Question about 2000 Toyota Camry

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My cooling fan is not working. The relay is ok. The only way I can get the other fan on is to turn on the heat. Is there a sensor on fan #2?

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  • JIMMY SMITH May 11, 2010

    is this a v6 engine if so the fan is hydralicly controlled by the powersteering pump

  • blueblonde67 May 12, 2010

    No, it is a 4 cyl

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You can flip flop relays with other like relays to confirm that all relays are ok.
Too, you can bring power and ground to the fan to confirm the fan is ok.
Then next, you can check the resistance of the coolant temperature sensor and confirm it is ok ( typically resistance will be different from cool engine to hot engine )
Let me know what your tests come up with.

Posted on May 12, 2010

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2 Answers

My cooling fan will not turn on. What could this be? I had someone tell me the water pump, but it does not leak.


Step 1:

This cooling fan circuit has 2 cooling fans and 2 cooling fan relays, both cooling fan relays are located in the BJB (battery junction box, underhood fuse box) there is a low speed or main cooling fan relay in cavity location # K-46 and the high speed relay is location # K-47! Also check the main cooling fan power fuse # 2 in the same BJB, The fuse is a MAXI-FUSE (large one) it is blue in color and is rated at 60amps!

Step 2:

Also check the coolent tempature sensor thats what signals the fan to turn on.

Step 3:

Do the fans turn on when you turn the a/c on. if not may have bad fan motor

Feb 27, 2013 | 1998 Ford Contour

1 Answer

Cooling fan does not run?


At the main fuse and relay box, check the 30A EGI INJ fuse. If OK, the main relay closes to apply power to the cooling fan relay. Next, check the 30A FAN 1 and FAN 2 fuses.If OK, power is being applied to the fan control module. The PCM processes engine coolant temperature sensor input and sends a signal to the fan control module which, in turn, causes the cooling fan motor to operate. Fan failure could be caused by malfunction of the cooling fan relay, the fan control module, the engine coolant temperature sensor, the cooling fan motor itself, or the PCM

Oct 06, 2012 | 2005 Mazda MPV

1 Answer

2000 grand am gt over heating radiator fans not turning on


Overall Cooling fan operation is managed by the powertrain control module (PCM). Three relays control fan motor operation. In the underhood junction block, the 30A COOL FAN 1 fuse feeds power to (left) fan control relay 1; 15A COOL FAN 2 fuse feeds power to (right) fan control relay 2. The mode control relay determines whether the left fan, the right fan or both fans are turned on. If the two fuses are OK, the problem is a defective fan relay(s) or the PCM

Sep 28, 2012 | 1999 Pontiac Grand Am GT

1 Answer

Cooling fan not working 1999 eldorado


Yes their is both a fuse and a fan relay.Tthe fan relay is some times located in the multi function relay on some vechiles, and is not replaceable by it self the entire multi function relay must be replaced as a whole. BUT, Lets not put the cart in front of the horse. You can diagnose this problem yourself first locate fues via owners manual if available. second assuming fuse is ok turn heat on all the way on defrost see if fan comes on? turn off heat Third turn A/C on full max cool see if fan comes on. if fan/fans do not engauge then test power, and ground at fan. IF still no fan suspect temp sensor. let me know what if any of these test produce results. if you need more info pleae let me know.

Feb 14, 2012 | Cars & Trucks

3 Answers

I have a 98 Chevy Cav 2.2L.


Make sure your radiator fan is working or cutting on.It could be a faulty fan relay or fuse and it could also be a faulty coolant temperature sensor.

Jan 24, 2012 | 1998 Chevrolet Cavalier

2 Answers

The electric fan is does not seem to be engaging at low speed causing the engine to overheat when the A/C is on... the engine fan starts and stop irregularly when waiting for the engine to cool down... is...


Hi!!

There should be a fuse/relay box in the engine compartment close to the battery, If your vehicle is equiped with two fans, there should be two relays. There has to be a cooling fan(if equiped with two) that comes in as soon as you turn the A/C on, is your vehicle has one fan, it has two speeds, when the A/C is turned on, the Hi speed kicks in. Sensors in this circuit that are relevant to this function are, Coolant Temp. Sensor, Engine Temp. Sensor.

Check fuses/relays for the cooling fan(s), if OK, check sensors.

Good Luck!! Don't forget to rate this post!!!

Aug 16, 2010 | 2003 Jaguar S-Type

1 Answer

Cooling Fan not coming on 2002 Mitsubishi Galant


Check the fan itself for free turning--if it grinds or is hard to turn, replace the fan motor. The engine heat sensor reports temperature to the computer which turns on the relay and it turns on the fan motor. If you have A/C, turn it on--that should force the fan on all the time the car is running. If that works, then replace the sensor. If you don't have A/C, take a chance on the sensor--it's not too expensive. Wrap the threads with several turns of teflon tape when installing and don't over-tighten.

Sep 03, 2009 | 2003 Mitsubishi Galant

3 Answers

Van chevrolet venture 2000


Fifteen minutes! you have bigger problems than only the fans the fans are controlled by a thermo switch that is heated by the coolant, If you have no coolant the sensor cannot activate But fifteen minutes seems like you may have a headgasket problem and steam cannot heat the coolant sensor.OperationNotesThe electric cooling fan operates when the engine cooling temperature exceeds a certain value. The cooling fan on this engine is controlled by the Powertrain Control Module (PCM) . The PCM turns the cooling fan ON by grounding the coil of the cooling fan relays when certain conditions are met. When the A/C is requested, the cooling fan will also be turned ON.

Power for the cooling fan motors are supplied through Maxifuses(R). The cooling fan relays are energized when current flows from the fuses in the Underhood Accessory Wiring Junction Block, and through the relay coils to ground through the PCM. The Coolant Fan 1 Relay Control Circuit is grounded for low speed fans operation. During low speed fans operation, both fans run at a slow speed. The Coolant Fan 1 Relay Control Circuit is grounded for high speed operation. During high speed fans operation, both fans run at high speed.

IMPORTANT: When certain Diagnostic Trouble Codes (DTCs) are present, the PCM may command the cooling fans to run all the time. Perform the A Powertrain On Board Diagnostic (OBD) System Check prior to diagnosing the engine cooling fans.

For more information regarding the Charging System, refer to Charging System Description , and Charging System Circuit Description in Starting and Charging.

If a problem that involves the low speed cooling fan relay control circuit exists, DTC P0480 Cooling Fan Relay 1 Control Circuit should set. If the problem affects the high speed cooling fan relay control circuit, DTC P0481 Cooling Fan Relay 2 Control Circuit should set. A problem with the ECT sensor should set DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage, DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage, DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage, DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage. Any of these DTCs will affect cooling fan operation and should be diagnosed before using the Electric Cooling Fan Diagnosis.

For more information regarding the Cooling System refer to Engine Cooling Fan Description - Electric, and Cooling System Description in Cooling System.


Here is the electrical schematic and how it all is suppose to work,
If you need any further help please contact me Thank you,Randy If you find this information helpful please give me a good rating

www.aceautomotive1.com

Aug 16, 2008 | 2000 Chevrolet Venture

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