MIL Circuit [08/2017 - 08/2018]: Procedure

1. Perform troubleshooting in accordance with the table below.

   Result

   MIL	Condition	Proceed to
   Illuminates → Turns off	Ignition switch off → Ignition switch ON	A
   Other than above	-	B

Result: 

A 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [08/2015 - ] 

Result: 

B 

See step  2

1. Connect the GTS to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the GTS on.
4. 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

Result: 

B 

GO TO VC OUTPUT CIRCUIT. Refer to  VC Output Circuit [08/2017 - 08/2018]  

Result: 

A 

See step  3

1. Connect the GTS to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the GTS on.
4. Enter the following menus: System Select / Health Check.
5. 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.

Result: 

B 

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS 

Result: 

A 

See step  4

1. Connect the GTS to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the GTS on.
4. Enter the following menus: Body Electrical / Combination Meter / Active Test / Check Engine Indicator.

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   Check Engine Indicator

5. 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

Result: 

A 

REPLACE ECM. Refer to  REMOVAL [08/2015 - ] 

Result: 

B 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2017 - ]