DTC Description
OBD STATUS
P0128 COOLING SYSTEM MALFUNCTION
Does the HDS indicate PASSED, FAILED, or NOT COMPLETED?
PASSED : Troubleshooting is complete. If the PCM was substituted, replace the original PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE . If any other Pending or Confirmed DTCs are
indicated, go to the indicated DTC's troubleshooting.
FAILED : Go to step 1 and recheck. If the PCM was updated, replace the original PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE , then check the OBD STATUS again.
NOT COMPLETED : Meet the test condition, and check the OBD STATUS again.
DTC P0133: A/F SENSOR (SENSOR 1) MALFUNCTION/SLOW RESPONSE
Fig. 52: DTC Troubleshooting Flow Chart (P0133)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
Before you troubleshoot, record all freeze data and any on-board
snapshot, and review the general troubleshooting information See HOW
TO TROUBLESHOOT THE A/T SYSTEM or HOW TO TROUBLESHOOT THE
FUEL AND EMISSIONS SYSTEMS .
If DTC P0139 is stored at the same time as DTC P0133, troubleshoot DTC
P0139 first, then recheck for DTC P0133.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0133 A/F SENSOR (SENSOR 1) MALFUNCTION/SLOW
RESPONSE
1. Problem verification:
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or
HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
3. Start the engine. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator
fan comes on, then let it idle.
4. Test-drive under these conditions:
Engine coolant temperature (ECT SENSOR 1) above 158 °F (70 °C)
Transmission in D
Engine speed between 1, 500-3, 000 rpm
Drive the vehicle at 25 mph (40 km/h) or less for 5 minutes, then drive at a steady speed of
32 mph (52 km/h) or more
Current conditions
Signal
Values
Unit
ECT SENSOR 1
ENGINE SPEED
VEHICLE SPEED
5. Monitor the OBD STATUS for DTC P0133 with the HDS.
DTC Description
OBD STATUS
P0133 A/F SENSOR (SENSOR 1) MALFUNCTION/SLOW RESPONSE
Does the HDS indicate FAILED?
YES : REPLACE THE A/F SENSOR (SENSOR 1) , then do the repair verification .
NO : If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor
connections or loose terminals at the A/F sensor (Sensor 1) and the PCM. If the HDS indicates
EXECUTING, keep driving until a result comes on. If the HDS indicates OUT OF CONDITION, go to
step 3 on this step and recheck.
REPAIR VERIFICATION (OBD STATUS CHECK)
1. Turn the ignition switch to ON (II).
2. Reset the PCM with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or HOW
TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
3. DO THE PCM IDLE LEARN PROCEDURE .
4. Start the engine. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan
comes on, then let it idle.
5. Test-drive under these conditions:
Engine coolant temperature (ECT SENSOR 1) above 158 °F (70 °C)
Transmission in D
Engine speed between 1, 500-3, 000 rpm
Drive the vehicle at 25 mph (40 km/h) or less for 5 minutes, then drive at a steady speed of 32 mph
(52 km/h) or more
Current conditions
Signal
Values
Unit
ECT SENSOR 1
ENGINE SPEED
VEHICLE SPEED
6. Monitor the OBD STATUS for DTC P0133 in the DTCs MENU with the HDS.
DTC Description
OBD STATUS
P0133 A/F SENSOR (SENSOR 1) MALFUNCTION/SLOW RESPONSE
Does the HDS indicate PASSED, FAILED, EXECUTING, or OUT OF CONDITION?
PASSED : Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated, go to the
indicated DTC's troubleshooting.
FAILED : Go to step 1 and recheck.
EXECUTING : Keep the test condition until a result comes on.
OUT OF CONDITION : Meet the test condition, and check the OBD STATUS again.
DTC P0134: A/F SENSOR (SENSOR 1) HEATER SYSTEM MALFUNCTION
2024 Honda CR-V Owner's Manual
2023 Honda CR-V Owner's Manual
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2015 Honda CR-V Owner's Manual
