DTC P0111: IAT Sensor Circuit Range/Performance Problem; DTC P1116: ECT Sensor Circuit Range/Performance Problem Honda CR-V II рестайлинг

1. Check for poor connections or loose terminals at the ECT sensor and the IAT sensor. Are the connections and terminals OK? YES - Go to step 2. NO - Repair the connections or terminals, then go to step 25 .
2. Start the engine, and let it idle 10 minutes.
3. Check the ECT SENSOR in the DATA LIST with the HDS. Is about 129 °F (54 °C) or less, or 1.54 V or more indicated? YES - Replace the ECT sensor (see «ECT SENSOR REPLACEMENT»(ref-219371-S15629695632006021400000) ), then go to step 25 . NO - Go to step 4.
4. Turn the ignition switch OFF.
5. Remove the IAT sensor (see «IAT SENSOR REPLACEMENT»(ref-219371-S31822023082006021400000) ).
6. Allow the IAT sensor to cool to 77 °F (25 °C).
7. Note the ambient temperature.
8. Connect the IAT sensor to the 2P connector, but do not install the sensor to the intake air duct.
9. Turn the ignition switch ON (II).
10. Note the value of the IAT SENSOR quickly in the DATA LIST with the HDS.
11. Compare the IAT SENSOR and the ambient temperature. Does the IAT SENSOR differ 5.4 °F (3 °C) or more? YES - Replace the IAT sensor (see «IAT SENSOR REPLACEMENT»(ref-219371-S31822023082006021400000) ), then go to step 25 . NO - Go to step 12.
12. Disconnect the IAT sensor from the 2P connector.
13. Blow hot air onto the IAT sensor with a heat gun.
14. Connect the IAT sensor to the 2P connector. Do not install the sensor on the intake air duct.
15. Check the IAT SENSOR in the DATA LIST with the HDS. Does the IAT SENSOR change 82 °F (28 °C) or more? YES - Go to step 16. NO - Replace the IAT sensor (see «IAT SENSOR REPLACEMENT»(ref-219371-S31822023082006021400000) ), then go to step 25 .
16. Turn the ignition switch OFF.
17. Drain the coolant (see «COOLANT CHECK»(ref-219368-S38780573812006021400000) ).
18. Remove the ECT sensor (see «ECT SENSOR REPLACEMENT»(ref-219371-S15629695632006021400000) ).
19. Allow the ECT sensor to cool to 77 °F (25 °C).
20. Note the ambient temperature.
21. Connect the ECT sensor to the 2P connector. Do not install the sensor on the engine.
22. Turn the ignition switch ON (II).
23. Note the value of ECT SENSOR quickly in the DATA LIST with the HDS.
24. Compare the ECT SENSOR and the ambient temperature. Does the ECT SENSOR differ 5.4 °F (3 °C) or more? YES - Replace the ECT sensor (see «ECT SENSOR REPLACEMENT»(ref-219371-S15629695632006021400000) ), then go to step 25. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the ECT sensor and the ECM/PCM.
25. Turn the ignition switch ON (II).
26. Reset the ECM/PCM with the HDS.
27. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-219374-S42320443812006021400000) ).
28. Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0111 and/or P1116 is indicated, check for poor connections or loose terminals at the ECT sensor, or the IAT sensor and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - Troubleshooting is complete.

Scheme 24

1. Turn the ignition switch ON (II).
2. Check the IAT SENSOR in the DATA LIST with the HDS. Is about 356 °F (180 °C) or higher, or 0.08 V or less indicated? YES - Go to step 3. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the IAT sensor and the ECM/PCM.
3. Turn the ignition switch OFF.
4. Disconnect the IAT sensor 2P connector.
5. Turn the ignition switch ON (II).
6. Check the IAT SENSOR in the DATA LIST with the HDS. Is about 356 °F (180 °C) or higher, or 0.08 V or less indicated? YES - Go to step 7. NO - Go to step 11 .
7. Turn the ignition switch OFF.
8. Jump the SCS line with the HDS.
9. Disconnect ECM/PCM connector B (24P).
10. Check for continuity between IAT sensor 2P connector terminal No. 2 and body ground. Is there continuity? YES - Repair short in the wire between the IAT sensor and the ECM/PCM (B17), then go to step 13 . NO - Go to step 18 .
11. Turn the ignition switch OFF.
12. Replace the IAT sensor (see «IAT SENSOR REPLACEMENT»(ref-219371-S31822023082006021400000) ).
13. Reconnect all connectors.
14. Turn the ignition switch ON (II).
15. Reset the ECM/PCM with the HDS.
16. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-219374-S42320443812006021400000) ).
17. Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0112 is indicated, check for poor connections or loose terminals at the IAT sensor and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - Troubleshooting is complete.
18. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see «ECM/PCM UPDATING AND SUBSTITUTION FOR TESTING»(ref-219370-S15199960282006021400000) ).
19. Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0112 is indicated, check for poor connections or loose terminals at the IAT sensor and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(ref-219371-S37179676622006021400000) ).

Scheme 25

Scheme 26

Scheme 27

Scheme 28

Scheme 29

1. Turn the ignition switch ON (II).
2. Check the IAT SENSOR in the DATA LIST with the HDS. Is about -40 °F ( -40 °C) or less, or 4.90 V or more indicated? YES - Go to step 3. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the IAT sensor and the ECM/PCM.
3. Turn the ignition switch OFF.
4. Disconnect the IAT sensor 2P connector.
5. Connect IAT sensor 2P connector terminals No. 1 and No. 2 with a jumper wire.
6. Turn the ignition switch ON (II).
7. Check the IAT SENSOR in the DATA LIST with the HDS. Is about -40 °F ( -40 °C) or less, or 4.90 V or more indicated? YES - Go to step 8. NO - Go to step 18 .
8. Turn the ignition switch OFF.
9. Remove the jumper wire.
10. Turn the ignition switch ON (II).
11. Measure voltage between IAT sensor 2P connector terminal No. 2 and body ground. Is there about 5 V? YES - Go to step 12. NO - Go to step 17 .
12. Turn the ignition switch OFF.
13. Jump the SCS line with the HDS.
14. Disconnect ECM/PCM connector A (31P).
15. Connect IAT sensor 2P connector terminal No. 1 to body ground with a jumper wire.
16. Check for continuity between ECM/PCM connector terminal A23 and body ground. Is there continuity? YES - Go to step 25 . NO - Repair open in the wire between the ECM/PCM (A23) and the IAT sensor, then go to step 20 .
17. Measure voltage between ECM/PCM connector terminal B17 and body ground. Is there about 5 V? YES - Repair open in the wire between the ECM/PCM (B17) and the IAT sensor, then go to step 20 . NO - Go to step 25 .
18. Turn the ignition switch OFF.
19. Replace the IAT sensor (see «IAT SENSOR REPLACEMENT»(ref-219371-S31822023082006021400000) ).
20. Reconnect all connectors.
21. Turn the ignition switch ON (II).
22. Reset the ECM/PCM with the HDS.
23. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-219374-S42320443812006021400000) ).
24. Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0113 is indicated, check for poor connections or loose terminals at the IAT sensor and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - Troubleshooting is complete.
25. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see «ECM/PCM UPDATING AND SUBSTITUTION FOR TESTING»(ref-219370-S15199960282006021400000) ).
26. Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0113 is indicated, check for poor connections or loose terminals at the IAT sensor and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(ref-219371-S37179676622006021400000) ).