for Gasoline Model: Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model)>DIAGNOSTIC TROUBLE CODE CHART


3.INSPECT ECU TERMINAL VOLTAGE (INPUT VOLTAGE)

*1: for 12.3 Inch Multi-information Display Type

*2: for 4.2 Inch Multi-information Display Type


a.

Disconnect the G151*1 or G18*2 combination meter assembly connector.


b.

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

Standard Voltage:
for 12.3 Inch Multi-information Display Type
Tester Connection Switch Condition Specified Condition
G151-8 (+S) - Body ground Ignition switch ON 4.5 to 14 V

for 4.2 Inch Multi-information Display Type
Tester Connection Switch Condition Specified Condition
G18-36 (+S) - Body ground Ignition switch ON 4.5 to 14 V


HINT:

If any of the ECUs specified in the wiring diagram supplies power to the combination meter assembly, the combination meter assembly will output a waveform.



Result:
Proceed to
OK
NG



OK

4.INSPECT COMBINATION METER ASSEMBLY

NG

6.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - EACH ECU)
4.INSPECT COMBINATION METER ASSEMBLY
HINT:

This procedure is performed to check the diode inside the combination meter assembly.


a.

Remove the combination meter assembly.

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


b.

Measure the internal resistance of the combination meter assembly.

Standard Resistance:
for 12.3 Inch Multi-information Display Type
Tester Connection Tester Connection Condition Measured Value
G151-6 (IG+) - G151-25 (SI)
·

Positive (+) tester probe → G151-6 (IG+)

·

Negative (-) tester probe → G151-25 (SI)


Always A
G151-6 (IG+) - G151-25 (SI)
·

Positive (+) tester probe → G151-25 (SI)

·

Negative (-) tester probe → G151-6 (IG+)


Always B

for 4.2 Inch Multi-information Display Type
Tester Connection Tester Connection Condition Measured Value
G18-36 (IG+) - G18-20 (SI)
·

Positive (+) tester probe → G18-36 (IG+)

·

Negative (-) tester probe → G18-20 (SI)


Always A
G18-36 (IG+) - G18-20 (SI)
·

Positive (+) tester probe → G18-20 (SI)

·

Negative (-) tester probe → G18-36 (IG+)


Always B



OK:

There is a large difference between the measured value (A) and the measured value (B).


Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - SKID CONTROL ECU ASSEMBLY)

NG

REPLACE COMBINATION METER ASSEMBLY

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


5.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - SKID CONTROL ECU ASSEMBLY)

*1: for 12.3 Inch Multi-information Display Type

*2: for 4.2 Inch Multi-information Display Type


a.

Disconnect the G151*1 or G18*2 combination meter assembly connector.


b.

Disconnect the G170 certification ECU (smart key ECU assembly) connector.


c.

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

Standard Resistance:
for 12.3 Inch Multi-information Display Type
Tester Connection Condition Specified Condition
G151-25 (SI) - G170-28 (SPDO) Always Below 1 Ω
G151-25 (SI) - Other terminals and body ground Always 10 kΩ or higher

for 4.2 Inch Multi-information Display Type
Tester Connection Condition Specified Condition
G18-20 (SI) - G170-28 (SPDO) Always Below 1 Ω
G18-20 (SI) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - EACH ECU)

*1: w/o Navigation System

*2: w/ Navigation System

*3: for Gasoline Model


a.

Disconnect the G151 combination meter assembly connector.


b.

Disconnect the G155 radio and display receiver assembly connector.*1


c.

Disconnect the G155 navigation receiver assembly connector.*2


d.

Disconnect the A125 ECM connector.*3


e.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G151-8 (+S) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

7.CHECK VEHICLE TYPE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.CHECK VEHICLE TYPE
a.

Check vehicle condition.


Result:
Result Proceed to
for Gasoline Model A
for HV Model B



A

8.INSPECT ECM (SHORT CIRCUIT IN ECM)

B

10.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY (SHORT CIRCUIT IN RADIO AND DISPLAY RECEIVER ASSEMBLY)
8.INSPECT ECM (SHORT CIRCUIT IN ECM)
a.

Disconnect the G151 combination meter assembly connector.


b.

Disconnect the A125 ECM connector.


c.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
G151-8 (+S) - Body ground Ignition switch ON 4.5 to 14 V


HINT:

If the result is as specified, there may be a short circuit in the stereo component amplifier assembly.



Result:
Proceed to
OK
NG



OK

9.CHECK VEHICLE TYPE

NG

REPLACE ECM

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>ECM>REMOVAL


9.CHECK VEHICLE TYPE
a.

Check vehicle condition.


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



A

10.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY (SHORT CIRCUIT IN RADIO AND DISPLAY RECEIVER ASSEMBLY)

B

11.INSPECT NAVIGATION RECEIVER ASSEMBLY (SHORT CIRCUIT IN NAVIGATION RECEIVER ASSEMBLY)
10.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY (SHORT CIRCUIT IN RADIO AND DISPLAY RECEIVER ASSEMBLY)
a.

Disconnect the G151 combination meter assembly connector.


b.

Disconnect the G155 radio and display receiver assembly connector.


c.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
G151-8 (+S) - Body ground Ignition switch ON 4.5 to 14 V


HINT:

If the result is as specified, there may be a short circuit in the stereo component amplifier assembly.



Result:
Proceed to
OK
NG



OK

REPLACE COMBINATION METER ASSEMBLY

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


NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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


11.INSPECT NAVIGATION RECEIVER ASSEMBLY (SHORT CIRCUIT IN NAVIGATION RECEIVER ASSEMBLY)
a.

Disconnect the G151 combination meter assembly connector.


b.

Disconnect the G155 navigation receiver assembly connector.


c.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
G151-8 (+S) - Body ground Ignition switch ON 4.5 to 14 V


HINT:

If the result is as specified, there may be a short circuit in the stereo component amplifier assembly.



Result:
Proceed to
OK
NG



OK

REPLACE COMBINATION METER ASSEMBLY

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


NG

REPLACE NAVIGATION RECEIVER ASSEMBLY

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


12.CHECK ECU TERMINAL VOLTAGE (INPUT VOLTAGE)
C406366C02
1.5,0.125 1.885,0.385 0.385,0.26 2.552,1.385 2.917,1.792 2.917,1.792 3.083,1.792 true 0.115,0.083 0.427,0.24 0.313,0.156 10 false *a 1.583,0.188 1.896,0.344 0.313,0.156 10 false G18 3.146,1.677 3.417,1.906 0.271,0.229 10 false +S
*a Front view of wire harness connector
(to Combination Meter Assembly)


a.

Disconnect the combination meter assembly connector.


b.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
G18-36 (+S) - Body ground Ignition switch ON 11 to 14 V


HINT:

If any of the ECUs specified in the wiring diagram supplies power to the combination meter assembly, the combination meter assembly will output a waveform.



Result:
Proceed to
OK
NG



OK

13.CHECK COMBINATION METER ASSEMBLY (OUTPUT VOLTAGE)

NG

16.CHECK HARNESS AND CONNECTOR (EACH ECU - COMBINATION METER ASSEMBLY)
13.CHECK COMBINATION METER ASSEMBLY (OUTPUT VOLTAGE)
E376462C04
1.51,0.177 1.927,0.427 0.417,0.25 0.646,0.333 0.771,0.333 0.771,0.333 1.25,0.906 true 1.604,0.198 2.063,0.396 0.458,0.198 10 false A39 0.344,0.229 0.802,0.427 0.458,0.198 10 false SP1 0.115,0.063 0.573,0.26 0.458,0.198 10 false *a
*a Front view of wire harness connector
(to Brake Actuator Assembly [Skid Control ECU])


a.

Disconnect the brake actuator assembly (skid control ECU) connector.


b.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
A39-34 (SP1) - Body ground Ignition switch ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

14.CHECK BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) (INPUT WAVEFORM)

NG

15.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BRAKE ACTUATOR ASSEMBLY [SKID CONTROL ECU])
14.CHECK BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) (INPUT WAVEFORM)
E391284C07
1.448,0.438 1.865,0.667 0.417,0.229 1.031,1.323 0.521,1.042 0.521,1.042 0.344,1.042 true 1.542,0.469 1.854,0.667 0.313,0.198 10 false G18 0.146,0.927 0.458,1.125 0.313,0.198 10 false SI 2.948,3.698 3.406,3.896 0.458,0.198 10 false GND 1.281,3.979 1.438,4.177 0.156,0.198 10 false A 0.177,0.24 0.49,0.438 0.313,0.198 10 false *a 0.448,2.458 0.76,2.656 0.313,0.198 10 false *b
*a Component with harness connected
(Combination Meter Assembly)
*b Waveform


a.

Check the input waveform.

i.

Remove the combination meter assembly with the connector(s) still connected.

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


ii.

Turn the ignition switch to ON.


iii.

Turn a wheel slowly.


iv.

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

Item Condition
Tester connection G18-20 (SI) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Condition Ignition switch ON, 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 COMBINATION METER ASSEMBLY

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


NG

REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>REMOVAL


15.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BRAKE ACTUATOR ASSEMBLY [SKID CONTROL ECU])
a.

Disconnect the G18 combination meter assembly connector.


b.

Disconnect the A39 brake actuator assembly (skid control ECU) connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G18-20 (SI) - A39-34 (SP1) Always Below 1 Ω
G18-20 (SI) or A39-34 (SP1) - 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

16.CHECK HARNESS AND CONNECTOR (EACH ECU - COMBINATION METER ASSEMBLY)
C406366C02
1.5,0.125 1.885,0.385 0.385,0.26 2.552,1.385 2.917,1.792 2.917,1.792 3.083,1.792 true 0.115,0.083 0.427,0.24 0.313,0.156 10 false *a 1.583,0.188 1.896,0.344 0.313,0.156 10 false G18 3.146,1.677 3.417,1.906 0.271,0.229 10 false +S
*a Front view of wire harness connector
(to Combination Meter Assembly)


a.

Disconnect the combination meter assembly connector.


b.

Disconnect the A125 ECM connector.


c.

Disconnect the G155 radio and display receiver assembly connector.


d.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G18-36 (+S) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

17.CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

17.CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY
a.
C406366C02
1.5,0.125 1.885,0.385 0.385,0.26 2.552,1.385 2.917,1.792 2.917,1.792 3.083,1.792 true 0.115,0.083 0.427,0.24 0.313,0.156 10 false *a 1.583,0.188 1.896,0.344 0.313,0.156 10 false G18 3.146,1.677 3.417,1.906 0.271,0.229 10 false +S
*a Front view of wire harness connector
(to Combination Meter Assembly)


Disconnect the combination meter assembly connector.


b.

Disconnect the G155 radio and display receiver assembly connector.


c.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
G18-36 (+S) - Body ground Ignition switch ON 11 to 14 V


HINT:

If the result is as specified, there may be a short circuit in the radio and display receiver assembly.



Result:
Proceed to
OK
NG



OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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


NG

REPLACE ECM

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>ECM>REMOVAL