
Protected componentsFuse amp ratingFuse or relay number
Cooling fan module.50A MidiF1
Electric water pump.50A MidiF2
Body control module supply 1.50A MidiF3
Body control module supply 2.50A MidiF4
Not used.—F5
Not used.—F6
Anti-lock brake system pump.40A**F7
Anti-lock brake system valve.30A**F8
Vacuum pump.40A**F9
Heater blower motor.40A**F10
Engine management.30A**F11
Not used.—F12
Powertrain control module relay.25A**F13
Rear wiper.20A**F14
Body control module KL30 supply.30A**F15
Body control module 15 feed.20A**F16
Transmission oil pump (C-MAX Energi).20A**F17
Front wiper motor.20A**F18
Anti-lock brake system and electronicstability program module.5A*F19
Horn.15A*F20
Stop light switch.5A*F21
Vacuum pump monitoring.5A*F22
Engine control module 15.5A*F23Powertrain control module 15.Transmission oil pump 15.
Relay coils.5A*F24Light switch module.
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Fuses

Engine coolant reservoir cap. See Engine Coolant Check (page 223).A
Engine oil filler cap. See Engine Oil Check (page 222).B
Engine oil dipstick. See Engine Oil Dipstick (page 222).C
Engine air filter cover. See Changing the Engine Air Filter (page 238).D
Inverter system controller.E
Brake fluid reservoir cap. See Brake Fluid Check (page 227).F
Power distribution box. See Fuses (page 209).G
Inverter system controller coolant reservoir cap.H
Windshield washer fluid reservoir cap. See Washer Fluid Check (page 227).I
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HIE162485

UNDER HOOD OVERVIEW -
PLUG-IN HYBRID ELECTRIC
VEHICLE (PHEV)
WARNING
The inverter system controllercontains various high-voltagecomponents that can cause seriousbodily harm or death. The inverter systemcontroller is not serviceable and shouldnever be touched, probed, or tamperedwith.
Note:Do not attempt to service any of thehigh-voltage components or wiring. Foreasier identification, the high-voltage wiringinsulation is color coated orange.
Engine coolant reservoir cap. See Engine Coolant Check (page 223).A
Engine oil filler cap. See Engine Oil Check (page 222).B
Engine oil dipstick. See Engine Oil Dipstick (page 222).C
Engine air filter cover. See Changing the Engine Air Filter (page 238).D
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Inverter system controller.E
Brake fluid reservoir cap. See Brake Fluid Check (page 227).F
Power distribution box. See Fuses (page 209).G
Inverter system controller coolant reservoir cap.H
Windshield washer fluid reservoir cap. See Washer Fluid Check (page 227).I
ENGINE OIL DIPSTICK
MINA
MAXB
ENGINE OIL CHECK
Check the level before starting the engineand make sure that the level is betweenthe MIN and the MAX marks.
1. Make sure that your vehicle is on levelground.
2. Switch the engine off and wait 10minutes for the oil to drain into the oilpan.
3. Remove the dipstick and wipe it witha clean, lint-free cloth. Replace thedipstick and remove it again to checkthe oil level.
If the oil level is at the minimum mark, addoil immediately.
Adding Engine Oil
Note:Do not remove the filler cap whenthe engine is running.
Note:Do not add oil further than the MAXmark. Oil levels above the MAX mark maycause engine damage.
Only use oils certified for gasoline enginesby the American Petroleum Institute (API).An oil with this trademark symbolconforms to the current engine andemission system protection standards andfuel economy requirements of theInternational Lubricants SpecificationAdvisory Council (ILSAC), comprised ofU.S. and Japanese automobilemanufacturers.
1. Remove the filler cap.
2. Add engine oil that meets the Fordspecifications. See Capacities andSpecifications (page 276).
3. Wipe off any spilled oil.
4. Replace the filler cap. Turn it until youfeel a strong resistance.
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Low Engine Use (If Equipped)
The low engine use mode is equipped onEnergi models only. The low engine usemode keeps the engine oil quality in goodcondition when you drive your vehicle withlimited engine use. If your vehicle is in lowengine use mode when you start thevehicle, a message appears in theinformation display. When your vehicle isin low engine use mode, your vehicle runsthe engine as necessary.
Selecting EV Now mode when your vehicleis in the low engine use mode suspendsthe low engine use mode for as long as youcontinue driving your vehicle. The lowengine use mode resumes the next timeyou start your vehicle.
Changing the engine oil and resetting theoil life monitoring system suspends the lowengine use mode.
ENGINE COOLANT CHECK
WARNINGS
Do not add engine coolant when theengine is hot. Steam and scaldingliquids released from a hot coolingsystem can burn you badly. Also, you canbe burned if you spill coolant on hot engineparts.
Do not put engine coolant in thewindshield washer fluid container. Ifsprayed on the windshield, enginecoolant could make it difficult to seethrough the windshield.
To reduce the risk of personal injury,make sure the engine is cool beforeunscrewing the coolant pressurerelief cap. The cooling system is underpressure; steam and hot liquid can comeout forcefully when the cap is loosenedslightly.
Do not add coolant further than theMAX mark.
Engine Coolant and InverterSystem Controller Coolant
Your vehicle has two separate coolingsystems. One is for cooling the engine andone is for cooling the inverter systemcontroller that is specific to the hybridoperating system. The two systemsoperate similarly, with the inverter systemcontroller cooling system generallyoperating at a lower temperature andpressure.
Checking the Engine Coolant
When the engine is cold, check theconcentration and level of the enginecoolant at the intervals listed in thescheduled maintenance information. SeeScheduled Maintenance (page 348).
Note:Make sure that the level is betweenthe MIN and MAX marks on the enginecoolant reservoir.
Note:Coolant expands when it is hot. Thelevel may extend beyond the MAX mark.
Note:If the level is at the MIN mark, belowthe MIN mark, or empty, add coolantimmediately. See Adding Engine Coolantin this chapter.
The coolant concentration should bemaintained within 48% to 50%, whichequates to a freeze point between -30°F(-34°C) and -34°F (-37°C).
Note:For best results, coolantconcentration should be tested with arefractometer such as Robinair® Coolantand Battery Refractometer 75240. We donot recommend the use of hydrometers orcoolant test strips for measuring coolantconcentrations.
Note:Automotive fluids are notinterchangeable. Do not use engine coolantor antifreeze or windshield washer fluidoutside of its specified function and vehiclelocation.
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Maintenance

2. Slightly rotate the wiper blade.
3. Disengage the wiper blade from thewiper arm.
4. Remove the wiper blade.
5. Install in the reverse order.
Note:Make sure that the wiper blade locksinto place.
ADJUSTING THE HEADLAMPS
Vertical Aim Adjustment
The headlamps on your vehicle areproperly aimed at the assembly plant. Ifyour vehicle has been in an accident, thealignment of your headlamps should bechecked by your authorized dealer.
8 feet (2.4 meters)A
Center height of lamp to groundB
25 feet (7.6 meters)C
Horizontal reference lineD
1. Park the vehicle directly in front of awall or screen on a level surface,approximately 25 feet (7.6 meters)away.
Note:To see a clearer light pattern foradjusting, you may want to block the lightfrom one headlamp while adjusting theother.
2. Measure the height of the headlampbulb center from the ground and markan 8 foot (2.4 meter) horizontalreference line on the vertical wall orscreen at this height.
3. Turn on the low beam headlamps toilluminate the wall or screen and openthe hood.
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4. On the wall or screen you will observea flat zone of high intensity lightlocated at the top of the right handportion of the beam pattern. If the topedge of the high intensity light zone isnot at the horizontal reference line, theheadlamp will need to be adjusted.
5. Locate the vertical adjuster on eachheadlamp. Using a Phillips #2screwdriver, turn the adjuster eitherclockwise or counterclockwise in orderto aim the headlamp. The horizontaledge of the brighter light should touchthe horizontal reference line.
6.Close the hood and turn off the lamps.
Horizontal Aim Adjustment
Horizontal aim is not required for thisvehicle and is non-adjustable.
REMOVING A HEADLAMP
1.Switch all of the lamps and the ignitionoff.
2. Remove the screws that secure thelamp assembly.
3. Pull the headlamp toward the front ofyour vehicle to disengage it from itslocating points and then lift theheadlamp up.
4. Disconnect the electrical connector.
CHANGING A BULB
Replacing Headlamp Bulbs
WARNING
Handle a halogen headlamp bulbcarefully and keep out of children’sreach. Grasp the bulb by only itsplastic base and do not touch the glass.The oil from your hand could cause thebulb to break the next time the headlampsare operated.
Note:If the bulb is accidentally touched, itshould be cleaned with rubbing alcoholbefore being used.
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•Do not allow wax to come in contactwith any non-body (low-gloss black)colored trim. The wax will discolor orstain the parts over time.
•Roof racks.
•Bumpers.
•Grained door handles.
•Side moldings.
•Mirror housings.
•Windshield cowl area.
•Do not apply wax to glass areas.
•After waxing, your car's paint shouldfeel smooth, and be free of streaks andsmudges.
CLEANING THE ENGINE
Engines are more efficient when they areclean because grease and dirt buildup keepthe engine warmer than normal.
When washing:
•Take care when using a power washerto clean the engine. The high-pressurefluid could penetrate the sealed partsand cause damage.
•Do not spray a hot engine with coldwater to avoid cracking the engineblock or other engine components.
•Spray Motorcraft Engine Shampoo andDegreaser on all parts that requirecleaning and pressure rinse clean. InCanada, use Motorcraft EngineShampoo.
•Never wash or rinse the engine while itis hot or running; water in the runningengine may cause internal damage.
•Never wash or rinse any ignition coil,spark plug wire or spark plug well, orthe area in and around these locations.
•Cover the battery, power distributionbox, and air filter assembly to preventwater damage when cleaning theengine.
CLEANING THE WINDOWS AND
WIPER BLADES
Car wash chemicals and environmentalfallout can result in windshield and wiperblade contamination. Dirty windshield andwipers will result in poor windshield wiperoperation. Keep the windshield and wiperblades clean to maintain windshield wiperperformance.
To clean the windshield and wiper blades:
•Clean the windshield with anon-abrasive glass cleaner. Whencleaning the interior of the windshield,avoid getting any glass cleaner on theinstrument panel or door panels. Wipeany glass cleaner off these surfacesimmediately.
•For windshields contaminated withtree sap, chemicals, wax or bugs, cleanthe entire windshield using steel wool(no greater than 0000 grade) in acircular motion and rinse with water.
•Clean the wiper blades with isopropylrubbing alcohol or windshield washerconcentrate.
Note: Do not use razor blades or othersharp objects to clean or remove decalsfrom the inside of the heated rear window.The vehicle warranty does not coverdamage caused to the heated rear windowgrid lines.
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Vehicle Care