RM3660EC _51 Engine / Hybrid System _080778 8ZR-FXE ENGINE CONTROL _0393982 SFI SYSTEM J

8ZR-FXE ENGINE CONTROL  SFI SYSTEM  MIL Circuit  


DESCRIPTION

The Malfunction Indicator Lamp (MIL) is used to indicate vehicle malfunctions detected by the ECM.

The MIL operation can be checked visually. When the power switch is turned on (IG), the MIL should be illuminated and should then turn off after the power switch is turned on (READY). If the MIL remains illuminated or does not illuminate, conduct the following troubleshooting procedure.

WIRING DIAGRAM

A538359E02
6.406,2.458 6.865,2.656 0.458,0.198 10 false ECM 6.396,2.302 6.896,2.5 0.5,0.198 10 false A46 6.302,0.771 6.458,0.969 0.156,0.198 10 false 9 6.25,1.229 6.563,1.427 0.313,0.198 10 false 10 6.438,0.906 7.052,1.104 0.615,0.198 10 false CFDH 6.438,1.365 6.896,1.667 0.458,0.302 10 false CFDL 4.75,2.5 6.146,3.198 1.396,0.698 10 false Inverter with Converter Assembly 4.771,2.323 5.344,2.594 0.573,0.271 10 false A140 5.25,0.927 5.865,1.125 0.615,0.198 10 false CADH 5.271,1.365 5.885,1.563 0.615,0.198 10 false CADL 5.688,0.76 6,0.958 0.313,0.198 10 false 13 5.698,1.219 6.01,1.417 0.313,0.198 10 false 14 4.802,0.917 5.417,1.115 0.615,0.198 10 false CANH 4.813,1.365 5.427,1.563 0.615,0.198 10 false CANL 4.656,0.781 4.813,0.979 0.156,0.198 10 false 5 4.667,1.229 4.823,1.427 0.156,0.198 10 false 6 3.177,2.49 4.01,3.063 0.833,0.573 10 false Battery ECU Assembly 3.167,2.344 3.781,2.542 0.615,0.198 10 false O167 3.635,0.917 4.25,1.115 0.615,0.198 10 false C2HB 3.646,1.375 4.26,1.573 0.615,0.198 10 false C2LB 4.042,0.771 4.354,0.969 0.313,0.198 10 false 20 4.042,1.229 4.354,1.427 0.313,0.198 10 false 19 3.135,0.917 3.75,1.115 0.615,0.198 10 false CA2H 3.146,1.365 3.76,1.563 0.615,0.198 10 false CA2L 3.01,0.771 3.167,0.969 0.156,0.198 10 false 9 3.021,1.229 3.177,1.427 0.156,0.198 10 false 8 1.344,0.76 1.656,0.958 0.313,0.198 10 false 30 1.354,1.219 1.667,1.417 0.313,0.198 10 false 29 1.552,2.51 2.646,2.979 1.094,0.469 10 false Network Gateway ECU 1.573,2.344 2.188,2.542 0.615,0.198 10 false I207 2.031,0.917 2.646,1.115 0.615,0.198 10 false CA4H 2.469,0.76 2.781,0.958 0.313,0.198 10 false 26 2.458,1.188 2.771,1.385 0.313,0.198 10 false 25 2.042,1.375 2.656,1.573 0.615,0.198 10 false CA4L 1.552,0.917 2.167,1.115 0.615,0.198 10 false CA3H 1.563,1.385 2.177,1.583 0.615,0.198 10 false CA3L 0.313,0.906 0.927,1.104 0.615,0.198 10 false CANH 0.354,1.365 0.969,1.563 0.615,0.198 10 false CANL 0.792,0.75 1.104,0.948 0.313,0.198 10 false 31 0.802,1.208 1.115,1.406 0.313,0.198 10 false 14 0.073,2.333 0.385,2.531 0.313,0.198 10 false I5 0.052,2.51 1.25,2.938 1.198,0.427 10 false Combination Meter Assembly 0.917,1.969 1.438,2.469 0.521,0.5 10 false to Other ECUs 4.135,1.958 4.677,2.573 0.542,0.615 10 false to Other ECUs 0.927,3.25 2.625,3.635 1.698,0.385 10 false : CAN Communication Line

PROCEDURE

1.CHECK THAT MIL IS ILLUMINATED
a.

Perform troubleshooting in accordance with the table below.

Result:
MIL Condition Proceed to
Illuminates → Turns off Power switch on (IG) → Power switch on (READY) A
Other than above - B




A

CHECK FOR INTERMITTENT PROBLEMS

Click hereEngine / Hybrid System>8ZR-FXE (ENGINE CONTROL)>SFI SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


B

2.CHECK COMMUNICATION BETWEEN GTS AND ECM
2.CHECK COMMUNICATION BETWEEN GTS AND ECM
a.

Connect the GTS to the DLC3.


b.

Turn the power switch on (IG).


c.

Turn the GTS on.


d.

Check the communication between the GTS and ECM.

HINT:

Communication can be checked by using the Data List item Engine.



Result:
Result Proceed to
Communication is possible A
Communication is not possible B



A

3.CHECK WHETHER DTC OUTPUT RECURS

B

GO TO VC OUTPUT CIRCUIT

Click hereEngine / Hybrid System>8ZR-FXE (ENGINE CONTROL)>SFI SYSTEM>VC Output Circuit


3.CHECK WHETHER DTC OUTPUT RECURS
a.

Connect the GTS to the DLC3.


b.

Turn the power switch on (IG).


c.

Turn the GTS on.


d.

Enter the following menus: System Select / Health Check.


e.

Check if any DTCs have been detected. Note down any DTCs.

Result:
Result Proceed to
DTCs are not output A
DTCs are output B


HINT:

Check for detected DTCs output from other ECUs which relate to the MIL.




A

4.PERFORM ACTIVE TEST USING GTS

B

REPAIR CIRCUIT INDICATED BY OUTPUT

4.PERFORM ACTIVE TEST USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the power switch on (IG).


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Combination Meter / Active Test / Check Engine Indicator.

Body Electrical > Combination Meter > Active Test
Tester Display
Check Engine Indicator
50004 122 150

e.

According to the display on the GTS, perform the Active Test and check the operation of the MIL.

Result:
Result Proceed to
Changes A
Does not change B




A

REPLACE ECM

Click hereEngine / Hybrid System>8ZR-FXE (ENGINE CONTROL)>ECM>REMOVAL


B

REPLACE COMBINATION METER ASSEMBLY

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