EGT Sensor-3 Check
Precautions: General safety (00)
NOTE:
Even if vehicle is under idling condition, forced regeneration without speed request is activated according to DPF® clogging.
In this state, engine speed at idling is increased.
For details of forced regeneration, refer to “Forced regeneration without Speed Request” under DPF® Regeneration Description:D16AA.
Circuit Diagram
| [A]: | ECM connector (View: [a]) | A2: | EGT sensor-3 ground circuit | 2. | EGT sensor-3 |
| A1: | EGT sensor-3 signal circuit | 1. | ECM |
Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Parameter check
1)When ignition is “OFF”, connect SUZUKI scan tool to DLC.
2)Start engine, warm it up to normal operating temperature, and then check that “Outlet DPF gas Temp” displayed on SUZUKI scan tool is 30 to 500 °C (86 to 932 °F).
Is check result OK?
|
End.
|
Go to Step 2.
|
| 2 |
EGT sensor-3 signal circuit and ground circuit check
1)When ignition is “OFF”, disconnect “E01” connector from ECM and EGT sensor-3 connector.
2)Check for proper terminal connection to “E01” connector and EGT sensor-3 connector.
3)If connections are OK, check the following points.
•Resistance of “A1” and “A2” circuits: less than 1 Ω
•Resistance between “A1” circuit and ground: infinity •Resistance between “A1” circuit terminal and other terminal at EGT sensor-3 connector: infinity •Voltage of “A1” and “A2” circuits: approx. 0 V (When ignition is “ON”) Is check result OK?
|
Go to Step 3.
|
Repair or replace defective wire harness.
|
| 3 |
EGT sensor-3 check
1)Check EGT sensor-3.
Is check result OK?
|
Replace ECM and recheck parameter.
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Replace EGT sensor-3.
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