2021 HONDA CIVIC SEDAN check engine light

580
Handling the Unexpected
Engine Does Not Start
Checking the Engine
If the engine does not start, check the starter.
Starter conditionChecklist
Starter doesn’t turn or turns
over slowly.
The battery may be dead. Check
each of the items on the right and
respond accordingly.
Check for a message on the dr iver information interface.●If the To Start, Hold Remote Near Start Button message appears2If the Smart Entry Remote Battery is Weak P. 581
uMake sure the smart entry remote is in its operating range.2 ENGINE START/STOP Button Operating Range P. 153
Check the brightness of the interior lights.
Turn on the interior lights and check the brightness.
●If the interior lights are dim or do not come on at all2Battery P. 558●If the interior lights come on normally2 Fuses P. 595
The starter turns over normally
but the engine doesn’t start.
There may be a problem with a
fuse. Check each of the items on
the right and resp ond accordingly. Review the engine start procedure.
Follow its instructions, and try to start the engine again.
2
Starting the Engine P. 422, 425
Check the immobilizer system indicator.
When the immobilizer system indicator is blinking, the engine cannot be started.
2Immobilizer System P. 145
Check the fuel level.
There should be enough fuel in the tank.
2 Fuel Gauge P. 108
Check the fuses.
Check all fuses, or have the vehicle checked by a dealer.
2Inspecting and Changing Fuses P. 598
If the problem continues:2Emergency Towing P. 599
1Checking the Engine
If you must start the vehi cle immediately, use an
assisting vehicle or booster battery to jump start it.
2 If the Battery Is Dead P. 583
Models with smart entry system
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583Continued
Handling the Unexpected
If the Battery Is Dead
Jump Starting Procedure
Turn off the power to electric devices, such as audio and lights. Turn off the engine,
then open the hood. 1.Connect the first jumper cable to your
vehicle’s battery + terminal.
2. Connect the other end of the first jumper
cable to the booster battery + terminal.
u Use a 12-volt booster battery only.
u When using an automotive battery
charger to boost your 12-volt battery,
select a lower charging voltage than 15-
volt. Check the charger manual for the
proper setting.
3. Connect the second jumper cable to the
booster battery - terminal.
■Jump Starting Procedure1If the Battery Is Dead
Securely attach the jumper cables clips so that they
do not come off when the e ngine vibrates. Also be
careful not to tangle the ju mper cables or allow the
cable ends to touch each other while attaching or
detaching the jumper cables.
3WARNING
A battery can explode if you do not follow
the correct procedure, seriously injuring
anyone nearby.
Keep all sparks, open flames, and smoking
materials away from the battery.
Booster Battery
1.5 L engine models
2.0 L engine models
Booster Battery
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uuIf the Battery Is Dead uJump Starting Procedure
584
Handling the Unexpected
4. Connect the other end of the second
jumper cable to the engine mounting bolt
as shown. Do not connect this jumper cable
to any other part.
5. If your vehicle is connected to another
vehicle, start the assi sting vehicle’s engine
and increase its rpm slightly.
6. Attempt to start your vehicle’s engine. If it
turns over slowly, check that the jumper
cables have good metal-to-metal contact.1If the Battery Is Dead
Battery performance degrades in cold conditions and
may prevent the engi ne from starting.1.5 L engine models
2.0 L engine models
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589
Handling the Unexpected
Indicator, Coming On/Blinking
If the Low Oil Pressure Indicator Comes On
■Reasons for the indicator to come on
Comes on when the engine oil pressure is low.
■What to do as soon as the indicator comes on
1. Immediately park the vehicle on level ground in a safe place.
2. If necessary, turn the hazard warning lights on.
■What to do after parking the vehicle
1. Stop the engine and let it sit for approximately three minutes.
2. Open the hood and check the oil level.
u Add oil as necessary.
2 Oil Check P. 525
3.Start the engine and check th e low oil pressure indicator.
u The indicator goes off: Start driving again.
u The indicator does not go off within 10 seconds: Immediately stop
the engine and contact a dealer for repairs.
If the Charging System Indicator Comes On
■Reasons for the indicator to come on
Comes on when the battery is not being charged.
■What to do when th e indicator comes on
Turn off the climate control system, rear defogger, and other electrical
systems, and immediately co ntact a dealer for repairs.
1If the Low Oil Pressure Indicator Comes On
NOTICE
Running the engine with low oil pressure can cause
serious mechanical damage almost immediately.
1If the Charging System Indicator Comes On
If you need to stop temporarily, do not turn off the
engine. Restarting the engi ne may rapidly discharge
the battery.
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591
uuIndicator, Comi ng On/BlinkinguIf the Brake System Indicator (Red) Comes On or Blinks
Handling the Unexpected
If the Brake System Indicator (Red) Comes On or
Blinks
■Reasons for the indicator to come on
• The brake fluid is low.
• There is a malfunction in the brake system.
■What to do when the indicator comes on while driving
Depress the brake pedal lightly to check pedal pressure.
• If normal, check the brake fluid level the next time you stop.
• If abnormal, take immediate acti on. If necessary, downshift the
transmission to slow the vehicle using engine braking.
■Reason for the indicator to blink
• There is a problem with the electric parking brake system.
■What to do when the indicator blinks
Avoid using the parking brake and have your vehicle checked by a dealer
immediately.
1 If the Brake System Indicator (Red) Comes On or Blinks
Have your vehicle re paired immediately.
It is dangerous to drive with low brake fluid. If there
is no resistance from the brake pedal, stop
immediately in a safe plac e. If necessary downshift
the gears.
If the brake system indicator and ABS indicator come
on simultaneously, the elec tronic brake distribution
system is not working. Th is can result in vehicle
instability under sudden braking.
Have your vehicle inspecte d by a dealer immediately.
If the brake system indicator (red) blinks at the same
time when the brake system indicator (amber) comes
on, the parking br ake may not work.
Avoid using the parking brak e and have your vehicle
checked by a dealer immediately. 2 If the Brake System Indicator (Red) Comes
On or Blinks at the Same Time When the
Brake System Indicator (Amber) Comes On
P. 592
U.S.
Canada
(Red)
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595Continued
Handling the Unexpected
Fuses
Fuse Locations
If any electrical devices are not working,
turn the ignition switch to LOCK
(0*1 and
check to see if any appl icable fuse is blown.
Located near the battery. Push the tabs to
open the box.
Fuse locations are shown on the fuse box
cover. Locate the fuse in question by the
fuse number and box cover number.
■Engine Compartment Fuse Box
■Circuit protected and fuse rating
Circuit ProtectedAmps
1
Passenger’s Power Seat*/
Rear Seat Heaters*(60 A)
Cooling Fan*2(30 A)
Cooling Fan*3(50 A)
−−
IG Main*430 A
−*5−
Headlight High Beam Main30 A
Battery125 A
2
EPS70 A
IG Main 30 A*4
50 A*5
Fuse Box Option*(40 A)
Fuse Box 60 A
Front Wiper Motor30 A
Headlight Low Beam Main 30 A
3
Rear Defroster40 A
Starter Motor*430 A
−*5−
Fuse Box40 A
ABS/VSA Motor40 A
ABS/VSA FSR40 A
Blower Motor40 A
*1:Models with the smart entry system have an ENGINE START/STOP button
instead of an ignition switch.
*2:2.0L engine models
*3:1.5L engine models
*4:Models with smart entry system
*5:Models without smart entry system 4
−−
−−
−−
−−
5Cooling Fan5A
6Washer 15A
7FI Main15 A
8FI Sub 15A
9Stop Lights10 A
10 Injector*3(15 A)
11LAF5A
12 FI ECU 10 A
13Parking Lights10 A
14 Hazard 15 A
15IG Coil15 A
16 Transmission (15 A)
17Daytime Running Lights10 A
Circuit ProtectedAmps
* Not available on all models
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598
uuFuses uInspecting and Changing Fuses
Handling the Unexpected
Inspecting and Changing Fuses
1.Turn the ignition switch to LOCK (0*1. Turn
headlights and all accessories off.
2. Remove the fuse box cover.
3. Check the large fuse in the engine
compartment.
u If the fuse is blown, use a Phillips-head
screwdriver to remo ve the screw and
replace it with a new one.
4. Inspect the small fuses in the engine
compartment and the vehicle interior.
u If there is a blown fuse, remove it with
the fuse puller and replace it with a new
one.
*1: Models with the smart entry system have an ENGINE START/STOP button instead of an
ignition switch.
1 Inspecting and Changing Fuses
NOTICE
Replacing a fuse with on e that has a higher rating
greatly increases the chances of damaging the
electrical system.
Use the charts to locate the fuse in question and
confirm the specified amperage on the fuse label. 2 Fuse Locations P. 595
Replace fuse with a spare fuse of the same specified
amperage.
There is a fuse puller on the back of the engine
compartment fuse box cover.
Combined
Fuse Blown Fuse
Fuse Puller
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621
Index
Coolant (Engine)...................................... 531
Adding the Coolant ................................ 532
Overheating ............................................ 587
Creeping (Continuously Variable Transmission) .......................................... 431
Cup Holders .............................................. 184
Customer Service Information ................ 617
Customized Features ............... 115, 318, 325
D
Daytime Running Lights .......................... 161
Dead Battery ............................................ 583
Defaulting All the Settings ...................... 351
Defrosting the Windshield and Windows ................................................. 197
Devices that Emit Radio Waves ............... 609
Dimming
Headlights .............................................. 158
Rearview Mirror ...................................... 170
Dipstick (Engine Oil) ................................ 525
Directional Signals (Turn Signal) ............. 157
Display Setup .................................... 215, 250
Display/Information Button ............ 110, 228
Door Mirrors ............................................. 171
Doors ........................................................ 128
Auto Door Locking.................................. 141
Auto Door Unlocking .............................. 141
Door Open Message ........................... 37, 95
Keys........................................................ 128 Locking/Unlocking the Doors from
the Inside............................................... 138
Locking/Unlocking the Doors from the Outside............................................ 131
DOT Tire Quality Grading ........................ 551
Driver Information Interface ................... 109
Warning and Information Messages .......... 95
Driving ....................................................... 415
Braking .................................................... 494
Continuously Variable Transmission ......... 431
Shifting Position .............................. 432, 434
Starting the Engine .......................... 422, 425
Dust and Pollen Filter ............................... 562
E
Eco Assist® System ...................................... 11
ECON Button ............................................. 438
Elapsed Time ............................................. 112
Electric Power Steering (EPS) System Indicator ............................................ 85, 593
Electronic Stability Control (ESC) ............. 439
Emergency ................................................ 599
Emergency Engine Stop ........................... 582
Emergency Trunk Opener ................ 144, 601
Emissions Testing (Readiness Codes) ....... 611
Engine
Coolant ................................................... 531
If the Battery Is Dead ............................... 583
Oil ........................................................... 524
Starting ........................................... 422, 425 Switch Buzzer.......................................... 152
Engine Coolant ......................................... 531
Adding the Coolant................................. 532
Overheating ............................................ 587
Temperature Gauge ................................ 108
Engine Oil ................................................. 524
Adding .................................................... 527
Checking................................................. 525
Displaying Maintenance Minder Information ........................................... 516
Low Oil Pressure Indicator ................. 81, 589
Recommended Engine Oil ....................... 524
ENGINE START/STOP Button .................... 153
Exhaust Gas Hazard (Carbon Monoxide) .. 75
Exterior Care (Cleaning) ........................... 565
Exterior Mirrors ........................................ 171
F
Features.................................................... 201
Filters
Dust and Pollen ....................................... 562
Oil ........................................................... 528
Flat Tire ..................................................... 573
Floor Mats ................................................. 564
Fluids Brake ...................................................... 534
Continuously Variable Transmission (CVT) ..................................................... 533
Engine Coolant ....................................... 531
Windshield Washer ................................. 535
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