DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK THAT MIL IS ILLUMINATED
CHECK WHETHER MIL TURNS OFF
CHECK WIRE HARNESS (FOR SHORT IN WIRE HARNESS)
CHECK THAT MIL IS ILLUMINATED
INSPECT COMBINATION METER ASSEMBLY (MIL CIRCUIT)
DESCRIPTION
The Malfunction Indicator Lamp (MIL) is used to indicate malfunction detections by the ECM.By turning the ignition switch ON, power is supplied to the MIL circuit, and the ECM provides the circuit ground which illuminates the MIL.The MIL operation can be checked visually. When the ignition switch is first turned ON, the MIL should be illuminated and should then turn OFF. If the MIL remains illuminated or is not illuminated, conduct the following troubleshooting procedure using the intelligent tester.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK THAT MIL IS ILLUMINATED |
Troubleshoot each trouble symptom in accordance with the chart below.
- Result:
Condition
| Proceed to
|
MIL remains illuminated
| A
|
MIL not illuminated
| B
|
| 2.CHECK WHETHER MIL TURNS OFF |
Connect the intelligent tester to the DLC3.
Turn the ignition switch ON and turn the tester ON.
Check whether any DTCs have been stored. Write them down if necessary.
Clear DTCs (Toyota Fortuner RM0000010E700JX.html).
Check if the MIL turns OFF.
- OK:
- MIL turns off.
| | REPAIR CIRCUITS INDICATED BY OUTPUT DTCS |
|
|
| 3.CHECK WIRE HARNESS (FOR SHORT IN WIRE HARNESS) |
Disconnect the E13 ECM connector.
Turn the ignition switch ON.
Check the MIL is not illuminated.
- OK:
- MIL is not illuminated.
| NG |
|
|
|
| REPAIR OR REPLACE HARNESS AND CONNECTOR (COMBINATION METER - ECM) |
|
| 4.CHECK THAT MIL IS ILLUMINATED |
Check if the MIL is illuminated when the ignition switch is turned ON.
- OK:
- MIL illuminates.
| 5.INSPECT COMBINATION METER ASSEMBLY (MIL CIRCUIT) |
See the combination meter troubleshooting procedures (Toyota Fortuner RM0000011IT00SX.html).
| | REPAIR OR REPLACE COMBINATION METER ASSEMBLY |
|
|
| OK |
|
|
|
| REPAIR OR REPLACE HARNESS AND CONNECTOR (COMBINATION METER - ECM) |
|
