2023 HONDA CIVIC check engine

820
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 verify whether your vehicle's emissions
components are working properly.
The codes may not be read properly if testin g 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 retesting 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 (continuously variable transmission) or (N (manual
transmission). 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 only 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.
1.5 L engine models
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831
Index
Continuously Variable TransmissionCreeping................................................. 502
Fluid ....................................................... 725
Kickdown ............................................... 502
Operating the Shift Lever .......... 29, 504, 506
Shift Lever Does Not Move ...................... 790
Shifting ........................................... 503, 505
Controls .................................................... 173
Coolant (Engine) .............................. 721, 723
Adding the Coolant ........................ 721, 724
Overheating ............................................ 791
Creeping (Continuously Variable Transmission) .......................................... 502
Cross Traffic Monitor ............................... 677
Cup Holders .............................................. 235
Customer Service Information ................ 827
Customize Display .................... 136, 151, 170
Customized Features ....................... 382, 390
D
Daytime Running Lights .......................... 209
Dead Battery ............................................ 786
Defaulting All the Settings .............. 389, 413
Defrosting the Windshield and Windows ................................................. 251
Devices that Emit Radio Waves ............... 818
Dimming Headlights .............................................. 206
Rearview Mirror ...................................... 220
Dipstick (Engine Oil) ................................ 713 Directional Signals (Turn Signal)
............. 205
Display Setup .................................... 266, 308
Door Mirrors ............................................. 221
Doors ......................................................... 176
Auto Door Locking .................................. 191
Auto Door Unlocking ............................... 191
Door Open Message .................................. 47
Keys ........................................................ 176
Locking/Unlocking the Doors from the Inside..................................................... 188
Locking/Unlocking the Doors from the
Outside.................................................. 179
DOT Tire Quality Grading ........................ 739
Drive Mode Switch ........................... 525, 529
Driver Attention Monitor ................ 131, 161
Driver Information Interface ... 125, 148, 154
Switching the Display ...................... 125, 155
Driver's Knee Airbag .................................. 65
Driving ....................................................... 485
Braking .................................................... 657
Continuously Variable Transmission ......... 502
Shifting Gear ........................................... 509
Shifting Position .............................. 503, 505
Starting the Engine .................................. 493
Dust and Pollen Filter ............................... 750
E
Eco Assist® System ...................................... 15
ECON Button ............................................. 513
Elapsed Time ..................................... 130, 160 Electric Power Steering (EPS) System
Indicator.......................................... 104, 798
Electronic Stability Control (ESC) ............. 535
Emergency ................................................ 808
Emergency Engine Stop ........................... 785
Emergency Hatch Opener ........................ 810
Emissions Testing (Readiness Codes) ....... 820
Engine
Coolant ........................................... 721, 723
If the Battery Is Dead ............................... 786
Oil ........................................................... 711
Starting ................................................... 493
Engine Coolant ................................. 721, 723
Adding the Coolant......................... 721, 724
Overheating ............................................ 791
Temperature Gauge ................................ 119
Engine Oil ................................................. 711
Adding .................................................... 716
Checking................................................. 713
Displaying Oil Life .................................... 696
Engine oil pressure low Warning ............. 795
Recommended Engine Oil ....................... 711
Engine oil pressure low Warning ............ 795
ENGINE START/STOP Button .................... 202
Exhaust Gas Hazard (Carbon Monoxide) .. 92
Exterior Care (Cleaning) ........................... 753
Exterior Mirrors ........................................ 221
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834
Index
Kickdown (Continuously Variable Transmission) ........................................... 502
L
Lane Keeping Assist System (LKAS) ......... 618
LATCH (Child Seats) .................................... 82
Lights ................................................. 206, 728
Auto High-Beam ...................................... 210
Automatic ............................................... 207
Bulb Replacement .................................... 728
Daytime Running Lights ........................... 209
Fog Lights ................................................ 209
High Beam Indicator ................................ 106
Interior .................................................... 231
Light Switches ......................................... 206
Lights On Indicator .................................. 106
Turn Signals ............................................. 205
Limited Slip Differential (LSD) ................. 539
Load Limits ................................................ 489
Locking/Unlocking .................................... 176
Auto Door Locking/Unlocking .................. 191
Childproof Door Locks ............................. 190
From Inside .............................................. 188
From Outside ........................................... 179
Keys ........................................................ 176
Using a Key ............................................. 185
Low Battery Charge .................................. 796
Low Fuel Indicator .................................... 103
Low Remote Key Signal Strength ............ 178
Low Speed Braking Control ............. 567, 573Lower Anchors
............................................ 82
Luggage (Maximum Load Limit) ............. 489
M
Maintenance............................................. 691
Adding the Coolant......................... 721, 724
Battery .................................................... 747
Brake Fluid .............................................. 726
Cleaning ......................................... 751, 753
Climate Control System ........................... 750
Coolant ........................................... 721, 723
Maintenance Minder
TM............................ 695
Oil ........................................................... 713
Precautions ............................................. 692
Remote Transmitter ................................. 749
Replacing Light Bulbs .............................. 728
Safety...................................................... 693
Service Items ........................................... 700
Tires ........................................................ 736
Transmission Fluid ................................... 725
Under the Hood ...................................... 707
Malfunction Indicator Lamp ............ 101, 796
Manual Transmission ............................... 509
Map Lights ................................................ 232
Maximum Load Limit ............................... 489
Meters, Gauges ......................................... 118
Mirrors ...................................................... 220
Adjusting ................................................ 220
Door ....................................................... 221
Exterior ................................................... 221 Interior Rearview ..................................... 220
Modifications (and Accessories) .............. 756
Moonroof ................................................. 201
MP3 ................................................... 272, 331
Multi-View Rear Camera ......................... 681
N
Navigation................................................ 160
Numbers (Identification) ......................... 816
O
Odometer................................................. 120
Oil (Engine) .............................................. 711
Adding ................................................... 716
Checking ................................................ 713
Displaying Oil Life ................................... 696
Engine oil pressure low Warning ............. 795
Recommended Engine Oil ....................... 711
Viscosity.................................................. 711
Open Source Licenses .............................. 377
Opening
Hatch...................................................... 810
Hood ...................................................... 710
Opening/Closing
Hatch...................................................... 192
Moonroof ............................................... 201
Power Windows...................................... 198
Outside Temperature Display ................. 120
Overheating ............................................. 791
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836
Index
Spark Plugs................................................ 814
Specifications ............................................ 814
Specified Fuel .................................... 683, 814
Speed/Distance Units ........................ 137, 169
Speedometer ............................................. 118
SRS Airbags (Airbags) ................................. 60
Starting Assist Brake Function ................. 519
Starting the Engine .................................. 493
Does Not Start ......................................... 781
If the Battery Is Dead ............................... 786
Steering Wheel
Adjusting ................................................. 219
Stopping .................................................... 669
Stopwatch ................................................. 149
Summer Tires ............................................ 745
Sunglasses Holder ..................................... 237
Supplemental Restraint System (SRS) ........ 60
Switches (Around the Steering Wheel) ......... 8, 9, 202
System Message Indicator ........................ 107
System Updates ......................................... 302
T
Tachometer............................................... 119
Temperature Gauge ..................................................... 119
Outside Temperature Display ................... 120
Temperature Sensor ......................... 120, 254
Temporary Repair Kit (TRK) ..................... 768
Tie-down Anchors ..................................... 238 Time (Setting)
........................................... 174
Tire Pressure Monitoring System
(TPMS) ..................................................... 540
Indicator.......................................... 105, 800
Tires ........................................................... 736
Air Pressure ..................................... 737, 815
Checking and Maintaining ...................... 736
Inspection ............................................... 736
Labeling .................................................. 737
Puncture (Flat Tire) .................................. 761
Regulations ............................................. 739
Rotation .................................................. 743
Spare Tire ........................................ 761, 815
Summer .................................................. 745
Temporary Repair Kit (TRK) ...................... 768
Tire Chains .............................................. 744
Wear Indicators ....................................... 741
Winter..................................................... 744
Tools .......................................................... 760
Towing Your Vehicle ................................ 492
Emergency .............................................. 808
TPMS
(Tire Pressure Monitoring System) ........ 540
Indicator.......................................... 105, 800
Traffic Jam Assist ...................................... 630
Traffic Sign Recognition System .............. 647
Transmission ............................. 503, 505, 509
Continuously Variable
Transmission.................................. 503, 505
Fluid ........................................................ 725
Manual ................................................... 509 Shift Position Indicator ............ 101, 504, 506
Trip Computer .......................................... 293
Trip Meter ........................................ 128, 158
TRK (Temporary Repair Kit) .................... 768
Troubleshooting ...................................... 759
Blown Fuse ..................................... 801, 804
Brake Pedal Vibrates ................................. 38
Buzzer Sounds When Opening Door ......... 39
Emergency Towing ................................. 808
Engine Won't Start ................................. 781
Noise When Braking ................................. 41
Overheating ............................................ 791
Puncture/Flat Tire .................................... 761
Rear Door Won't Open ..................... 39, 190
Shift Lever Won't Move .......................... 790
Warning Indicators.................................... 96
Turbo Engine Vehicle .............................. 690
Turn Signals .............................................. 205
Indicators (Instru ment Panel) ................... 106
U
Unlocking the Doors ................................ 179
Unlocking the Fron t Doors from the
Inside ....................................................... 188
USB Flash Drives ............... 256, 272, 331, 362
USB Port(s) ................................................ 257
Using the Keyless Access System ............. 179
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