id0140q1205000
Outline
Block Diagram
am2zzn00003422
|
Operation
Operation pattern (without EGR cooler)
| Demand airflow volume |
Cooling fan relay |
Cooling fan motor |
||
|---|---|---|---|---|
| No.1 |
No.2 |
|||
|
No airflow
|
OFF
|
OFF
|
Stop
|
|
|
Small
|
ON
|
OFF
|
Low-speed
|
|
|
Large
|
ON
|
ON
|
High-speed
|
|
am2zzn00003423
|
Operation pattern (with EGR cooler)
| Demand airflow volume |
Cooling fan relay |
Cooling fan motor |
||
|---|---|---|---|---|
| No.1 |
No.2 |
|||
|
No airflow
|
OFF
|
OFF
|
Stop
|
|
|
Small
|
ON
|
OFF
|
Low-speed
|
|
|
Large
|
OFF
|
ON
|
High-speed
|
|
am2zzn00005513
|
Engine coolant temperature condition
am3zzn00003645
|
A/C operation condition (with air conditioner)
| Operation condition |
Demand airflow volume |
|---|---|
|
• When any of the following conditions is met.
|
No airflow
|
|
• When any of the following conditions is met.
|
Small
|
|
• When any of the following conditions is met.
|
Large
|
After Cooling Control
Conditions during collision