RM36D0EC _58 Vehicle Interior _083097 METER / GAUGE / DISPLAY _0694858 METER / GAUGE SYSTEM(for SFTM Made) J

METER / GAUGE / DISPLAY  METER / GAUGE SYSTEM(for SFTM Made)  Fuel Lid Opener System Operation Message Display Malfunction  


DESCRIPTION

The combination meter assembly and ECM are connected via direct line. The combination meter assembly displays fuel lid opener system operation messages according to the fuel lid signals received from the ECM.

WIRING DIAGRAM

B722762E02
1.688,2.552 2.146,2.75 0.458,0.198 10 false ECM 1.688,2.354 2,2.552 0.313,0.198 10 false A24 1.906,1.333 2.521,1.531 0.615,0.198 10 false LSTM 2.396,1.229 2.708,1.427 0.313,0.198 10 false 41 4.563,1.229 6.094,1.427 1.531,0.198 10 false 28 4.854,1.24 5.469,1.438 0.615,0.198 10 false LST1 4.5,2.375 6.031,2.573 1.531,0.198 10 false G151 4.5,2.563 6.49,2.833 1.99,0.271 10 false Combination Meter Assembly

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.

·

The following troubleshooting procedure is based on the assumption that the SFI system and fuel lid opener system are normal. Confirm that the SFI system and fuel lid opener system are not malfunctioning before performing the following procedure.

Click hereEngine / Hybrid System>A25F-FXS (ENGINE CONTROL)>SFI SYSTEM (Production date from 2021/08)>HOW TO PROCEED WITH TROUBLESHOOTING



PROCEDURE

1.INSPECT COMBINATION METER ASSEMBLY (OUTPUT VOLTAGE)
a.

Disconnect the A24 ECM connector.


b.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
A24-41 (LSTM) - Body ground Ignition switch off 11 to 14 V



Result:
Proceed to
OK
NG



OK

2.INSPECT COMBINATION METER ASSEMBLY (INPUT WAVEFORM)

NG

3.CHECK HARNESS AND CONNECTOR (ECM - COMBINATION METER ASSEMBLY)
2.INSPECT COMBINATION METER ASSEMBLY (INPUT WAVEFORM)
E414104C36
1.521,0.156 2,0.406 0.479,0.25 2.188,1.885 2.021,1.188 true 0.198,0.156 0.51,0.313 0.313,0.156 10 false *a 2.052,1.917 2.583,2.167 0.531,0.25 10 false LST1 1.604,0.198 2.083,0.5 0.479,0.302 10 false G151
*a Component with harness connected
(Combination Meter Assembly)


a.

Connect the ECM connector.


b.

Operate the fuel lid opener switch.


c.

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

NOTICE:

Perform the inspection from the back of the connector with the connector connected.


A375178E03
2.76,0.927 3.333,1.125 0.573,0.198 10 false GND

Waveform 1:

Item Condition
Tester connection G151-28 (LST1) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Vehicle condition "Close Fuel Lid" displayed on multi-information display

A375177E03
2.771,0.938 3.323,1.146 0.552,0.208 10 false GND

Waveform 2:

Item Condition
Tester connection G151-28 (LST1) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Vehicle condition "Ready to Refuel" displayed on multi-information display

A375176N02
2.771,0.948 3.354,1.135 0.583,0.188 10 false GND

Waveform 3:

Item Condition
Tester connection G151-28 (LST1) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Vehicle condition "Please Wait Fuel Door Opening" displayed on multi-information display



Result:
Result Proceed to
All of the waveforms are output normally A
A waveform is not output normally B



A

REPLACE COMBINATION METER ASSEMBLY

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


B

REPLACE ECM

Click hereEngine / Hybrid System>A25F-FXS (ENGINE CONTROL)>ECM (Production date from 2021/08)>REMOVAL


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

Disconnect the A24 ECM connector.


b.

Disconnect the G151 combination meter assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G151-28 (LST1) - A24-41 (LSTM) Always Below 1 Ω
G151-28 (LST1) or A24-41 (LSTM) - 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