check engine HONDA ACCORD SEDAN 2021 (in English) Workshop Manual

622
Handling the Unexpected
Fuses
Fuse Locations
If any electrical devices are not working, set the power mode to VEHICLE OFF and
check to see if any app licable 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
Tab

627
uuFuses uInspecting and Changing Fuses
Handling the Unexpected
Inspecting and Changing Fuses
1. Set the power mode to VEHICLE OFF. Turn
headlights and all accessories off.
2. Open the fuse box cover in the engine
compartment.
3. Check the large fuse in the engine
compartment.
u If the fuse is blown, use a Phillips-head
screwdriver to remove the screw and
replace it with a new one.
4. Inspect the small fu ses 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.1Inspecting 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. 622
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

641Continued
Information
Emissions Testing
Testing of Readiness Codes
Your vehicle has readiness code as part of the onboard self diagnostic system. Some
states use these codes for testing to ve rify whether your vehicle’s emissions
components are working properly.
The codes may not be read properly if testing is performed just after the battery has
gone dead or been disconnected.
To check if they are set, set the power mo de to ON, without starting the engine. The
malfunction indicator lamp will come on for several seconds. If it then goes off, the
readiness codes are set. If it blinks fi ve times, the readiness codes are not set.
If you are required to have your vehicle te sted before the readiness codes are ready,
prepare the vehicle for retest ing by doing the following:
1. Fill the gas tank to approximately 3/4 full.
2. Park the vehicle and leave the engine off for 6 hours or more.
3. Make sure the ambient temperature is between 40°F and 95°F (4°C and 35°C).
4. Start the engine without touching the ac celerator pedal, and let it idle for 20
seconds.
5. Keep the vehicle in
(P. Increase the engine speed to 2,000 rpm, and hold it there
for about 3 minutes.
6. Let the engine idle with your foot off the accelerator for 20 seconds.
1Testing of Readiness Codes
The readiness codes are erased when the battery is
disconnected, and set again onl y after several days of
driving under a variety of conditions.
If a testing facility determines that the readiness
codes are not set, you may be requested to return at
a later date to complete the test.
If the testing facility determines the readiness codes
are still not set, see a dealer.

650
Index
Shift Lever Does Not Move....................... 611
Shifting............................................ 429, 431
Controls ..................................................... 165
Coolant (Engine) ....................................... 561
Adding to the Engine Coolant Reserve
Tank ...................................................... 561
Adding to the Radiator ............................ 562
Overheating............................................. 613
Creeping (Automatic Transmission/ Continuously Variable Transmission) ..... 421
Cross Traffic Monitor ................................ 527
Cup Holders ............................................... 227
Customer Service Information ................. 647
Customized Features ................................ 352
D
Daytime Running Lights ........................... 198
Dead Battery ............................................. 608
Defaulting All the Settings ...................... 371
Defrosting the Windshield and
Windows .................................................. 241
Devices that Emit Radio Waves ................ 639
Dimming
Headlights ............................................... 195
Rearview Mirror ....................................... 210
Dipstick (Engine Oil) ................................. 554
Directional Signals (Turn Signal) .............. 194
Door Mirrors ............................................. 211 Doors
......................................................... 167
Auto Door Locking .................................. 180
Auto Door Unlocking .............................. 180
Door and Trunk Open Message ................. 37
Keys ........................................................ 167
Locking/Unlocking the Doors from the Inside ...................................... 177
Locking/Unlocking the Doors
from the Outside ................................... 170
Lockout Prevention System ...................... 176
DOT Tire Quality Grading ........................ 580
Driver Attention Monitor ........................ 154
Driver Information Interface ................... 140
Switching the Display .............................. 140
Warning and Information Messages ........ 109
Driving ...................................................... 403
Automatic Transmission/Continuously Variable
Transmission.......................................... 421
Braking ................................................... 510
Shifting Position ...................... 422, 429, 431
Starting the Engine.................................. 414
Driving Position Memory System ............ 207
Driving Support Information ................... 157
Dust and Pollen Filter ............................... 589
E
Eco Assist® System ...................................... 12
ECON Button ............................................ 436
Econ Mode
Indicator.................................................. 100 Elapsed Time
............................................ 147
Electric Power Steering (EPS) System
Indicator ........................................... 95, 619
Electronic Stability Control (ESC) ............ 443
Emergency ................................................ 628
Emergency Engine Stop ........................... 607
Emergency Trunk Opener ....................... 183
Emissions Testing (Readiness Codes) ...... 641
Engine ....................................................... 638
Coolant .................................................. 561
Jump Starting ......................................... 608
Oil .......................................................... 553
Starting................................................... 414
Engine Coolant ........................................ 561
Adding to the Engine Coolant Reserve Tank ..................................................... 561
Adding to the Radiator ........................... 562
Overheating ............................................ 613
Temperature Gauge ................................ 139
Engine Oil ................................................. 553
Adding ................................................... 556
Checking ................................................ 554
Displaying Oil Life ................................... 544
Low Oil Pressure Warning ....................... 615
Recommended Engine Oil ....................... 553
ENGINE START/STOP Button .................... 191
EPS (Electric Power Steering) System ...... 619
Exhaust Gas Hazard
(Carbon Monoxide) .................................. 78
Exterior Care (Cleaning) .......................... 592
Exterior Mirrors ........................................ 211

653
Index
L
Lane Keeping Assist System (LKAS)........ 488
Language (HFL) ........................................ 377
LATCH (Child Seats) ................................... 69
Lights ................................................ 195, 566
Auto High-Beam ..................................... 199
Automatic............................................... 196
Bulb Replacement ................................... 566
Daytime Running Lights .......................... 198
Fog Lights ............................................... 197
High Beam Indicator ................................. 97
Interior.................................................... 223
Light Switches......................................... 195
Lights On Indicator.................................... 97
Turn Signals ............................................ 194
Load Limits ............................................... 407
Locking/Unlocking ................................... 167
Auto Door Locking/Unlocking ................. 180
Childproof Door Locks ............................ 179
From Inside ............................................. 177
From Outside .......................................... 170
Keys........................................................ 167
Using a Key............................................. 175
Lockout Prevention System ..................... 176
Low Battery Charge ................................. 615
Low Fuel Indicator ..................................... 93
Low Oil Pressure Warning ....................... 615
Low Remote Signal Strength .................. 169
Low Speed Braking Control .................... 467
Lower Anchors ........................................... 69
Lubricant Specifications Chart ........ 634, 636Luggage (Maximum Load Limit)
............. 407
Lumbar Support Adjustment Switch ....... 213
M
Maintenance..................................... 149, 539
Battery .................................................... 586
Brake Fluid .............................................. 564
Cleaning .................................................. 590
Climate Control System ........................... 589
Coolant ................................................... 561
Maintenance Minder
TM............................ 543
Oil ........................................................... 554
Precautions .............................................. 540
Radiator .................................................. 562
Remote Transmitter ................................. 588
Replacing Light Bulbs ............................... 566
Safety ...................................................... 541
Service Items ........................................... 547
Tires ........................................................ 577
Transmission Fluid ................................... 563
Under the Hood ...................................... 550
Malfunction Indicator Lamp .............. 87, 616
Map Lights ................................................ 224
Maximum Load Limit ............................... 407
Meters, Gauges ......................................... 139
Mirrors ....................................................... 210
Adjusting ................................................. 210
Door ........................................................ 211
Exterior .................................................... 211
Interior Rearview ..................................... 210 Modifications (and Accessories)
.............. 595
Moonroof ................................................. 190
MP3 ........................................................... 296
MP3/WMA/AAC ........................................ 296
Multi-View Rear Camera .......................... 531
N
Navigation........................................ 148, 163
Numbers (Identification) .......................... 638
O
Odometer................................................. 142
Oil (Engine) ............................................... 553
Adding .................................................... 556
Checking................................................. 554
Displaying Oil Life .................................... 544
Low Oil Pressure Warning........................ 615
Recommended Engine Oil ....................... 553
Viscosity .................................................. 553
Open Source Licenses ............................... 346
Opening
Trunk ...................................................... 630
Opening/Closing Hood....................................................... 552
Moonroof ............................................... 190
Power Windows ...................................... 187
Trunk ...................................................... 181
Outside Temperature ............................... 143
Overheating .............................................. 613

654
Index
P
Paddle Shifters.................................. 427, 433
Panic Mode ............................................... 186
Parking ...................................................... 520
Parking Brake ............................................ 510
Parking Brake and Brake System Indicator (Amber) ............................................. 84, 618
Parking Brake and Brake System Indicator
(Red) .......................................... 83, 617, 618
Parking Sensor System .............................. 522
Passenger Front Airbag Off Indicator ....... 61
Passing Indicators ..................................... 195
Phone ........................................................ 150
Playing Bluetooth ® Audio ........................ 299
Power Windows ........................................ 187
Precautions While Driving ........................ 420
Rain ......................................................... 420
Pregnant Women ....................................... 44
Puncture (Tire) .......................................... 599
R
Radiator..................................................... 562
Radio (AM/FM) .......................................... 278
Radio (SiriusXM ®)...................................... 282
Radio Data System (RDS) .......................... 280
Range ........................................................ 145
RDS (Radio Data System) .......................... 280
Readiness Codes (Emissions Testing) ....... 641
Rear Defogger/Heated Door Mirror
Button ....................................................... 204 Rear Seat (Folding Down)
........................ 216
Rear Seat Heaters ..................................... 239
Rear Seat Reminder .................................. 217
Rearview Mirror ....................................... 210
Refueling .................................................. 533
Fuel Gauge.............................................. 139
Gasoline .................................. 533, 634, 636
Low Fuel Indicator ..................................... 93
Regulations ............................... 450, 580, 639
Remote Engine Start ................................ 416
Remote Transmitter ................................. 174
Replacement Battery .................................................... 588
Bulbs ....................................................... 566
Fuses ............................... 622, 624, 626, 627
Tires ........................................................ 583
Wiper Blade Rubber ................................ 574
Reporting Safety Defects ......................... 640
Resetting a Trip Meter ..................... 143, 145
Road Departure Mitigation (RDM) ......... 496
On and Off.............................................. 498S
Safe Driving ................................................ 33
Safety Check ............................................... 37
Safety Labels ............................................... 79
Safety Message ............................................. 2
Safety Support .......................................... 158 Seat Belts
.................................................... 38
Adjusting the Shoulder Anchor ................. 43
Automatic Seat Belt Tensioners ................. 41
Checking .................................................. 45
Fastening .................................................. 42
Installing a Child Seat wi th a Lap/Shoulder Seat
Belt ......................................................... 72
Pregnant Women...................................... 44
Reminder .................................................. 39
Warning Indicator ............................... 39, 92
Seat Heaters ............................. 237, 238, 239
Seat Ventilation ....................................... 238
Seats .......................................................... 212
Adjusting ................................................ 212
Front Seats.............................................. 212
Rear Seats ............................................... 216
Seat Heaters ........................... 237, 238, 239
Seat Ventilation ...................................... 238
Security System ........................................ 184
Immobilizer System Indicator ..................... 98
Security System Alarm Indicator ................ 99
Selecting a Child Seat ................................ 68
Sequential Mode ...................................... 427
Operation ............................................... 428
Shift Buttons ...................................... 21, 422
Operation ............................................... 423
Shift Lever .................................. 24, 429, 431
Operation ................................. 24, 430, 432
Releasing ................................................ 611
Won’t Move ........................................... 611
Shift Position Indicator .............................. 88

655
Index
Shifting (Transmission)............ 422, 429, 431
Shoulder Anchor ........................................ 43
Side Airbags ............................................... 57
Side Curtain Airbags .................................. 59
Siri Eyes Free ............................................. 313
SiriusXM ® Radio ....................................... 282
Smart Entry with Push Button Start System ..................................................... 170
Snow Tires ................................................ 585
Spare Tire ................................. 599, 635, 637
Spark Plugs ....................................... 634, 636
Specifications ........................................... 634
Specified Fuel ........................... 533, 634, 636
Speedometer ............................................ 139
SPORT Mode ............................................. 435
Indicator ................................................. 101
SRS Airbags (Airbags) ................................ 49
Starting Assist Brake Function ................ 441
Starting the Engine .................................. 414
Does Not Start ........................................ 605
Jump Starting ......................................... 608
Steering Wheel
Adjusting ................................................ 209
Stopping ................................................... 520
Summer Tires ............................................ 585
Sunglasses Holder .................................... 230
Supplemental Restraint System (SRS) ....... 49
Switches
(Around the Steering Wheel) ........ 6, 7, 191
System Message Indicator ......................... 99
System Updates ........................................ 266T
Tachometer....................................... 151, 162
Temperature Gauge ..................................................... 139
Outside Temperature ............................... 143
Temperature Sensor ......................... 143, 243
Time (Adjusting) ....................................... 166
Tire Pressure Monitoring System
(TPMS) ..................................................... 446
Indicator ............................................ 96, 620
Tires ........................................................... 577
Air Pressure ............................. 578, 635, 637
Checking and Maintaining ....................... 577
Inspection ................................................ 577
Labeling .................................................. 578
Puncture (Flat Tire) ................................... 599
Regulations ............................................. 580
Rotation .................................................. 584
Spare Tire ................................ 599, 635, 637
Summer .................................................. 585
Tire Chains .............................................. 585
Wear Indicators ....................................... 582
Winter ..................................................... 585
Tools .......................................................... 598
Towing a Trailer ....................................... 409
Equipment and Accessories ..................... 411
Load Limits .............................................. 409
Towing Your Vehicle ................................ 413
Emergency .............................................. 628 TPMS
(Tire Pressure Monitoring System)
.......... 446
Indicator............................................ 96, 620
Traffic Sign Recognition System .............. 500
Transmission ..................... 421, 422, 429, 431
Automatic ............................................... 422
Continuously Variable ..................... 429, 431
Fluid ........................................................ 563
Number................................................... 638
Shift Position Indicator............................... 88
Transmission System
Indicator.............................................. 89, 91
TRIP Button ............................................... 142
Trip Computer .................................. 144, 146
Trip Meter ................................. 143, 145, 147
Troubleshooting ....................................... 597
Blown Fuse.............................. 622, 624, 626
Brake Pedal Vibrates .................................. 30
Buzzer Sounds When Opening Door.......... 31
Emergency Towing .................................. 628
Engine Won’t Start .................................. 605
Noise When Braking .................................. 32
Overheating ............................................ 613
Puncture/Flat Tire .................................... 599
Rear Door Won’t Open...................... 31, 179
Shift Lever Won’t Move ........................... 611
Warning Indicators .................................... 82
Trunk ......................................................... 181
Lid........................................................... 181
Light Bulb........................................ 634, 636
Main Switch ............................................ 183

656
Index
Unable to Open ....................................... 630
Turbo Engine Vehicle ............................... 537
Turn Signals ............................................... 194
Indicators (Instrum ent Panel) ...................... 97
Turn-by-Turn Directions ................... 148, 163
U
Unlocking the Doors................................. 170
Unlocking the Front Doors
from the Inside ........................................ 178
USB Flash Drives ................................ 296, 331
USB Ports ................................................... 247
Using the Smart Entry wi th Push Button Start
System ...................................................... 170
V
Vanity Mirrors ............................................... 9
Vehicle Identification Number ................. 638
Vehicle Speed ............................................ 162
Vehicle Stability Assist
TM (VSA ®)............... 443
Off Button ............................................... 444
Off Indicator .............................................. 95
System Indicator ........................................ 94
Ventilation ........................................ 238, 240
Viscosity (Oil) ............................. 553, 635, 637
Voice Control Operation .......................... 275
Voice Portal Screen .................................. 276
Voice Recognition .................................... 275
VSA ® (Vehicle Stability Assist
TM)............... 443
W
Wallpaper ................................................. 257
Warning and Information Messages ....... 109
Warning Indicator On/Blinking ............... 615
Warning Labels ........................................... 79
Warnings ................................................... 149
Warranties (Warranty Manual provided separately) .............................................. 643
Watts ................................................. 634, 636
Wear Indicators (Tire) .............................. 582
Wheel Nut Wrench (Jack Handle) ... 598, 602
Wi-Fi Connection ...................................... 310
Window Washers ..................................... 202
Adding/Refilling Fluid .............................. 565
Switch ..................................................... 202
Windows (Opening and Closing) ............ 187
Windshield
Cleaning ......................................... 590, 593
Defrosting/Defogging .............................. 241
Washer Fluid ........................................... 565
Wiper Blades ........................................... 574
Wipers and Washers................................ 202
Winter Tires Snow Tires .............................................. 585
Tire Chains .............................................. 585
Wipers and Washers ................................. 202
Automatic Intermi ttent Wipers ................ 203
Checking and Replacing Wiper Blades ..... 574
Wireless Charger ...................................... 232
WMA ......................................................... 296
Worn Tires ................................................ 577