Question about Jaguar S-Type

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Need location for 02 jag s-type 3.0

Car overheating due to fan not working, got fan to work direct with jumpers but no current from connector to cooling fan module,from harness for fan I was told could be coolant temp sensor or relay.Fan control module for fan has relay no seperate relay in fuse box. Need to locate for sensor to replace or check sensor thank you

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paul fairbanks

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  • Jaguar Master
  • 1,147 Answers

The main problem with that car is corroded wiring first thing to check is the wiring behind the front bumper liner and the wiring to the fan module take off the front bumper under liner easy to get to the connectors there is 2 connectors and a small harness to the engine bay fusebox

Posted on Nov 26, 2017

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5 Related Answers

Anonymous

  • 702 Answers

SOURCE: Cooling fan wont work

The water temp sensor is located near the thermostat housing. This sensor is what tells the ECM to turn the fan on/off. The water temp sending unit is located near the same area. You know you have the correct sensor is because the water temp sensor has a 2 prong plug. The water temp sending unit only has 1 prong.

Posted on Sep 27, 2008

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Adam Vaughn

  • 28 Answers

SOURCE: cooling fan

Whoever told you the temperature gauge on cavalier is normal 3/4th is the lie. It is however in operating temperature range but on the hot side. Have you flushed your coolant and replaced thermostate, and gotten air vapor locks out.

Posted on Dec 01, 2008

Anonymous

  • 1 Answer

SOURCE: can't locate the cooling fan sensor or relay.

the radiator fan relay is located behind and slightly lower than the r/f headlamp.best way to get to this is by removing right side of front fascia out enough to get behind it. this will give you acsess to the relay.i work at a jeep dealer and have done this many times.

Posted on Apr 18, 2009

Anonymous

  • 2 Answers

SOURCE: 1996 Passat Fuse box Diagram

Have you double checked the electronic switch type thermistat mounted on the radiator that senses the temperature of the anti freeze. You can jumper around the switch while the car is started and the fan should start running (watch your fingers).

Posted on Apr 21, 2009

John Bloomfield

  • 534 Answers

SOURCE: I have a 2003 VW Jetta 1.8t that is overheating.

Assuming engine tune / mechanical condition is not the cause of the overheating:-
Ensure cooling fan is cutting in at the appropriate engine temperature - check operation of the fan controlling relay,
Ensure fan switching control temperature sensor is serviceable,
Ensure cooling system is filled properly, taking care to bleed out air where necessary,
Ensure coolant pressure cap is of correct rating and in serviceable condition,
Check coolant hose on suction side of waterpump is not softened and collapsing at engine revs above idle,
Ensure radiator core is not blocked or cooling airflow inhibited by insects etc.

Posted on Aug 11, 2009

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Procedure to diagnose dtc p0526 2005 gmc envoy 4.2L


DTC P0526 Cooling Fan Speed Sensor Circuit

Circuit Description
The powertrain control module (PCM) uses the cooling fan speed signal in order to determine the actual fan speed in relation to the desired fan speed. The PCM uses the cooling fan speed signal in order to reduce the cooling fan noise and in order to maintain the powertrain cooling requirements. The PCM supplies power and ground to the clutch hall effect sensor of the cooling fan clutch. The hall effect sensor returns a signal pulse through the speed signal circuit in response to the reluctor track, which is located inside the fan clutch. If during operation, the PCM detects a loss of the cooling fan speed signal, DTC P0526 will set.


Do you know how to test electrical circuit's ?

Diagnostic Aids
• An inline connector could cause an intermittent DTC. Ensure to test for poor connections and pin retention at all inline connectors. Refer to system schematics for connectors and locations.
• If the condition is not present, refer to Testing for Intermittent Conditions and Poor Connections .
• Disconnect the harness connector of the cooling fan clutch from the shroud. Inspect the exposed wires between the harness connector and the tubing.
• Inspect the cooling fan clutch harness in order to ensure that the clutch supply voltage circuit is not shorted to the following circuits:
- The 5-volt reference circuit
- The cooling fan speed signal circuit
- The low reference circuit
• DTC P0526 will set if the engine is started without the drive belt ON.


Connector End View Reference: Cooling System Connector End Views
1
Did you perform the Diagnostic System Check - Vehicle?
--
Go to Step 2
Go to Diagnostic System Check - Vehicle
2
Turn OFF the ignition.
Disconnect the cooling fan clutch harness connector at the shroud.
Connect a jumper wire between each of the following circuits:
• The 5-volt reference circuit
• The cooling fan speed signal circuit
• The low reference circuit
Measure the voltage of the cooling fan speed sensor circuit and a good ground.
Turn ON the ignition, with the engine OFF.
Manually rotate the cooling fan clutch.
Does the voltage change from 0 to 5 volts?
0-5 V
YES - Go to Step 9
NO - Go to Step 3
3
Disconnect the jumper wires.
Measure the voltage between the 5-volt reference circuit and the low reference circuit of the cooling fan clutch.
Is the voltage measurement near than the specified value?
5 V
YES - Go to Step 6
NO - Go to Step 4
4
Turn OFF the ignition.
Probe the low reference circuit of the cooling fan clutch with a test lamp connected to battery positive voltage.
Does the test lamp illuminate?
--
YES - Go to Step 5
NO - Go to Step 8
5
Test the 5-volt reference circuit of the cooling fan clutch for a high resistance, or for an open. Refer to Circuit Testing and to Wiring Repairs .
Did you find and correct the condition?
--
YES - Go to Step 14
NO - Go to Step 6
6
Test the cooling fan speed signal circuit of the cooling fan clutch for a short to ground, for a high resistance, or for an open. Refer to Circuit Testing and to Wiring Repairs .
Did you find and correct the condition?
--
YES - Go to Step 14
NO - Go to Step 7
7
Test the cooling fan speed signal circuit of the cooling fan clutch for a short to voltage. Refer to Circuit Testing and to Wiring Repairs .
Did you find and correct the condition?
--
YES - Go to Step 14
NO - Go to Step 10
8
Test the low reference circuit of the cooling fan clutch for a high resistance or for an open. Refer to Circuit Testing and to Wiring Repairs .
Did you find and correct the condition?
--
YES - Go to Step 14
NO - Go to Step 11
9
Disconnect the jumper wires.
Test the cooling fan speed signal circuit of the cooling fan clutch for an open. Refer to Circuit Testing and to Wiring Repairs .
Did you find and correct the condition?
--
YES - Go to Step 14
NO - Go to Step 11
10
Inspect for a poor connection at the harness connector of the cooling fan clutch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs .
Did you find and correct the condition?
--
Go to Step 14
Go to Step 12
11
Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs .
Did you find and correct the condition?
--
Go to Step 14
Go to Step 13
12
Replace the cooling fan clutch. Refer to Fan Clutch Replacement .
Did you complete the replacement?
--
Go to Step 14
--
13
Replace the PCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
--
Go to Step 14
--
14
Use the scan tool in order to clear the DTCs.
Operate the vehicle within the Conditions for Running in the DTC.
Does the DTC reset?
--
Go to Step 2
System OK

May 27, 2018 | GMC Cars & Trucks

1 Answer

I have 2000 impala.. Code 0481 I've replaced the relay even though both fans turn on fine. I also swapped the plugs to see if I would get a fan 1 code and still got 0481. Any ideas?


DTC P0481Cooling Fan Relay 2 Control Circuit .
You swaped what plugs ? Fan's ? That wouldn't change anything ! You need to know how these duel fan set up's work . With this code the fans will still work in low speed , not high !
Output driver modules (ODMs) are used by the PCM to turn on many of the current-driven devices that are needed to control various engine and transaxle functions. Each ODM is capable of controlling up to 7 separate outputs by applying ground to the device which the PCM is commanding ON. Unlike the quad driver modules (QDMs) used in prior model years, ODMs have the capability of diagnosing each output circuit individually. If an improper voltage level has been detected on ODM B output 2, which controls the high speed, relay 2, and series/parallel cooling fan relays, DTC P0481 will set.
Do you know how to do automotive electrical testing ?
Diagnostic Aids
Check for the following conditions:
• Poor connection at PCM -- Inspect harness connectors for the following items:
- Backed out terminals
- Improper mating
- Broken locks
- Improperly formed or damaged terminals
- Poor terminal to wire connections
• Damaged harness -- Inspect the wiring harness for damage.
• If the harness appears to be OK, disconnect the PCM, turn ON the ignition and observe a digital multimeter connected between the Fan Relay 2 driver circuit and ground at the PCM harness connector while moving connectors and wiring harnesses related to the series/parallel fan relay and the high speed fan relay. A change in voltage will indicate the location of the fault.
If the DTC cannot be duplicated and is determined to be intermittent, reviewing the Failure Records can be useful in determining when the DTC was last set. Also refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.


Relay Driven Dual Cooling Fan Diagnostics

Apr 24, 2017 | Cars & Trucks

1 Answer

When is the electric cooling fan suppose to come on.


The info I looked at was for v6 engine. The fan turns on at 105c or 221 f. If engine is overheating, I'd want to know, how hot in degrees f?
If you turn on ac, the fan may run? The ccrm controls the fan. Check for applicable cooling fan trouble codes? Don't replace anything unless your testing points in that direction.
It may be possible to use jumper wires from battery to connector that goes to fan, for voltage and ground, just to see if fan will run. If it won't run, suspect fan itself. Just to be safe, you might use inline fuse on jumper.

Apr 08, 2016 | 1998 Ford Mustang

1 Answer

Heater fan goes on and off when it wants to no control


My fan did this on my 2000 saturn L 200.
If you are handy with a screwdriver and nut driver , the problem I found was the black power wire coming from the main wiring harness to the plastic wire housing going to the back of the heater control module was loose, due to overheating of the wire . I simply bypassed it, installing a jumper past the harness to the control unit wire, keeping black to black. Works great !!! Good luck !

Oct 16, 2014 | 2002 Saturn L-Series

1 Answer

Radiator fan stopped working, car over heating


unplug the fan at the connector,, use jumper wires from the battery to see if the fan works with direct current, if it does, check the relay for the fan in the under hood fuse box, and also the fuse itself

Sep 10, 2011 | 1993 Lexus GS

2 Answers

Overheats if left idling but not if driving...cooling fans aren't coming on...what couls be wrong?


the cooling fans on your car are comanded on by the engine control module which reads engine temperature from the temperature sensor . when comanded on the engine control module sends a signal to the cooling fan relays . which in turn runs the current to the cooling fans . So you might want to check the cooling fan relays and make sure the fues for the cooling fans are good and the relays .if the cooling fan fuses and relays are good it could be a problem with the fan motors or the engine control module not reading the right temperature in that case it could mean you have a problem with the temperature sensor

Mar 04, 2011 | 1998 Cadillac DeVille

1 Answer

I HAVE 1995 CHEVY CAPRICE CLASSIC AND IT KEEPS OVERHEATING. I CHANGE THE THERMOSTAT. THE MAIN PROBLEM I AM HAVING IS THAT THE COOLANT FANS AREN'T WORKING. I REPLACE THE RELAYS AND TESTED THE WIRING...


Check for power and ground directly at the cooling fan connector (the red and black wires). You can either jumper across the relay or with the key on, disconnect the coolant temperature sensor (2 wire connector near the thermostat housing, usually yellow and black). This should override the computer and energize the fans. If you have good power and ground at the fan connector, then the fan motor is no good. If you don't have power and ground there, it's a wiring issue from the relay, the relay itself, or no power to the cooling fan circuit (fuse).

Feb 23, 2011 | 1995 Chevrolet Caprice Classic

1 Answer

Engine Over heating while cooling fan not responding to cooldown!


Sounds like the temp switch for the fan or the fan motor itself. To check run jumper wires from your batter directly to fan.. If it turns on, then you have a bad switch. If not , your fan motor is bad. I do not have a diagram for your car but finding wires from your fan assemble should be easy. Trace starting from fan. There should be a harness soon after the fan for you to connect jumper wires to to check fan. And by the way it does not matter witch way you hook the jumper wires up. It will only change the direction the fan motor turns. Just make sure you disconnect the harness so that you do not create a back flow of current.The reason for your coolant overflow to be getting excessive pressure is the heat in the system is causing boil over(the car is too hot).

Nov 16, 2008 | 2006 Fiat 124

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