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Pgm-Fi System (Hatchback): Diagnosis Honda Civic VII рестайлинг

Testing & Diagnostics 15 illustrations ~1268 words

DTC Troubleshooting

DTCDescription
DTC P0107MAP Sensor Circuit Low Voltage
DTC P0108MAP Sensor Circuit High Voltage
DTC P1128MAP Sensor Signal Lower Than Expected
DTC P1129MAP Sensor Signal Higher Than Expected
DTC P0112IAT Sensor Circuit Low Voltage
DTC P0113IAT Sensor Circuit High Voltage
DTC P0116ECT Sensor Range/Performance Problem
DTC P0117ECT Sensor Circuit Low Voltage
DTC P0118ECT Sensor Circuit High Voltage
DTC P0122TP Sensor Circuit Low Voltage
DTC P0123TP Sensor Circuit High Voltage
DTC P1121TP Sensor Signal Lower Than Expected
DTC P1122TP Sensor Signal Higher Than Expected
DTC P0125ECT Sensor Malfunction/Slow Response
DTC P0128Cooling System Malfunction
DTC P0133A/F Sensor (Sensor 1) Slow Response
DTC P0134A/F Sensor (Sensor 1) No Activity Detected
DTC P0135A/F Sensor (Sensor 1) Heater Circuit Malfunction
DTC P0137Secondary HO2S (Sensor 2) Circuit Low Voltage
DTC P0138Secondary HO2S (Sensor 2) Circuit High Voltage
DTC P0139Secondary HO2S (Sensor 2) Slow Response
DTC P0141Secondary HO2S (Sensor 2) Heater Circuit Malfunction
DTC P0171Fuel System Too Lean DTC P0172:Fuel System Too Rich
DTC P0172Fuel System Too Rich
DTC P0300Random Misfire and Any Combination of the Following: DTC P0301:No.1 Cylinder Misfire Detected DTC P0302:No.2 Cylinder Misfire Detected DTC P0303:No.3 Cylinder Misfire Detected DTC P0304:No.4 Cylinder Misfire Detected
DTC P0301No. 1 Cylinder Misfire Detected
DTC P0302No. 2 Cylinder Misfire Detected
DTC P0303No. 3 Cylinder Misfire Detected
DTC P0304No. 4 Cylinder Misfire Detected
DTC P0325Malfunction in Knock Sensor Circuit
DTC P0335CKP Sensor No Signal
DTC P0336CKP Sensor Intermittent Interruption
DTC P0339CKP Sensor Intermittent Interruption
DTC P0365CMP Sensor B No Signal
DTC P0369CMP Sensor B Intermittent Interruption
DTC P0500VSS Circuit Malfunction
DTC P0563ECM Power Source Circuit Unexpected Voltage
DTC P0607Malfunction in ECM Internal Circuit
DTC P1106BARO Sensor Range/Performance Problem
DTC P1107BARO Sensor Circuit Low Voltage
DTC P1108BARO Sensor Circuit High Voltage
DTC P1157A/F Sensor (Sensor 1) Circuit High Voltage
DTC P1158A/F Sensor (Sensor 1) AFS Terminal Low Voltage
DTC P1159A/F Sensor (Sensor 1) AFS + Terminal Low Voltage
DTC P1163A/F Sensor (Sensor 1) Slow Response
DTC P1164A/F Sensor (Sensor 1) Circuit Range/Performance Problem
DTC P1166A/F Sensor (Sensor 1) Heater Circuit Malfunction
DTC P1167A/F Sensor (Sensor 1) Heater Circuit Malfunction
DTC P1297ELD Circuit Low Voltage
DTC P1298ELD Circuit High Voltage
DTC P1361CMP Sensor B Intermittent Interruption
DTC P1362CMP Sensor B No Signal
DTC P2227BARO Sensor Range/Performance Problem
DTC P2228BARO Sensor Circuit Low Voltage
DTC P2229BARO Sensor Circuit High Voltage
DTC P2238A/F Sensor (Sensor 1) AFS + Terminal Low Voltage
DTC P2252A/F Sensor (Sensor 1) AFS Terminal Low Voltage
DTC P2A00A/F Sensor (Sensor 1) Circuit Range/Performance Problem

DTC INDEX

Scheme 3

Scheme 3: DTC P0107: MAP Sensor Circuit Low Voltage
Scheme 3: DTC P0107: MAP Sensor Circuit Low Voltage

Scheme 4

Scheme 4
Scheme 4

Scheme 5

Scheme 5
Scheme 5
  1. Turn the ignition switch ON (II).
  2. Check the MAP with the HDS or a scan tool. Is about 101 kPa (760 mmHg, 30 in.Hg) or 2.9 V indicated? YES: Intermittent failure, system is OK at this time. Check for poor connection or loose terminals at the MAP sensor and at the ECM. NO: Go to step 3.
  3. Turn the ignition switch OFF.
  4. Disconnect the MAP sensor 3P connector.
  5. Turn the ignition switch ON (II).
  6. Measure voltage between MAP sensor 3P connector terminals No.1 and No.3. Is there about 5 V ? YES: Go to step 8 . NO: Go to step 7.
  7. Measure voltage between ECM connector terminals A11 and A21. Is there about 5 V ? YES: Repair open in the wire between the ECM (A21) and the MAP sensor. 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.
  8. Check the MAP with the HDS or a scan tool. Is 2 kPa (15 mmHg, 0.6 in.Hg) or less or 0 V indicated? YES: Go to step 9. NO: Replace the MAP sensor (see «THROTTLE BODY DISASSEMBLY/REASSEMBLY»(ref-172063-S23579340702005021800000) ).
  9. Turn the ignition switch OFF.
  10. Disconnect ECM connector A (31P).
  11. Check for continuity between MAP sensor connector terminal No.2 and body ground. Is there continuity? YES: Repair short in the wire between the ECM (A19) and the MAP sensor. 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.

Scheme 6

Scheme 6: DTC P0108: MAP Sensor Circuit High Voltage
Scheme 6: DTC P0108: MAP Sensor Circuit High Voltage

Scheme 7

Scheme 7
Scheme 7

Scheme 8

Scheme 8
Scheme 8
  1. Start the engine. Hold the engine at 3,000 RPM with no load (in neutral) until the radiator fan comes on, then let it idle.
  2. Check the MAP with the HDS or a scan tool. Is about 101 kPa (780 mmHg, 30 in.Hg) or higher, or about 2.9 V or higher indicated? YES: Go to step 3. NO: Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the MAP sensor and at the ECM.
  3. Turn the ignition switch OFF.
  4. Disconnect the MAP sensor 3P connector.
  5. Connect MAP sensor 3P connector terminals No.2 and No.3 with a jumper wire.
  6. Turn the ignition switch ON (II).
  7. Check the MAP with the HDS or a scan tool. Is about 101 kPa (760 mmHg, 30 in.Hg) or higher, or about 2.9 V or higher indicated? YES: Go to step 8. NO: Replace the MAP sensor (see «THROTTLE BODY DISASSEMBLY/REASSEMBLY»(ref-172063-S23579340702005021800000) ).
  8. Remove the jumper wire.
  9. Measure voltage between MAP sensor 3P connector terminals No.1 and No.3. Is there about 5 V? YES: Go to step 10. NO: Repair open in the wire between the ECM (A11) and the MAP sensor.
  10. Turn the ignition switch OFF.
  11. Connect ECM connector terminals A11 and A19 with a jumper wire.
  12. Turn the ignition switch ON (II).
  13. Check the MAP with the HDS or a scan tool. Is about 101 kPa (760 mmHg, 30 in.Hg) or higher, or about 2.9 V or higher 2.9 V or higher indicated? 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 ECM (A19) and the MAP sensor.

DLC Circuit Troubleshooting

If the ECM does not communicate with the HDS or a scan tool, or I/M test equipment, do this troubleshooting procedure.

Scheme 9

Scheme 9: DLC Circuit Troubleshooting
Scheme 9: DLC Circuit Troubleshooting

Scheme 10

Scheme 10
Scheme 10

Scheme 11

Scheme 11
Scheme 11

Scheme 12

Scheme 12
Scheme 12

Scheme 13

Scheme 13
Scheme 13

Scheme 14

Scheme 14
Scheme 14

Scheme 15

Scheme 15
Scheme 15
  1. Measure voltage between DLC terminal No. 16 and body ground. Is there battery voltage? YES: Go to step 2. NO: Repair open in the wire between DLC terminal No. 16 and the No. 9 BACK UP (7.5A) fuse in the under-hood fuse/relay box.
  2. Measure voltage between DLC terminals No. 4 and No. 16. Is there battery voltage? YES: Go to step 3. NO: Repair open in the wire between DLC terminal No. 4 and body ground.
  3. Measure voltage between DLC terminals No. 5 and No. 16. Is there battery voltage? YES: Go to step 4. NO: Repair open in the wire between DLC terminal No. 5 and the ECM (E3) or ECM (A23, A24) and body ground.
  4. Turn the ignition switch ON (II).
  5. Measure voltage between DLC terminals No. 5 and No. 7. Is there 8.5 V or more? YES: Go to step 10 . NO: Go to step 6.
  6. Turn the ignition switch OFF.
  7. Disconnect ECM connector E (31P). Make sure the HDS or a scan tool is disconnected from the DLC.
  8. Check for continuity between DLC terminal No. 7 and body ground. Is there continuity? YES: Repair short to ground in the wire between DLC terminal No. 7 and the ECM (E23). After repairing the wire, check the DTC with the HDS or a scan tool, and go to the indicated DTC's troubleshooting. NO: Go to step 9.
  9. Check for continuity between DLC terminal No. 7 and ECM terminal E23. Is there continuity? 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 DLC terminal No. 7 and the ECM (E23). After repairing the wire, check the DTC with the HDS or a scan tool, and go to the indicated DTC's troubleshooting.
  10. Turn the ignition switch OFF.
  11. Disconnect ECM connector E (31P). Make sure the HDS or a scan tool is disconnected from the DLC.
  12. Turn the ignition switch ON (II).
  13. Measure voltage between DLC terminals No. 5 and No. 7. Is there 0 V? 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 short to power in the wire between the DLC terminal No. 7 and the ECM (E23). After repairing the wire, check the DTC with the HDS or a scan tool, and go to the indicated DTC's troubleshooting.

Scheme 16

Scheme 16: Injector Replacement
Scheme 16: Injector Replacement

Scheme 17

Scheme 17
Scheme 17
  1. Relieve fuel pressure (see «FUEL PRESSURE RELIEVING»(ref-172052-S08838230172005021800000) ).
  2. Disconnect the connectors from the injectors (A), disconnect the ground cable (B), and remove the bracket (C).
  3. Disconnect the quick-connect fittings (D).
  4. Remove the fuel rail mounting nuts (E) from the fuel rail (F) then remove the fuel rail and injectors as an assembly.
  5. Remove the injector clip (G) from the injector.
  6. Remove the injector from the fuel rail.
  7. Coat the new O-rings (A) with clean engine oil, and insert the injectors (B) into the fuel rail (C).
  8. Install the injector clip (D).
  9. Coat the injector O-rings (E) with clean engine oil.
  10. Install the injectors into the fuel rail, then install the fuel rail into the intake manifold (G).
  11. Install the fuel rail mounting nuts, ground cable, and bracket.
  12. Connect the connectors to the injectors.
  13. Connect the quick-connect fittings.
  14. Turn the ignition switch ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel pressure in the fuel line rises. Repeat this two or three times, then check for fuel leakage.

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