Sensor/IAT Sensor 5P Connector No. 1 (RED)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The TA wire is OK. Update the PCM See PCM REMOVAL AND INSTALLATION or PCM
UPDATE if it does not have the latest software, or substitute a known-good PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE , then do the repair verification .
NO : Repair an open in the TA wire between the PCM (B42) and the MAF sensor/IAT sensor, then do
the repair verification .
REPAIR VERIFICATION
ο‘
ο‘
ο‘
ο‘
1. Turn the ignition switch to LOCK (0).
2. Reconnect all connectors.
3. Turn the ignition switch to ON (II).
4. Reset the PCM with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or HOW
TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
ο‘
ο‘
5. DO THE PCM IDLE LEARN PROCEDURE .
6. Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC Pending DTC Freeze Frame
P0113 IAT SENSOR CIRCUIT HIGH VOLTAGE
Is DTC P0113 indicated?
YES : Check for poor connections or loose terminals at the MAF sensor/IAT sensor and the PCM. If the PCM
was updated, substitute a known-good PCM See PCM UPDATE or PCM REMOVAL AND
INSTALLATION , then recheck. If the PCM was substituted, go to step 1.
NO : Troubleshooting is complete. If the PCM was substituted, replace the original PCM See PCM UPDATE
or PCM REMOVAL AND INSTALLATION . If any other Pending or Confirmed DTCs are indicated, go to
the indicated DTC's troubleshooting.
DTC P0116: ECT SENSOR 1 CIRCUIT RANGE/PERFORMANCE PROBLEM
Fig. 34: DTC Troubleshooting Flow Chart (P0116)
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 .
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0116 ECT SENSOR 1 CIRCUIT
RANGE/PERFORMANCE PROBLEM
1. ECT sensor 1 check:
ο‘
1. Turn the ignition switch to ON (II).
ο‘
2. Check the parameter(s) below with the HDS.
Threshold
Values
Current conditions
Unit Values Unit
Signal
More than 176 Β°F
More than 80 Β°C
ECT SENSOR 1
Do the current condition(s) match the threshold?
YES : Note the value of ECT SENSOR 1, then go to step 3.
NO : Note the value of ECT SENSOR 1, then go to step 2.
2. Problem verification (low temperature):
ο‘
1. Note the value of ECT SENSOR 1 in the DATA LIST with the HDS.
Current conditions
Signal
Values
Unit
ECT SENSOR 1
ο‘
ο‘
2. 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.
3. Check ECT SENSOR 1 in the DATA LIST with the HDS.
Current conditions
Signal
Values
Unit
ECT SENSOR 1
Does ECT SENSOR 1 change 18 Β°F (10 Β°C) or more?
YES : Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at
ECT sensor 1 and the PCM.
NO : The failure is duplicated. REPLACE ECT SENSOR 1 , then do the repair verification .
3. Problem verification (high temperature):
ο‘
ο‘
ο‘
ο‘
1. Turn the ignition switch to LOCK (0).
2. Open the hood, and let the engine cool for 3 hours.
3. Turn the ignition switch to ON (II).
4. Check ECT SENSOR 1 in the DATA LIST with the HDS.
Current conditions
Signal
Values
Unit
ECT SENSOR 1
Does ECT SENSOR 1 change 18 Β°F (10 Β°C) or more?
YES : Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at
ECT sensor 1 and the PCM.
NO : The failure is duplicated. REPLACE ECT SENSOR 1 , then do the repair verification .
REPAIR VERIFICATION
ο‘
ο‘
1. Turn the ignition switch to ON (II).
2. Reset the PCM with the HDS See HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS
SYSTEMS or HOW TO TROUBLESHOOT THE A/T SYSTEM .
ο‘
ο‘
3. DO THE PCM IDLE LEARN PROCEDURE .
4. Check for Pending or Confirmed DTCs with the HDS.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0116 ECT SENSOR 1 CIRCUIT
RANGE/PERFORMANCE PROBLEM
Is DTC P0116 indicated?
YES : Check for poor connections or loose terminals at ECT sensor 1 and the PCM, then go to step 1.
NO : Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated
DTC's troubleshooting.
DTC P0117: ECT SENSOR 1 CIRCUIT LOW VOLTAGE
2024 Honda CR-V Owner's Manual
2023 Honda CR-V Owner's Manual
2021 Honda CR-V Owner's Manual
2018 Honda CR-V Owner's Manual
2015 Honda CR-V Owner's Manual
