DTC P0102: MAF Sensor Circuit Low Voltage Honda Element YH2 рестайлинг 2

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

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1. Turn the ignition switch to ON (II), and wait 2 seconds.
2. Check the MAF SENSOR in the DATA LIST with the HDS. Is about 0 gm/s or 0.1 V or less indicated? YES -Go to step 3. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the MAF sensor/IAT sensor and the ECM/PCM.
3. Check the No. 4 ACG (10 A) fuse in the under-dash fuse/relay box. Is the fuse OK? YES -Go to step 4. NO -Repair short in the wire between the MAF sensor and the No. 4 ACG (10 A) fuse. Also replace the No. 4 ACG (10 A) fuse, then go to step 20 .
4. Turn the ignition switch to LOCK (0).
5. Disconnect the MAF sensor/IAT sensor 5P connector.
6. Turn the ignition switch to ON (II).
7. Measure the voltage between MAF sensor/IAT sensor 5P connector terminal No. 3 and body ground. Is there battery voltage? YES -Go to step 8. NO -Repair open in the wire between the No. 4 ACG (10 A) fuse and the MAF sensor/IAT sensor, then go to step 20 .
8. Turn the ignition switch to LOCK (0).
9. Measure the resistance between MAF sensor/IAT sensor 5P connector terminal No. 1 and body ground. Is there 190-210 kohms? YES -Go to step 15 . NO -Go to step 10.
10. Jump the SCS line with the HDS.
11. Disconnect ECM/PCM connector C (22P).
12. Check for continuity between ECM/PCM connector terminal C22 and body ground. Is there continuity? YES -Repair short in the wire between the ECM/PCM (C 22) and the MAF sensor/IAT sensor, then go to step 20 . NO -Go to step 13.
13. Connect MAF sensor/IAT sensor 5P connector terminal No. 1 to body ground with a jumper wire.
14. Check for continuity between ECM/PCM connector terminal C22 and body ground. Is there continuity? YES -Go to step 26 . NO -Repair open in the wire between the ECM/PCM (C 22) and the MAF sensor/IAT sensor, then go to step 20 .
15. Reconnect the MAF sensor/IAT sensor 5P connector.
16. Start the engine. Hold the engine speed at 2,000 rpm without load (A/T in P or N, M/T in neutral).
17. Measure the voltage between ECM/PCM connector terminal C22 and body ground. Is there about 1.5 V? YES -Go to step 25 . NO -Go to step 18.
18. Turn the ignition switch to LOCK (0).
19. Replace the MAF sensor/IAT sensor (see «MAF SENSOR/IAT SENSOR REPLACEMENT»(ref-355245-S33598592802010012100000) ).
20. Reconnect all connectors.
21. Turn the ignition switch to 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-290807-S02808252682008072200000) ).
24. Check for Temporary DTCs or DTCs with the HDS. Is DTC P0102 indicated? YES -Check for poor connections or loose terminals at the MAF sensor/IAT sensor and the ECM/PCM, then go to step 1 . NO -Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.
25. Turn the ignition switch to LOCK (0).
26. Reconnect all connectors.
27. Update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-355245-S27182940282010012100000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-290833-S34742010492008072200000) ).
28. Check for Temporary DTCs or DTCs with the HDS. Is DTC P0102 indicated? YES -Check for poor connections or loose terminals at the MAF sensor/IAT sensor and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-290833-S34742010492008072200000) ), then recheck. If the ECM/PCM was substituted, go to step 1 . 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-355245-S09328189752010012100000) ). If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.