RM38T0EC _58 Vehicle Interior _112289 METER / GAUGE / DISPLAY _0504968 METER / GAUGE SYSTEM J

METER / GAUGE / DISPLAY  METER / GAUGE SYSTEM  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

E389791E42
1.698,2.344 4.177,2.667 2.479,0.323 10 false ECM 4.51,2.313 6.99,2.635 2.479,0.323 10 false Combination Meter Assembly 1.708,2.188 4.188,2.51 2.479,0.323 10 false A47 4.51,2.146 6.99,2.469 2.479,0.323 10 false I4 1.917,1.156 4.396,1.479 2.479,0.323 10 false LSTM 2.396,1.042 4.875,1.365 2.479,0.323 10 false 41 4.865,1.042 5.365,1.458 0.5,0.417 10 false LST1 4.583,1.042 7.063,1.365 2.479,0.323 10 false 28 5.292,0.698 5.792,1.115 0.5,0.417 10 false 12 V

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.

·

When replacing of the following ECUs, update the ECU security key.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>UPDATE ECU SECURITY KEY

-

Combination meter assembly

-

ECM


·

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.

SFI system: Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>SFI SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING

Fuel lid opener system: Click hereVehicle Exterior>DOOR / HATCH>FUEL LID OPENER SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING



PROCEDURE

1.INSPECT COMBINATION METER ASSEMBLY (OUTPUT VOLTAGE)
A425682C21
0.104,0.583 0.542,0.802 0.438,0.219 0.792,1.896 1.729,1.125 true 0.208,0.604 0.667,0.802 0.458,0.198 10 false A47 0.198,0.094 0.51,0.292 0.313,0.198 10 false *a 0.604,1.917 1.219,2.115 0.615,0.198 10 false LSTM
*a Front view of wire harness connector
(to ECM)


a.

Disconnect the ECM connector.


b.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
A47-41 (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)
E414104C21
1.531,0.208 1.938,0.458 0.406,0.25 2.188,1.885 2.021,1.188 true 0.198,0.156 0.51,0.313 0.313,0.156 10 false *a 1.677,0.25 2.021,0.479 0.344,0.229 10 false I4 2.052,1.917 2.469,2.135 0.417,0.219 10 false LST1
*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 I4-28 (LST1) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Condition The following message (interrupt display) being displayed on the multi-information display:

"Ready to Refuel"



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

Waveform 2:

Item Condition
Tester Connection I4-28 (LST1) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV.
Condition The following message (interrupt display) being displayed on the multi-information display:

"Close Fuel Lid"



HINT:

This waveform is output when the fuel lid opener switch is operated if the fuel lid is open and any of the following conditions are met:

·

The vehicle has been driven for 1 km (0.6 mile) or more at a speed of 50 km/h (31 mph) or more.

·

30 minutes or more have elapsed since the fuel lid opener switch was operated.





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>M20F-FXS, M20G-FXS (ENGINE CONTROL)>ECM>REMOVAL


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

Disconnect the I4 combination meter assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A47-41 (LSTM) - I4-28 (LST1) Always Below 1 Ω
A47-41 (LSTM) or I4-28 (LST1) - 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