They turn on based on coolant temp. at no speed or any speed.
Ambient temp., engine load, A/C operation and cooling system condition are variables that determine coolant temp/fan operation.
GEN6 testing:
ON-VEHICLE INSPECTION
1. INSPECT COOLING FAN SYSTEM
(a) Put the vehicle in the following conditions:
(1) The ignition switch is off.
(2) The coolant temperature is less than 95
(1) The ignition switch is off.
(2) The coolant temperature is less than 95
°C (203°F).
(3) The battery voltage is between 9 and 14 V.
(4) The A/C switch is OFF.
(b) Connect the 400 A probe of the ammeter to terminals M+ (M) and M+ (S) of the cooling fan motor.
(c) Turn the ignition switch on (IG) and wait for approximately 10 seconds. Check that the fan stops.
(d) Start the engine. Check that the fan stops with the engine idling.
HINT:
• Make sure that the radiator engine coolant temperature is less than 95°C (203°F).
• Turn the A/C switch OFF.
(e) Check that the fan operates when the A/C switch is turned ON (MAX COOL and the magnet clutch is operating).
(3) The battery voltage is between 9 and 14 V.
(4) The A/C switch is OFF.
(b) Connect the 400 A probe of the ammeter to terminals M+ (M) and M+ (S) of the cooling fan motor.
(c) Turn the ignition switch on (IG) and wait for approximately 10 seconds. Check that the fan stops.
(d) Start the engine. Check that the fan stops with the engine idling.
HINT:
• Make sure that the radiator engine coolant temperature is less than 95°C (203°F).
• Turn the A/C switch OFF.
(e) Check that the fan operates when the A/C switch is turned ON (MAX COOL and the magnet clutch is operating).
Standard current : Without trailer hitch
Standard current : With trailer hitch
Standard current : With trailer hitch
HINT:
The coolant temperature is less than 95
The coolant temperature is less than 95
°C (203°F).
(f) Check that the fan operates when the engine
coolant temperature sensor connector is
disconnected.
(f) Check that the fan operates when the engine
coolant temperature sensor connector is
disconnected.
Standard current : Without trailer hitch
Standard current : With trailer hitch
Standard current : With trailer hitch
Item Specified Condition
Cooling fan motor 2 to 8 A
Cooling fan motor No. 2 2 to 8 A
Item Specified Condition
Cooling fan motor 2 to 11 A
Cooling fan motor No. 2 2 to 11 A
Item Specified Condition
Cooling fan motor 2 to 11 A
Cooling fan motor No. 2 2 to 11 A
Item Specified Condition
Cooling fan motor 2 to 15 A
Cooling fan motor No. 2 2 to 15 ACooling fan motor 2 to 8 A
Cooling fan motor No. 2 2 to 8 A
Item Specified Condition
Cooling fan motor 2 to 11 A
Cooling fan motor No. 2 2 to 11 A
Item Specified Condition
Cooling fan motor 2 to 11 A
Cooling fan motor No. 2 2 to 11 A
Item Specified Condition
Cooling fan motor 2 to 15 A
g) After the engine is warmed up, check that the fan operates as shown in the illustration on the left.
HINT:
• The coolant temperature at which the fan starts operating is approximately 95
HINT:
• The coolant temperature at which the fan starts operating is approximately 95
°C (203°F).
Check your GEN5 Service Manual..........