Question about 2005 Citroen C5 2.0

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Is there a fuel system relay in the electrical daigram?

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Yes, there is.

Posted on Aug 20, 2015

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3 Answers

Catera 2000 Catera wont start, acts like no gas, fuel pump not heard,


https://s10.postimg.org/3ufs1il6x/fuel_pump.jpg

Click on the link for fuel pump wiring, note the fuses. Use a gage and check fuel pressure.
Key on engine off, can you hear the fuel pump run for a few seconds? If not, have to check wiring circuits and fuses--grounds, possibly a fuel pump issue?
Engine cranking do you have spark at the plugs, I'm just trying to decide if more than one issue? Any applicable trouble codes?

Jun 24, 2017 | Cars & Trucks

1 Answer

2006 crown victoria fuel pump relay location


In the under hood fuse box . Do you know about ford electronic returnless fuel system ? It's computer controlled , has a fuel pump dirver module which controls the fuel pump with a duty cycle . Watch this video
Ford Electronic Returnless Fuel System Diagnosis Part 1 Ford

Ford Electronic Returnless Fuel System Diagnosis Part 2

you can find relay location at
http://www.bbbind.com/free_tsb.html Look at electrical distribution , fuse panel .

Mar 17, 2017 | Cars & Trucks

1 Answer

My fuel pump is good, but foe some reason it's not getting any electrical power from the line....what should I do?


Well Jason you could have a bad fuel pump relay in the underhood electrical center . The PCM - powertrain control module turns on the relay . An your vehicle has a anti-theft system probably ! Is there A security light lit on the dash ? If not pull the fuel pump relay out of the electrical center an check for power an grounds , there will be two grounds an one battery voltage an one open . The open will be power when cranking the engine , this is the control side from the PCM . If you look on the side of the relay there should be a circuit diagram , an on the bottom the pin's should be marked 30 , 87 this is the fuel pump side of the relay. 87 is battery voltage , 87 goes to the fuel pump . Pin's 85 , 86 . 86 is ground an 85 is power from the PCM when cranking ! GM Fuel Pump Relay Testing

May 09, 2015 | 1997 Pontiac Grand Prix

1 Answer

Fuse for the alarm system


Here is the full list of fuses for you! and for the car.

Fuses on E-box, on left in Engine Compartment

Fuse 1 - Not assigned

Fuse 2 - 10/15A - Engine control unit

Fuse 3 - 5A - Radiator fan control unit

Fuse 4 - 5/10/15A - Lambda probe heater,
Lambda probe 1 heater after
catalytic converter

Fuse 5 - 10A, 20A - Lambda probe heater1,
Lambda probe 1 heater after
catalytic converter,
Fuel system diagnostic pump,
Charge pressure control solenoid
valve,
Exhaust gas recirculation cooler
change-over valve,
Crankcase breather heater element,
Vacuum pump for brakes

Fuse 6 - 5A, 10A,15A - Fuel system diagnostic pump,
Throttle valve module,
Activated charcoal filter system
solenoid valve 1,
Continued coolant circulation pump,
Auxiliary air heater heating element

Fuse 7 - 20A, 5A - Ignition transformer,
Fuel pressure regulating valve,
Fuel metering valve

Fuse 8 - 10A - Throttle valve module,
Activated charcoal filter system
solenoid valve 1

Fuse 9 - 5A - Automatic glow period control unit,
Electric fuel pump 2 relay,
Fuel pump relay

Fuse 10 - 5A - Speedometer sender,
Brake light switch

Fuse 11 - Not assigned

Fuse 12 - 5A - Coolant circulation pump

Fuse 13 - 5A - Water pump

Fuse 14 - 5A - Engine control unit

Fuse 15 - 30A - Voltage stabiliser

Fuse 16 - 30A - ABS control unit

Fuse 17 - 30A - Automatic gearbox control unit

Fuse 18 - 20A - Automatic gearbox control unit

Fuse 19 - 1A - Onboard supply control unit

Fuse 20 - 30A - Onboard supply control unit (AW0)
Automatic intermittent wash and
wipe relay (AW1)

Fuse 21 - 50A - Secondary air pump motor

Fuse 22 - Not assigned

Fuse 23 - 40A - ABS control unit

Fuse 24 - 50A - Trailer detector control unit

Fuse 25 - 50A - Terminal 15 voltage supply relay 2

Fuse 26 - 60A - Automatic glow period control unit

Fuse 27 - 60A - Radiator fan

Fuse 28 - 40A - Onboard supply control unit (AW1)

Fuse 29 - 40A - Onboard supply control unit (AW1)

Fuse 30 - 50A - Terminal 75 voltage supply relay 1

Fuse 31 - 30A - Amplifier

Fuse 32 - Not assigned

**************************************************

Fuse assignment - Interior Fuse Panel

Fuse 1 - Not used

Fuse 2 - 5A - Electronic steering column lock control module

Fuse 3 - 10A - Instrument cluster control module

Fuse 4 - Not used

Fuse 5 - Not used

Fuse 6 - 10A - Vehicle electrical system control module,
Interior ceiling lights,
Tail lights

Fuse 7 - 5A - Fog lamp relay,
Instrument panel and switch illumination dimmer switch,
License plate lamps,
Vehicle electrical system control module

Fuse 8 - 7.5A - Windshield and headlamp washer pump switch,
Windshield washer pump

Fuse 9 - 5A - Airbag control module

Fuse 10 - 10A - Right steering column switch

Fuse 11 - Not used

Fuse 12 - Not used

Fuse 13 - 5A - Automatic dimming interior rearview mirror,
Light recognition sensor,
Parking aid control module,
Air quality sensor,
High pressure sensor,
Climatronic control unit,
Tire pressure monitoring button,
Back-up lamp switch,
Left washer nozzle heater,
Right washer nozzle heater,
28-pin connector

Fuse 14 4- 10A - Left steering column switch,
ABS control module,
Light switch,
Airbag spiral spring/return spring with slip ring,
Fuel pump control module,
Data bus on board diagnostic interface

Fuse 15 - 10A - 16-pin connector (diagnostic connector),
Instrument panel and switch illumination dimmer switch,
Headlamp range control adjuster,
Auxiliary heater operation relay,
Mass airflow sensor,
Positive crankcase ventilation heating element,
Left front headlamp,
Left headlamp beam adjustment motor,
Right front headlamp,
Right headlamp beam adjustment motor,

Fuse 16 - 10A - Engine control module

Fuse 17 - Not used

Fuse 18 - 15A - Left front headlamp

Fuse 19 - 15A - Right front headlamp

Fuse 20 - 10A - Automatic transmission control module,
Selector lever sensor system control module,
Tiptronic switch,
Climatronic control unit,
Ignition/starter switch

Fuse 21 - Not used

Fuse 22 - 10A - Ignition/starter switch,
Converter box,
Alarm horn,
Interior monitoring sensor,
Alarm horn relay,
Dual tone horn relay

Fuse 23 - 10A - Vehicle electrical system control module,
16-pin connector (diagnostic connector),
Light switch,
Rain/light recognition sensor,
Compass magnetic field sensor,

Fuse 24 - 10A - Vehicle electrical system control module,
Access/start authorization control module

Fuse 25 - 15A - Automatic transmission control module,
Selector lever sensor system control module,
Multifunction transmission range switch

Fuse 26 - 15A - Brake system vacuum pump

Fuse 27 - Not used

Fuse 28 - 40A - Auxiliary heater operation relay

Fuse 29 - 1A - Vehicle electrical system control module,

Fuse 30 - 20A - Cigarette lighter,
12 V socket,
12 V socket 2,
Blocking diode

Fuse 31 - 30A - Light switch

Fuse 32 - 20A - Light switch

Fuse 33 - 40A - Heater/heat output switch,
Fresh air blower relay,
A/C control module,
Fresh air blower switch

Fuse 34 - 15A - Left front headlamp,
Left front headlamp,
Instrument cluster control module

Fuse 35 - 10A - Steering column electronics control module,
Instrument cluster control module,
Signal horn activation,
Data bus on board diagnostic interface

Fuse 36 - 25A - Vehicle electrical system control module

Fuse 37 - 15A - Left front headlamp DRL

Fuse 38 - 15A - Right front headlamp DRL

Fuse 39 - 15A - Low beam relay

Fuse 40 - 15A - Towing recognition control module

Fuse 41 - 15A - Towing recognition control module

Fuse 42 - 20A - Towing recognition control module

Fuse 43 - 30A - Front passenger door control module

Fuse 44 - A25 - Rear window defogger relay,
Vehicle electrical system control module

Fuse 45 - 30A - Driver door control module,
Front passenger door control module

Fuse 46 - 30A - Left rear door control module,
Right rear door control module

Fuse 47 - 15A - Fuel pump control module,
Fuel pump relay,
Fuel primer relay

Fuse 48 - 20A - Vehicle electrical system control module,
Vehicle electrical system control module,
Vehicle electrical system control module,

Fuse 49 - 20A - Climatronic control unit,
A/C control module

Fuse 50 - 30A - Front seat heating control module

Fuse 51 - 30A - Power sunroof control module

Fuse 52 - 20A - Dual tone horn relay

Fuse 53 - 15A - Front seat heating control module

Fuse 54 - 15A - Fog lamp relay

Fuse 55 - 20A - Light switch,
Left steering column switch

Fuse 56 - Not used

Fuse 57 - 15A - Radio,
Radio/navigation display unit control module

Fuse 58 - 1A, 30A - Telephone transceiver
DC/AC converter with socket, 12V-230V

Fuse 59 - 30A - Amplifier

Fuse 60 - 30A - Auxiliary heater control module


Hope this helps

--N

May 31, 2014 | 2010 Volkswagen Jetta

1 Answer

2000 buick regal. Losing fuel pump voltage


http://www.bbbind.com/free_tsb.html free wiring diagrams ! Enter vehicle info. year , make , model an engine size . Under system click on engine ,then under subsystem click on fuel controls . Then click the search button , then click blue link .The 7th diagram down shows two fuel pump relays , This I have not seen before ! One is speed cont. relay an the other is just fuel pump relay ? The speed control one has a resistor in the electrical circuit . That is way your droping voltage .
Fuel Pump Electrical Circuit Diagnosis (VIN K)
Fuel Pump Electrical Circuit Diagnosis (VIN 1)

The PCM alters fuel pump speed by energizing the fuel pump speed control relay. Under normal conditions, the fuel pump speed control relay is energized. The applied voltage to the fuel pump is controlled by a resistor assembly. When higher fuel volume is required due to increased engine load, MAP sensor value over 90 kPa the PCM de-energizes the fuel pump speed control relay circuit. The increased voltage to the in-tank fuel pump allows a higher volume of fuel to be delivered to the fuel rail. The PCM also compensates for low system voltage by energizing the fuel pump speed control relay.

Have it check for codes !
Did DTC P0230 or DTC 1260 set?
--
Go to DTC P0230 Fuel Pump Relay Control Circuit or DTC P1260 Fuel Pump Speed Relay Control Circuit
Go to Step 3

May 05, 2017 | Buick Regal Cars & Trucks

1 Answer

Car will turn over but won't start. Through the


No noise from fuel pump when you turn over the car .First thing get voltage at fuel pump relay checked, is there 12 volt to the relay.If no, then problem is again the relay.--------- To reconfirm the problem, try other test, that is remove the relay and by pass the relay terminals with a jumper wire .Then with 12 volt external battery give power to fuel pump connector and see, if the fuel pump starts, then its clear that fuel pump relay is faulty.----------- Also other problem can be fuel pump inertia switch.If the inertia switch is faulty then also fuel pump will not start.-------- The fuel pump relay on a 1995 Ford Explorer is in the power distribution
box, in the engine compartment, driver's side near the firewall.----------
The fuel pump inertia switch is in the right front passenger area
it is below the dash but above the carpet in the right hand corner.--------
Its a push button type inertia switch.
--------
Fuel Pump Activation
When ignition switch is turned to START position, PCM operates fuel pump relay to provide fuel for starting engine. PCM senses engine speed and shuts off fuel pump by opening ground circuit to fuel pump relay when engine stops or engine speed drops to less than 120 RPM. When ignition switch is in ON position, EEC power relay is energized (contacts closed). Power is provided to fuel pump relay and timer in PCM. Fuel pump receives power through fuel pump relay contacts.
Inertia Fuel Shutoff (IFS) Switch
All models use an electrical interrupt switch in fuel system. During a collision or vehicle rollover, electrical contacts within inertia switch open, shutting off fuel supply to electric fuel pump. Fuel supply is interrupted even when engine is running.
A reset button is located on switch assembly. If electrical circuit trips, vehicle will not restart until switch is reset. Fuel system should be inspected before resetting switch.
IFS switch is located under instrument panel, near right side of transmission hump.
----------- If the fuel pump relay, the inertia switch and fuel pump all checked ok, and fuel pump is working with direct 12 volt source to fuel pump.Then problem relates to computer.The computer (power control module, PCM) is faulty and has to be replaced.--------- This will help.Thanks.Helpmech.

Jul 17, 2011 | 1995 Ford Explorer

2 Answers

My 93 cougar like sputters when running. no power, and idles real hard. what could this be?


I'm guessing fuel pump is going. Check for 40 PSI pressure with fuel pressure gauge. Check in engine comaprtment.
Section 10-01: Fuel Tank, Filters, Lines and Electric Fuel Pump 1995 Thunderbird, Cougar Workshop Manual
DESCRIPTION AND OPERATION Fuel Pump, Electric The electric fuel pump:
  • Is part of the fuel pump module.
  • Is located in an internal reservoir in the polyethylene fuel tank (9002) .
  • Is mounted with its inlet at the bottom of the reservoir.
  • Is designed to increase satisfactory pump operation during extreme vehicle maneuvers and steep climbs with low fuel levels.
  • The high-pressure fuel pump module on the 3.8L SFI and 4.6L-2V engines can supply 60 liters (15.9 gal) of fuel per hour at a working pressure of 269.0 kPa (39 psi).
  • The fuel pump module on the 3.8L SC SFI engine can supply 125 liters (29.0 gal) at the same rate and pressure.
  • The fuel pump module has an internal check valve to maintain pressure in the system after the engine is shut down.
  • The fuel pump module also has an internal release valve to provide protection from too much pressure if fuel flow becomes clogged in the fuel filter (9155) , the fuel line is damaged, or other factors.
  • Overpressure is limited to 850 kPa (123 psi) and reduced fuel flow will result if the pressure relief valve is activated.
  • The fuel pump module is protected at its inlet by a nylon fuel filter element (9365) which filters contaminants which could plug or damage fuel pump components.
  • The fuel filter element simultaneously allows passage of small quantities of water which may accumulate within the tank reservoir.
  • The electrical system has a fuel pump control relay in the powertrain control module (PCM) (12A650) which provides power to the fuel pump module through an inertia fuel shutoff switch (IFS switch) (9341) that is normally closed.
  • The electrical system provides power to the fuel pump module through two relays:
    • Fuel pump power relay.
    • PCM power relay.
The current path depends on operating conditions.
  • When the ignition switch (11572) is OFF, contacts of both relays are open.
  • When the ignition switch is first turned to RUN, the PCM power relay energizes and closes its contacts.
  • Power is sent to the fuel pump relay and a timing device in the powertrain control module .
  • The fuel pump module runs through the contacts of the fuel pump relay.
  • If ignition switch is not turned to START, the timing device in the powertrain control module will open ground Circuit 57 after about a second.
  • Opening the ground circuit deenergizes the fuel pump relay, which opens its contacts and de-energizes the fuel pump.
  • The circuitry provides pre-pressurization of the fuel system.
  • When the ignition switch is turned to START, the powertrain control module operates the fuel pump relay to provide fuel while cranking.
  • After the engine starts and the ignition switch is ON, power to the fuel pump module is again supplied through the fuel pump relay. The powertrain control module senses engine speed and shuts the fuel pump module OFF by opening the ground circuit to the fuel pump relay when the engine stops or is below 120 rpm.



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Oct 26, 2010 | 1993 Mercury Cougar

2 Answers

Engine started and died. Will not restart. Seems to be electrical issue - what fuses or relays should be checked? Thanks.


Does it run if you put gas into the throttle body? If so, then it may be a fuel pump going bad, or the circuit to the fuel pump is dead.

Test for power at the fuel pump, then, when ignition key is on.

Test for pressure of fuel using a gauge at the fuel rail.
---
Basic Fuel System Diagnosis Two of the most import diagnostic checks, when dealing with a driveability problem involve the ignition and the fuel systems. The questions most technicians attempt to answer first are "is there spark?'' and "is there fuel?'' This often leads to solving most basic problems. For ignition system diagnostic testing, please refer to the information on engine electrical components and ignition systems found earlier in this manual. If the ignition system checks out (there is spark), then you must determine if the fuel system is operating properly (is there fuel?).
---
chv_sub_25_undr-hd_fuse_blk_lbl.gif

The fuel pump relay under the hood in the fuse box is located in the middle.

Jul 17, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

01 Dakota 4.7 45rfe just lost forward & reverse


daigram right side window ,with electric motor

Nov 25, 2008 | 2001 Dodge Dakota

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