Question about 2000 Ford Escort

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2000 escort fuel pump and cooling fan run with key off

Tried replacing control module replaced pcm with another with same service number, and still has same issues. Also tried new ignition switch, and still same when you turn ignition key on the fan will shut off and the fuel pump will quit pulsating. Help!!! Any suggestions

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  • Ford Master
  • 22,041 Answers

Sounds like you have a bridge in the wrong place on the top of the fuse board where the relays are .top left side has two small bridges and you might have put three in ,the bottom one should,nt have one

Posted on Jan 17, 2009

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Posted on Jan 02, 2017

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2006 chevy Silverado Electric cooling fans do not come on. Replaced all relays. Checked the fans by hot wiring them to the battery and they function. Other than the PCM what else could it be?


Did you check the fuses, any voltage at the fuses? In the picture, the left side of relay is control, the pcm grounds the control side of relay. Any applicable trouble codes? Check the coolant temp sensor. I'm not saying replace anything. Will the fans come on if you turn on the ac?
The fans should come on around 220 degrees F. Some makes and models, if you unplug the coolant temp sensor, the fan/s may run all the time? The info I looked at was for 1500--5.3L engine--non-hybrid.
cooling fan 1-a2koxpatrcthkuw0fex1osdc-2-0.jpg

cooling fan 2-a2koxpatrcthkuw0fex1osdc-2-2.jpg

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My 93 taurus turns over but no start the CCRM buzzes when the key is on and I have constant power to the coil wire when not cranking changed CCRM no help used too if I hit CCRM it would stop buzzing


Ignition control module or PCM problem or pick up coil ! The CCRM - constant control relay module just has control relays for the fuel pump , cooling fans , A/C clutch coil control , PCM power . Nothing that would make the coil fire continuosly . I would check out videos on youtube test ford ignition system's ScannerDanner gets his but kicked by an 88 150 EEC IV Ignition

Dec 12, 2016 | 1993 Ford Taurus

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Hi it is me again with the 2007 chevy tahoe i change the fuel pump control module and the vehicle will not start when i turn on the key the check light staying on code p0602 what causing that?


P0602 CHEVROLET P0602 CHEVROLET - Powertrain Control Module Programming Error Repair Importance Level: 3/3 Repair Difficulty Level: 3/3 alt="What does this mean?"> Share alt="Share on Facebook"> alt="Share on Twitter"> alt="Share on Linkedin"> alt="Share on Google Plus"> alt="AutoCodes.com"> alt="Print Version"> alt="PDF Print"> alt="Share Code"> 0 alt="P0602 Chevrolet Comments"> ' Add Comment alt="Close Selection"> http://www.autocodes.com/p0602_chevrolet.html Forum Code Possible causes - Powertrain Control Module (PCM) not programed
- PCM program
- Faulty PCM
- Wrong PCM
alt="What does this mean?"> What does this mean? Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) P0602 Chevrolet Description This diagnostic trouble code (DTC) indicates that the Powertrain Control Module (PCM) internal EEPROM is not flashed with any vehicle software. If you install a service PCM and do not flash the EEPROM, the engine will not run. This DTC indicates that an un-flashed PCM causes the engine cranks but will not run situation.


Read more: http://www.autocodes.com/p0602_chevrolet.html#ixzz3xAfHr3TX

and a video


2006 08 Chevy Cobalt Transmission Control Module FIX Easy BCM Problem...

Jan 13, 2016 | Cars & Trucks

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I have a 93 tempo and it won't start. I've replaced the fuel punp, ignition switch and ignition cylinder. The check engine light doesn't even come on when I turn the key to the on position. Fuel pump...


With out doing any electrical test's , just off the top of my head , I'd say the CCRM - constant control relay module is the culprit ! This module houses the fuel pump relay , PCM relay , cooling fan relay an a couple others as well .It should be checked for battery voltage at a couple of place on the connector for the CCRM . An check the grounds as well . When you turn the ignition key to run it powers up the module , that should be checked for battery voltage also . The module is mounted to the driver side shock tower , in the engine compartment !

Mar 20, 2015 | Cars & Trucks

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1994 Ford Taurus GL 3.0L will not start. Cooling fan and fuel on constantly with key In "on" position. Has new relay control module. Check engine light does not come on when key is on.


I have always heard that a constantly running fuel pump and cooling fan is an indicator that your ecu is going bad, horrible words to hear i know but definitely do some research on this and if it is the problem luckily there are decent finds in scrap yards to be had for little money. hope this helps and sorry about the bad luck :(

Jan 29, 2013 | Cars & Trucks

1 Answer

2002 Grand Cherokee Larado AC cooling fan (small fan in front of radiator fan) stuck and was running after car was switched off. I had to disconnect the battery to get it to stop running. When I tried to...


IT DONT WORK THAT WHY. (on/off)
NO ENGINE STATED, SO on exact answers. 4.0L or 4.7L ???
The engine cooling and HVAC rules govern this (computer tables and logic)
the service manual cover that,
did you SCAN the PCM at the failure then scan it again after, no?
did you know some cars run the fans parked to prevent overheat soak damage to the engine and trans? all have hood sticker warning telling you to stay way from fans, , until fully cooled engine or pull battery neg lug for safety. just saying that so you are safe fiddling all cars.

the fan(s) run via truth tables, logic (computer)
if cold outside why run a fan?, and waste fuel and cause green house gasses for fun. or make noise for fun, answer it doesn't.
it runs the fan ONLY when needed, is the answser
and is very complex, the newer the jeep gets.

On most cars even as old as 1995 , the condensor fan control would stay off if ambient temps are below 50f. this is not new logic.
Chapter 24 covers HVAC. in The service manual SM.
not only that, you failed to test the AC per the SM and failed to scan the PCM to see if there are HVAC faults. causing this fan disablement's. on purpose.
this car come with 2 type HVAC, manual and ATZ (climate control fancy) the rules for each are not the same (potentially)
the PCM controls the radiator fan on the 4.0L with a relay.
so is 100% pure (ATZ/BCM/PCM) logic doing that.
the 4.7L has hydraulic motor powered engine cooling fan
as you many not know the A/C condensor rams hot AIR
to the front of the engine RAD and cause it to overheat
so the engine fan is very much part of this regulation system.
The AC will also shut down for many AC related errors
and will do so if the engine or transmission over heats.
Self preservation.
there are 3 , 4.0L systems, for fan control
clutch fan or electric and one has a PWM modulated fan control module (its a transistor not relay in this case)

her is what chapter 7 states
PWM FAN CONTROL MODULE -
4.0L
DESCRIPTION
The pulse width modulated (PWM) radiator cooling
fan relay is located behind the front bumper fascia
below the right headlamp.
OPERATION
The PWM relay is used to control the speed of the
electric radiator cooling fan. It allows for multiple fan
speeds. This allows for improved fan noise and A/C
performance, better engine cooling, and additional
vehicle power.
PWM relay operation is controlled by the Powertrain
Control Module (PCM). To operate the PWM
relay, the PCM looks at inputs from:
† Engine coolant temperature
† Ambient temperature from the body controller
† Vehicle speed
† Transmission oil temperature
† A/C switch position (A/C request)

the SM does not list all rule and tests for this device.

more..?
here more quotes from your missing book
If an open or shorted condition has developed in
the relay circuit controlling the electric radiator fan
or fan control solenoid circuit controling the hydraulic
fan, a Diagnostic Trouble Code (DTC) can be set.
If the problem is sensed in a monitored circuit
often enough to indicated an actual problem, a DTC
is stored. The DTC will be stored in the PCM memory
for eventual display to the service technician.

fans stuck on quotes
1. Fan control sensors inoperative.
1. Check for DTC's. Verify sensor readings.
2. Fan control solenoid stuck 9on9. 2. Check fan operation speeds. Refer to fan
speed operation table.

3. Fan control solenoid harness
damaged.
3. Check for DTC 1499. Repair as required.
4. Transmission temperature too high.
4. Check for transmission over temp. DTC.
5. Engine coolant temperature too high.
5. (a) Check coolant level. Correct level as required.
(b) Thermostat stuck. Replace thermostat.
(c) Water pump failed. Replace water pump.
(d) Coolant flow restricted. Clean radiator.
(e) Air flow over radiator obstructed.Remove
obstruction.


the 4.7 liter engine the fan speed is base on above
and says, A/C system pressures.
the 4.7 then can can run at 500 rpm even when OFF. (SM)

now how to test the fan.
get engine hot, (drive 10miles say)
then park, and lest engine idle until the engine overheats
it will (but not in alaska, dig?)
and then the fans come on at bout 225f .. (about this is ball park)
electric fans
if using a 4.7L say so, its totally DIFFERENT

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1 Answer

1986 Lincoln Towncar will not start. I can't hear the fuel pump priming when ignition is the run position; can anybody please help me?


try restting the inertia switch in the trunk. When you turn key to "ON", the fule pump will run for only 5 seonds if the engine does not start. Listen at the fuel tank for humming of the pump. The PCM, Powertrain Control Module controls the fuel pump relay. So, when you turn key on, the power relay powers up the PCM and the PCM powers up the fuel pump relay.

Jun 03, 2009 | 1986 Lincoln Town Car

2 Answers

Tail light are not working


fuses under hood
9ff1af1.gif
POWER DISTRIBUTION BOX Location Name Amp Circuits Protected A Trailer Tow 50 Fuse 32/Fuse 26/Electric Brake B Fan (Hi) 60 Cooling Fan (CCRM) C Start 60 Starter Solenoid/Fuse 30/Fuse 36/Fuse 2 D Ignition 60 Fuse 6/Fuse 12/
Fuse 8/Fuse 18/Fuse 14/
Fuse 24/Fuse 20/Fuse 21/Fuse 27/Fuse 33 E Rear
Blower/
RAS 60 Rear Heater Blower Motor
Rear Air Suspension F Seat 60 Power Seats G — — Not Used H Fan-Lo 40 Engine Cooling Fans J Power Accessory 60 Fuse 13/Fuse 25/
Fuse 1/Fuse 31/Fuse 37/
Fuse 40/Fuse 7/Fuse 19 K Light 60 Headlamps/Fuse 10/
Fuse 11/Fuse 3/Fuse 9/
Fuse 23/Fuse 29/Fuse 35/Fuse 41/Fuse 17 L ABS 60 ABS Control/Pump Motor Module M Heated
Backlight 60 Heated Backlite/Fuse 16/Fuse 28/Fuse 22 N Fuel 20 PCM/Fuel Pump/CCRM P — — Not Used R PCM 15 PCM Memory S PCM 30 AX4S/Cylinder Identification Sensor/EDIS Module/PCM Power/EGR Control/HEGO's/IAC/
Injectors/MAFS/VMV T Alt./Reg. 15 Generator U Air Bag 10 Air Bag (Dedicated) V Trans. Light 10 Transmission Indicator Light W Fan 10 PCM Fan Monitor X Diode — Hood Lamp Diode Y Relay — RH Trailer Turn/Stop/Hazard Lamps Z Relay — Powertrain Control Module AA Relay — Windshield Wiper Speed BB Relay — LH Trailer Turn/Stop/Hazard Lamps CC Relay — Windshield Washer Pump Motor DD Relay — Windshield Wiper Dynamic Brake/Run
The fuses are color-coded by amp rating.

Fuse Value Amps Color Code 4 Pink 5 Tan 7.5 Brown 10 Red 15 Light Blue 20 Yellow 25 Natural 30 Light Green 40 Orange 50 Red 60 Blue

Mar 14, 2009 | 1997 Ford Windstar

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