DTC P1164: A/F Sensor (Sensor 1) Circuit Range/Performance Problem (2002-03 Models), DTC P2A00: A/F Sensor (Sensor 1) Circuit Range/Performance Problem (2004-05 Models) Honda Civic VII рестайлинг

Note. Information marked with an asterisk (*) applies to '02-03 models. Information marked with an asterisk (**) applies to '04-05 models.

1. Reset the ECM (see «HOW TO RESET THE ECM»(ref-171994-S27513286122005021700000) )
2. Start the engine. Hold the engine at 3,000 RPM with no load (in neutral) until the radiator fan comes on.
3. Check for a Temporary DTC with the HDS or a scan tool. Is Temporary DTC P1164* (P2A00)** indicated? YES: Replace the A/F sensor (Sensor 1) (see «A/F SENSOR REPLACEMENT»(ref-172003-S39467887942005021700000) ). NO: Go to step 4.
4. Test-drive in 3rd gear. Starting at 1,600 RPM, accelerate using wide open throttle for at least 5 seconds. Then decelerate for at least 5 seconds with the throttle completely closed until the A/F sensor readiness code is set to complete or Temporary DTC P1164* (P2A00)** comes on.
5. Check for a Temporary DTC with the HDS or a scan tool. Is Temporary DTC P1164* (P2A00)** indicated? YES: Replace the A/F sensor (Sensor 1) (see «A/F SENSOR REPLACEMENT»(ref-172003-S39467887942005021700000) ). NO: Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the A/F sensor relay, at the A/F sensor (Sensor 1), and at the ECM.

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1. NOTE: Information marked with an asterisk (*) applies to '02-03 models. Information marked with an asterisk (**) applies to '04-05 models.
2. Start the engine. Is DTC P1166* (P0135)** indicated? YES: Go to step 2. NO: Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the A/F sensor relay, the A/F sensor (Sensor 1), and the ECM.
3. Check the following fuse: NO.14 OPTION (30A) fuse in under-hood fuse/relay box. No.2 + B LAF (A/F) HEATER (20A) fuse in under-dash fuse/relay box. No.4 ACG (10A) in under-dash fuse/relay box. Are any of the fuses blown? YES: Repair short in the wire between the A/F sensor relay and the fuses. NO: Go to step 4.
4. Measure voltage between ECM connector terminals A1 and A24, 30 seconds after the ignition switch is turned ON (II). Is there battery voltage? YES: Update the ECM if it does not have the latest software, or substitute a known-good ECM, then recheck (see «ECM UPDATING AND SUBSTITUTION FOR TESTING»(ref-171994-S19233909092005021700000) ). If the symptom/indication goes away with a known-good ECM, replace the original ECM. NO: Go to step 5.
5. Measure voltage between ECM connector terminals A22 and A24. Is there battery voltage? YES: Go to step 6. NO: Go to step 10 .
6. Turn the ignition switch OFF.
7. Disconnect ECM connector E (31P).
8. Turn the ignition switch ON (II).
9. Connect ECM connector terminal E8 to body ground with a jumper wire, then measure voltage between ECM connector terminals A1 and A24. Is there battery voltage? YES: Update the ECM if it does not have the latest software, or substitute a known-good ECM, then recheck (see «ECM UPDATING AND SUBSTITUTION FOR TESTING»(ref-171994-S19233909092005021700000) ). If the symptom/indication goes away with a known-good ECM, replace the original ECM. NO: Repair open in the wire between the A/F sensor (Sensor 1) and ECM (A1).
10. Turn the ignition switch OFF.
11. Disconnect the ECM connector A (31P) and the A/F sensor (Sensor 1) 4P connector.
12. Check for continuity between the A/F sensor (Sensor 1) 4P connector terminal No. 3 and body ground. Is there continuity? YES: Repair short in the wire between the A/F sensor relay, A/F sensor (Sensor 1) and ECM (A22). NO: Go to step 13.
13. Turn the ignition switch ON (II).
14. Measure voltage between ECM connector terminals E8 and A24. Is there battery voltage? YES: Repair open in the wire between the ECM (A22) and the A/F sensor (Sensor 1). NO: Go to step 15.
15. Check for continuity in the wires between the A/F sensor and the fuses. Is there continuity? YES: The wires are OK. Replace the A/F sensor relay. NO: Repair open in the wire between the A/F sensor relay and the fuses.

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1. Reset the ECM (see «HOW TO RESET THE ECM»(ref-171994-S27513286122005021700000) ).
2. Start the engine. Wait for at least 80 seconds. Is DTC P01167 indicated? YES: Go to step 3. NO: Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the A/F sensor relay, at the A/F sensor (Sensor 1), and at the ECM.
3. Turn the ignition switch OFF.
4. Disconnect the A/F sensor 4P connector and ECM connector A (31P).
5. Connect the A/F sensor (Sensor 1) 4P connector terminals No.2 and No.1 with a jumper wire.
6. Check for continuity between ECM connector terminals A6 and A16. Is there continuity? YES: Replace the A/F sensor (Sensor 1) (see «A/F SENSOR REPLACEMENT»(ref-172003-S39467887942005021700000) ). NO: Repair open in the wire between the A/F sensor (Sensor 1) and the ECM (A6 or A16).

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1. Reset the ECM (see «HOW TO RESET THE ECM»(ref-171994-S27513286122005021700000) ).
2. Start the engine.
3. Turn on the headlights. Is DTC P1297 indicated? YES: Go to step 4. NO: Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the ELD and at the ECM.
4. Turn the ignition switch and the headlights OFF.
5. Disconnect the ELD 3P connector.
6. Turn the ignition switch ON (II).
7. Measure voltage between body ground and ELD 3P connector terminal No.3. Is there about 5 V? YES: Replace the ELD. NO: Go to step 8.
8. Turn the ignition switch OFF.
9. Disconnect ECM connector E (31P).
10. Check for continuity between body ground and ECM connector terminal E15. Is there continuity? YES: Repair short in the wire between the ECM (E15) and the ELD. NO: Update the ECM if it does not have the latest software, or substitute a known-good ECM, then recheck (see «ECM UPDATING AND SUBSTITUTION FOR TESTING»(ref-171994-S19233909092005021700000) ). If the symptom/indication goes away with a known-good ECM, replace the original ECM.

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1. Reset the ECM (see «HOW TO RESET THE ECM»(ref-171994-S27513286122005021700000) ).
2. Start the engine
3. Turn on the headlights. Is DTC P1298 indicated? YES: Go to step 4. NO: Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the ELD and at the ECM.
4. Turn the ignition switch and headlights OFF.
5. Disconnect the ELD 3P connector.
6. Turn the ignition switch ON (II).
7. Measure voltage between body ground and ELD 3P connector terminal No.1. Is there battery voltage? YES: Go to step 8. NO: Check the No.4 ACG (10A) fuse in the under-dash fuse/relay box. If the fuse is OK, repair open in the wire between the No.4 ACG (10A) fuse and the ELD.
8. Turn the ignition switch OFF.
9. Connect ELD 3P connector terminal No.3 to body ground with a jumper wire.
10. Disconnect ECM connector E (31P).
11. Check for continuity between body ground and ECM connector terminal E15. Is there continuity? YES: Go to step 12. NO: Repair open in the wire between the ECM (E15) and the ELD.
12. Check for continuity between ELD 3P connector terminal No.2 and body ground. Is there continuity? YES: Go to step 13. NO: Repair open in the wire between the ELD and G201.
13. Reconnect the ELD 3P connector and ECM connector E (31P)
14. Start the engine and let it idle.
15. While measuring voltage between ECM connector terminals A24 and E15, turn the headlights on (high). Does the voltage drop? YES: Update the ECM if it does not have the latest software, or substitute a known-good ECM, then recheck (see «ECM UPDATING AND SUBSTITUTION FOR TESTING»(ref-171994-S19233909092005021700000) ). If the symptom/indication goes away with a known-good ECM, replace the original ECM. NO: Replace the ELD.