Pgm-Fi System (V6): Diagnosis Honda Accord VIII

DTC P050A: Cold Start Idle Air Control System Performance Problem

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

1. Turn the ignition switch to ON (II).
2. Check for Pending or Confirmed DTCs with the HDS. Are any Pending or Confirmed DTCs other than P050A indicated? YES -Go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) . NO -Go to step 3.
3. Check for poor connections or a blockage at the intake air duct. Is it OK? YES -Go to step 4. NO -Reconnect or repair the intake air duct, then go to step 19 .
4. Check for damage at the air cleaner housing. Is it OK? YES -Go to step 5. NO -Replace the air cleaner housing (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-423687-S36123988032011092800000) ), then go to step 19 .
5. Check for dirt or debris in the air cleaner element. Is it dirty? YES -Replace the air cleaner element or remove the debris (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-423687-S36123988032011092800000) ), then go to step 19 . NO -Go to step 6.
6. Let the engine cool until the value of ECT SENSOR 1 is 122°F (50°C) or less.
7. Clear the DTC with the HDS.
8. Start the engine, and let it idle for 10 seconds or more.
9. Monitor the OBD STATUS for DTC P050A in the DTCs MENU with the HDS. Does the screen indicate FAILED? YES -Go to step 10. NO -If the screen indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the throttle body, the MAF sensor/IAT sensor, and the ECM/PCM. If the screen indicates EXECUTING, keep idling until a result comes on. If the screen indicates OUT OF CONDITION or NOT COMPLETED, go to step 6 .
10. Do the ETCS TEST in the INSPECTION MENU with the HDS. Is the THROTTLE ACTUATOR CONTROL VALVE normal? YES -Go to step 11. NO -Replace the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-423687-S06601890062011092800000) ), then go to step 19 .
11. Start the engine. Hold the engine speed at 3, 000 RPM without load (A/T in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.
12. While holding the engine speed at 2, 500 RPM for 30 seconds, check the MAF SENSOR in the DATA LIST with the HDS. Is there about 9.1-12.9 gm/s? YES -Go to step 13. NO -Replace the MAF sensor/IAT sensor (see «MAF SENSOR/IAT SENSOR REPLACEMENT»(ref-423675-S00209481412011092800000) ), then go to step 19 .
13. Turn the ignition switch to LOCK (0).
14. Allow the engine to cool to ambient temperature.
15. Note the ambient temperature.
16. Turn the ignition switch to ON (II).
17. Note the value of IAT SENSOR quickly in the DATA LIST with the HDS.
18. Compare the value of the IAT SENSOR and the ambient temperature. Does the value of the IAT SENSOR differ 5.4°F (3°C) or more? YES -Replace the MAF sensor/IAT sensor (see «MAF SENSOR/IAT SENSOR REPLACEMENT»(ref-423675-S00209481412011092800000) ), then go to step 19. NO -Check for dirt, carbon, or damage in the throttle bore. If there is dirt or carbon, clean the throttle body (see «THROTTLE BODY CLEANING»(ref-423687-S33047156022011092800000) ), then go to step 19. If there is damage in the throttle bore, replace the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-423687-S06601890062011092800000) ), then go to step 19.
19. Turn the ignition switch to ON (II).
20. Reset the ECM/PCM with the HDS.
21. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-423700-S15361251852011092800000) ).
22. Let the engine cool until the value of ECT SENSOR 1 is 122°F(50°C) or less.
23. Start the engine, and let it idle for 10 seconds or more.
24. Check for Pending or Confirmed DTCs with the HDS. Is DTC P050A indicated? YES -Check for poor connections or loose terminals at the throttle body, the MAF sensor/IAT sensor, and the ECM/PCM, then go to step 1 . NO -Go to step 25.
25. Monitor the OBD STATUS for DTC P050A in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES -Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 24 , go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) . NO -If the screen indicates FAILED, check for poor connections or loose terminals at the throttle body, the MAF sensor/IAT sensor, and the ECM/PCM, then go to step 1 . If the screen indicates EXECUTING, keep idling until a result comes on. If the screen indicates OUT OF CONDITION or NOT COMPLETED, go to step 22 .

DTC P050B: Cold Start Ignition Timing Control System Performance Problem

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

1. Turn the ignition switch to ON (II).
2. Check for Pending or Confirmed DTCs with the HDS. Are any Pending or Confirmed DTCs other than P050B indicated? YES -Go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) . NO -Go to step 3.
3. Check for poor connections or a blockage at the intake air duct. Is it OK? YES -Go to step 4. NO -Reconnect or repair the intake air duct, then go to step 21 .
4. Check for damage at the air cleaner housing. Is it OK? YES -Go to step 5. NO -Replace the air cleaner housing (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-423687-S36123988032011092800000) ), then go to step 21 .
5. Check for dirt or debris in the air cleaner element. Is it dirty? YES -Replace the air cleaner element or remove the debris (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-423687-S36123988032011092800000) ), then go to step 21 . NO -Go to step 6.
6. Let the engine cool until the value of ECT SENSOR 1 is 122°F (50°C) or less.
7. Clear the DTC with the HDS.
8. Start the engine, and let it idle for 10 seconds or more.
9. Monitor the OBD STATUS for DTC P050B in the DTCs MENU with the HDS. Does the screen indicate FAILED? YES -Go to step 10. NO -If the screen indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the CKP sensor, the throttle body, the MAF sensor/IAT sensor, ECT sensor 1, ECT sensor 2, and the ECM/PCM. If the screen indicates EXECUTING, keep idling until a result comes on. If the screen indicates OUT OF CONDITION or NOT COMPLETED, go to step 6 .
10. Inspect the ignition timing (see «IGNITION TIMING INSPECTION»(ref-423690-S26122387712011092800000) ). Is the ignition timing OK? YES -Go to step 12 . NO -Go to step 11.
11. Check for damage at the CKP sensor (see «CKP SENSOR REPLACEMENT»(ref-423675-S24130230632011092800000) ) and the CKP sensor pulse plate (see «CKP PULSE PLATE REPLACEMENT»(ref-423717-S12388147262011092800000) ). Is the CKP sensor and/or the CKP sensor pulse plate damaged? YES -Replace the CKP sensor (see «CKP SENSOR REPLACEMENT»(ref-423675-S24130230632011092800000) ) and/or the CKP sensor pulse plate (see «CKP PULSE PLATE REPLACEMENT»(ref-423717-S12388147262011092800000) ), then go to step 21 . NO -Go to step 28 .
12. Do the ETCS TEST in the INSPECTION MENU with the HDS. Is the THROTTLE ACTUATOR CONTROL VALVE normal? YES -Go to step 13. NO -Replace the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-423687-S06601890062011092800000) ), then go to step 21 .
13. Start the engine. Hold the engine speed at 3, 000 RPM without load (A/T in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.
14. While holding the engine speed at 2, 500 RPM for 30 seconds, check the MAF SENSOR in the DATA LIST with the HDS. Is there about 9.1-12.9 gm/s? YES -Go to step 15. NO -Replace the MAF sensor/IAT sensor (see «MAF SENSOR/IAT SENSOR REPLACEMENT»(ref-423675-S00209481412011092800000) ), then go to step 21 .
15. Turn the ignition switch to LOCK (0).
16. Allow ECT sensor 1 and ECT sensor 2 to cool to the ambient temperature.
17. Note the ambient temperature.
18. Turn the ignition switch to ON (II).
19. Quickly note the value of ECT SENSOR 1 and ECT SENSOR 2 in the DATA LIST with the HDS.
20. Compare the value of ECT SENSOR 1 and the ambient temperature, and the value of ECT SENSOR 2 and the ambient temperature individually. Does either sensor differ more than 5.4°F (3°C) from the ambient temperature? YES -Replace the sensor that differed more than 5.4°F (3°C) from the ambient temperature. Refill the cooling system (see «COOLANT CHECK»(ref-423681-S04277852872011092800000) ), then go to step 21. NO -Check and repair any problems with the following items. Repair or replace them if needed, then go to step 21. If all of the items are OK, go to step 28 . Engine compression and cylinder leakdown VTEC system Engine oil A/C system Power steering
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-423700-S15361251852011092800000) ).
24. Let the engine cool until the value of ECT SENSOR 1 is 122°F(50°C) or less.
25. Start the engine, and let it idle for 10 seconds or more.
26. Check for Pending or Confirmed DTCs with the HDS. Is DTC P050B indicated? YES -Check for poor connections or loose terminals at the CKP sensor, the throttle body, the MAF sensor/IAT sensor, ECT sensor 1, ECT sensor 2, and the ECM/PCM, then go to step 1 . NO -Go to step 27.
27. Monitor the OBD STATUS for DTC P050B in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES -Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 26 , go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) . NO -If the screen indicates FAILED, check for poor connections or loose terminals at the CKP sensor, the throttle body, the MAF sensor/IAT sensor, ECT sensor 1, ECT sensor 2, and the ECM/PCM, then go to step 1 . If the screen indicates EXECUTING, keep idling until a result comes on. If the screen indicates OUT OF CONDITION or NOT COMPLETED, go to step 24 .
28. Update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-423675-S07984033632011092800000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ).
29. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-423700-S15361251852011092800000) ).
30. Let the engine cool until the value of ECT SENSOR 1 is 122°F(50°C) or less.
31. Start the engine, and let it idle for 10 seconds or more.
32. Check for Pending or Confirmed DTCs with the HDS. Is DTC P050B indicated? YES -Check for poor connections or loose terminals at the CKP sensor, the throttle body, the MAF sensor/IAT sensor, ECT sensor 1, ECT sensor 2, and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), then go to step 30 . If the ECM/PCM was substituted, go to step 1 . NO -Go to step 33.
33. Monitor the OBD STATUS for DTC P050B in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES -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-423675-S30806157422011092800000) ). If any other Pending or Confirmed DTCs were indicated in step 32 , go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) . NO -If the screen indicates FAILED, check for poor connections or loose terminals at the CKP sensor, the throttle body, the MAF sensor/IAT sensor, ECT sensor 1, ECT sensor 2, and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), then go to step 30 . If the ECM/PCM was substituted, go to step 1 . If the screen indicates EXECUTING, keep idling until a result comes on. If the screen indicates OUT OF CONDITION or NOT COMPLETED, go to step 30 .

DTC P060A: ECM/PCM Internal Control Module Malfunction

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

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Check for Pending or Confirmed DTCs with the HDS. Is DTC P060A indicated? YES -Go to step 4. NO -Intermittent failure, the system is OK at this time.
4. Update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-423675-S07984033632011092800000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ).
5. Check for Pending or Confirmed DTCs with the HDS. Is DTC P060A indicated? YES -If the ECM/PCM was updated, substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), 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-423675-S30806157422011092800000) ). If any other Pending or Confirmed DTCs are indicated, go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) .

DTC P062F: ECM/PCM Internal Control Module Keep Alive Memory (KAM) Error

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

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Check for Pending or Confirmed DTCs with the HDS. Are any Pending or Confirmed DTCs indicated? YES -Go to step 4. NO -Intermittent failure, the system is OK at this time.
4. Update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-423675-S07984033632011092800000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ).
5. Check for Pending or Confirmed DTCs with the HDS. Is DTC P062F indicated? YES -If the ECM/PCM was updated, substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), 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-423675-S30806157422011092800000) ). If any other Pending or Confirmed DTCs are indicated, go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) .

DTC P16BB: Alternator B Terminal Circuit Low Voltage

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

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine.
4. Check under these conditions: A/C on Temperature control at maximum cool Blower fan at maximum speed Headlights on high beam Rear window defogger on
5. Hold the engine speed at 2, 000 RPM (A/T in P or N, M/T in neutral) 1 minute.
6. Check for Pending or Confirmed DTCs with the HDS. Is DTC P16BB indicated? YES -Go to step 7. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the alternator and the under-hood fuse/relay box, and check the battery performance (see «BATTERY TEST»(ref-423695-S25088262642011092800000) ).
7. Check for poor connections or loose terminals at the alternator and the under-hood fuse/relay box (+ B line). Are the connections and terminals OK? YES -Go to step 8. NO -Repair the connections or the terminals, then go to step 9 .
8. Check for an open in the wire between the alternator and the under-hood fuse/relay box at the engine harness. Is the harness OK? YES -Replace the alternator (see «ALTERNATOR REMOVAL AND INSTALLATION»(ref-423689-S08217277112011092800000) ), then go to step 9. NO -Repair open in the wire between the alternator and the under-hood fuse/relay box, then go to step 9.
9. Turn the ignition switch to ON (II).
10. Reset the ECM/PCM with the HDS.
11. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-423700-S15361251852011092800000) ).
12. Start the engine.
13. Check under these conditions: A/C on Temperature control at maximum cool Blower fan at maximum speed Headlights on high beam Rear window defogger on
14. Hold the engine speed at 2, 000 RPM (A/T in P or N, M/T in neutral) 1 minute.
15. Check for Pending or Confirmed DTCs with the HDS. Is DTC P16BB indicated? YES -Check for poor connections or loose terminals at the alternator and the under-hood fuse/relay box, 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»(ref-423675-S09378413782011092800000) .

DTC P16BC: Alternator FR Terminal Circuit/IGP Circuit Low Voltage

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. Check for poor connections or loose terminals at the alternator 4P connector. Are the connections and terminals OK? YES -Go to step 2. NO -Repair the connections or terminals, then go to step 18 .
2. Turn the ignition switch to ON (II).
3. Clear the DTC with the HDS.
4. Start the engine.
5. Check under these conditions: A/C on Temperature control at maximum cool Blower fan at maximum speed Headlights on high beam Rear window defogger on
6. Hold the engine speed at 2, 000 RPM (A/T in P or N, M/T in neutral) for 1 minute.
7. Check for Pending or Confirmed DTCs with the HDS. Is DTC P16BC indicated? YES -Go to step 8. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the alternator.
8. Turn the ignition switch to LOCK (0).
9. Disconnect the alternator 4P connector.
10. Turn the ignition switch to ON (II).
11. Measure the voltage between alternator 4P connector terminal No. 1 and body ground. **: *10-12 models Is there battery voltage? YES -Go to step 12. NO -Repair open in the wire between the alternator (IG1 line) and the No. 7 ACG (15 A) fuse in the driver's under-dash fuse/relay box, then go to step 17 .
12. Measure the voltage between alternator 4P connector terminal No. 4 and body ground. **: '10-12 models Is there about 5 V? YES -Replace the alternator (see «ALTERNATOR REMOVAL AND INSTALLATION»(ref-423689-S08217277112011092800000) ), then go to step 17 . NO -Go to step 13.
13. Turn the ignition switch to LOCK (0).
14. Jump the SCS line with the HDS.
15. Disconnect ECM/PCM connector C (49P).
16. Check for continuity between alternator 4P connector terminal No. 4 and ECM/PCM connector terminal C44. **:'10-12 models Is there continuity? YES -Go to step 26 . NO -Repair open in the wire between the ECM/PCM (C44) and the alternator, then go to step 18 .
17. Turn the ignition switch to LOCK (0).
18. Reconnect all connectors.
19. Turn the ignition switch to ON (II).
20. Reset the ECM/PCM with the HDS.
21. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-423700-S15361251852011092800000) ).
22. Start the engine.
23. Check under these conditions: A/C on Temperature control at maximum cool Blower fan at maximum speed Headlights on high beam Rear window defogger on
24. Hold the engine speed at 2, 000 RPM (A/T in P or N, M/T in neutral) for 1 minute.
25. Check for Pending or Confirmed DTCs with the HDS. Is DTC P16BC indicated? YES -Check for poor connections or loose terminals at the alternator and the ECM/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»(ref-423675-S09378413782011092800000) .
26. Reconnect all connectors.
27. Update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-423675-S07984033632011092800000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ).
28. Start the engine.
29. Check under these conditions: A/C on Temperature control at maximum cool Blower fan at maximum speed Headlights on high beam Rear window defogger on
30. Hold the engine speed at 2, 000 RPM (A/T in P or N, M/T in neutral) for 1 minute.
31. Check for Pending or Confirmed DTCs with the HDS. Is DTC P16BC indicated? YES -Check for poor connections or loose terminals at the alternator and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), then go to step 28 . 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-423675-S30806157422011092800000) ). If any other Pending or Confirmed DTCs are indicated, go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) .

DTC P2A00: Rear A/F Sensor (Bank 1, Sensor 1) Circuit Range/Performance Problem; DTC P2A03: Front A/F Sensor (Bank 2, Sensor 1) Circuit Range/Performance Problem

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ). Information marked with an asterisk (*) applies to the front bank (Bank 2).

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine. Hold the engine speed at 3, 000 RPM without load (A/T in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.
4. Test-drive under these conditions: Engine coolant temperature (ECT SENSOR 1) above 158°F(70°C) A/T in D, M/T in 3rd Vehicle speed between 25-55 mph (40-88 km/h) for 5 minutes Drive at a steady speed between 55-75 mph (88-120 km/h) for 10 seconds, then decelerate (with the throttle fully closed) for 8 seconds
5. Monitor the OBD STATUS for DTC P2A00 and/or P2A03* in the DTCs MENU with the HDS. Does the screen indicate FAILED? YES -Go to step 6. NO -If the screen indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM. If the screen indicates EXECUTING, keep driving until a result comes on. If the screen indicates OUT OF CONDITION or NOT COMPLETED, go to step 3 and recheck.
6. Turn the ignition switch to LOCK (0).
7. Replace the A/F sensor (Sensor 1) (see «A/F SENSOR REPLACEMENT»(ref-423675-S17661271892011092800000) ).
8. Turn the ignition switch to ON (II).
9. Reset the ECM/PCM with the HDS.
10. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-423700-S15361251852011092800000) ).
11. Test-drive under these conditions: Engine coolant temperature (ECT SENSOR 1) above 158°F(70°C) A/T in D, M/T in 3rd Vehicle speed between 25-55 mph (40-88 km/h) for 5 minutes Drive at a steady speed between 55-75 mph (88-120 km/h) for 10 seconds, then decelerate (with the throttle fully closed) for 8 seconds
12. Check for Pending or Confirmed DTCs with the HDS. Is DTC P2A00 and/or P2A03* indicated? YES -Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM, then go to step 1 . NO -Go to step 13.
13. Monitor the OBD STATUS for DTC P2A00 and/or P2A03* in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES -Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 12 , go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) . NO -If the screen indicates FAILED, check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM, then go to step 1 . If the screen indicates EXECUTING, keep driving until a result comes on. If the screen indicates OUT OF CONDITION or NOT COMPLETED, go to step 11 .

DLC Circuit Troubleshooting

Note. If you suspect the HDS or the HDS DLC cable may be the source of the communication problem, verify that they are working properly by connecting them to a known-good, like vehicle and system, and checking for communication problems.

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1. Turn the ignition switch to LOCK (0).
2. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(ref-423698-S35651644612011092800000) ).
3. Turn the ignition switch to ON (II), and read the HDS. Does the HDS identify the vehicle? YES -Go to step 4. NO -Go to step 21 .
4. Check for Pending or Confirmed DTCs in the PGM-FI system with the HDS. Are any Pending or Confirmed DTCs indicated? YES -Go to the indicated «DTC'S TROUBLESHOOTING»(ref-423675-S09378413782011092800000) . NO - If the HDS does not communicate with the SRS, go to step 5. If the HDS does not communicate with the VSA system, go to step 7 . If the HDS does not communicate with the TPMS, go to step 9 . If the HDS does not communicate with the IMMOBI (immobilizer) system, go to step 11 . If the HDS does not communicate with the BODY ELECTRICAL system, go to step 13 .
5. Turn the ignition switch to LOCK (0).
6. Turn the ignition switch to ON (II), and watch the SRS indicator. Does the SRS indicator come on and go off? YES -Go to step 15 . NO -Go to the SRS general troubleshooting information (see «GENERAL TROUBLESHOOTING INFORMATION»(ref-423705-S26925367372011092800000) ).
7. Turn the ignition switch to LOCK (0).
8. Turn the ignition switch to ON (II), and watch the VSA indicator. Does the VSA indicator come on and go off? YES -Go to step 15 . NO -Go to the symptom troubleshooting for ABS indicator, brake system indicator, and VSA indicator do not go off (see «SYMPTOM TROUBLESHOOTING»(ref-423725-S16338418802011092800000) ).
9. Turn the ignition switch to LOCK (0).
10. Turn the ignition switch to ON (II), and watch the TPMS indicator. Does the TPMS indicator come on and go off? YES -Go to step 15 . NO -Go to the symptom troubleshooting for TPMS indicator does not go off, and no DTCs are stored (see «TPMS INDICATOR DOES NOT GO OFF, AND NO DTCS ARE STORED»(ref-423726-S01774021492011092800000) ).
11. Turn the ignition switch to LOCK (0).
12. Turn the ignition switch to ON (II), and watch the immobilizer indicator. Does the immobilizer indicator stay on or flash? YES -Go to the immobilizer system's troubleshooting (see «SYSTEM DESCRIPTION»(ref-423699-S27340783402011092800000) ). NO -Go to step 15 .
13. Do the gauge self-diagnostic function (see «SELF-DIAGNOSTIC FUNCTION»(ref-423701-S28731969292011092800000) ).
14. Check the gauge display. Is Error 2 indicated? YES -Check for B-CAN system DTCs (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE 1 AND TEST MODE 2 (WITHOUT THE HDS)»(ref-423728-S07617131472011092800000) ). NO -Go to step 15.
15. Turn the ignition switch to LOCK (0), then do the battery terminal disconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(ref-423695-S16071056072011092800000) ), and wait at least 3 minutes before continuing.
16. Disconnect the HDS from the DLC.
17. Check for continuity between DLC terminal No. 7 and body ground. Is there continuity? YES -Go to step 18. NO -Go to step 19 .
18. Continue to check for continuity between DLC terminal No. 7 and body ground, while disconnecting these connectors, one at a time: SRS unit connector A (39P) VSA modulator-control unit 36P connector TPMS control unit 20P connector Immobilizer-keyless control unit 7P connector Audio unit connector A (24P) Driver's under-dash fuse/relay box connector Q (20P) Does continuity go away when one of the above connectors is disconnected? YES -Replace the part that caused continuity go away when it was disconnected. NO -Repair short in the wire between the DLC (K-line) and the VSA modulator-control unit, the SRS unit, the TPMS control unit, the immobilizer-keyless control unit, the audio unit, or the driver's under-dash fuse/relay box.
19. Connect DLC terminal No. 7 to body ground with a jumper wire.
20. Check for continuity between body ground and these connector terminals: CONNECTOR TERMINALS CHART Connector Terminal SRS unit A(39P) No. 18 (LT BLU) VSA modulator-control unit 36P No. 3 (LT BLU) TPMS control unit 20P No. 7 (LT BLU) Immobilizer-keyless control unit 7P No. 5 (LT BLU) Audio unit A (24P) No. 3 (LT BLU) Driver's under-dash fuse/relay box Q (20P) No. 16 (LT BLU) Is there continuity between body ground and each of the terminals in the chart? YES -Replace the part that does not communicate with the HDS. NO -Repair open in the wire between the DLC (K-line) and the appropriate connector.
21. Check for B-CAN system DTCs without the HDS (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE 1 AND TEST MODE 2 (WITHOUT THE HDS)»(ref-423728-S07617131472011092800000) ). Is DTC U0029 and/or U0100 indicated? YES -Go to step 32 . NO -Go to step 22.
22. Turn the ignition switch to LOCK (0).
23. Disconnect the HDS from the DLC.
24. Measure the voltage between DLC terminal No. 16 and body ground. Is there battery voltage? YES -Go to step 25. NO -Repair open in the wire between DLC terminal No. 16 and the No. 15 BACK UP (10 A) fuse in the under-hood fuse/relay box.
25. Measure the voltage between DLC terminals No. 4 and No. 16. Is there battery voltage? YES -Go to step 26. NO -Repair open in the wire between DLC terminal No. 4 and body ground (G502) (see «DASHBOARD WIRE HARNESS (VIEW OF DRIVER'S SIDE)»(ref-423724-S06736069682011092800000) ).
26. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(ref-423698-S35651644612011092800000) ).
27. Jump the SCS line with the HDS.
28. Disconnect ECM/PCM connector A (49P).
29. Disconnect the HDS from the DLC.
30. Check for continuity between ECM/PCM connector terminal A48 and DLC terminal No. 6. Is there continuity? YES -Go to step 31. NO -Repair open in the wire between the ECM/PCM (A48) and DLC terminal No. 6.
31. Check for continuity between ECM/PCM connector terminal A49 and DLC terminal No. 14. Is there continuity? YES -Update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-423675-S07984033632011092800000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), then recheck. If the symptom/indication goes away and the ECM/PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the ECM/PCM was substituted, replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(ref-423675-S30806157422011092800000) ). NO -Repair open in the wire between the ECM/PCM (A49) and DLC terminal No. 14.
32. Try to start the engine. Does the engine start and idle smoothly? YES -Go to the F-CAN circuit troubleshooting (see «F-CAN CIRCUIT TROUBLESHOOTING»(ref-423675-S27711206862011092800000) ). NO -Go to step 33.
33. Turn the ignition switch to LOCK (0).
34. Check the No. 3-1 IG MAIN (50 A) fuse in the under-hood fuse/relay box. Is the fuse OK? YES -Repair open in the wire between the No. 3-1 IG MAIN (50 A) fuse and the ignition switch. If the wire is OK, go to step 35. NO -Repair short in the wire between the No. 3-1 IG MAIN (50 A) fuse and the ignition switch. Also replace the No. 3-1 IG MAIN (50 A) fuse.
35. Inspect the No. 17 FI MAIN (15 A) fuse in the under-hood fuse/relay box. Is the fuse OK? YES -Go to step 42 . NO -Go to step 36.
36. Remove the blown No. 17 Fl MAIN (15 A) fuse from the under-hood fuse/relay box.
37. Remove PGM-FI main relay 1 (A) from the under-hood fuse/relay box.
38. Check for continuity between body ground and PGM-FI main relay 1 4P connector terminals No. 1 and No. 4 individually. Is there continuity? YES -Replace the under-hood fuse/relay box (see «REMOVAL AND INSTALLATION»(ref-423716-S36378573352011092800000) ). Also replace the No. 17 Fl MAIN (15 A) fuse. NO -Go to step 39.
39. While disconnecting each of the parts or connectors below, one at a time, check for continuity between PGM-FI main relay 1 4P connector terminal No. 2 and body ground: PGM-FI main relay 2 (FUEL PUMP) ECM/PCM connector B (49P) Each injector 2P connector Camshaft position (CMP) sensor 3P connector Crankshaft position (CKP) sensor 3P connector MAF sensor/IAT sensor 5P connector Electronic throttle control system (ETCS) control relay Does continuity go away when one of the above parts or connectors is disconnected? YES -Replace the part that made the short to body ground go away when disconnected. If the part is the ECM/PCM, update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-423675-S07984033632011092800000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), then recheck. If the symptom/indication goes away and the ECM/PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the ECM/PCM was substituted, replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(ref-423675-S30806157422011092800000) ). Also replace the No. 17 FIMAIN(15A)fuse. NO -Go to step 40.
40. Disconnect the connectors from these components: PGM-FI main relay 2 (FUEL PUMP) ECM/PCM connector B (49P) Injectors Camshaft position (CMP) sensor Crankshaft position (CKP) sensor MAF sensor/IAT sensor Electronic throttle control system (ETCS) control relay
41. Check for continuity between PGM-FI main relay 1 4P connector terminal No. 2 and body ground. Is there continuity? YES -Repair short in the wire between PGM-FI main relay 1 and each part. Also replace the No. 17 Fl MAIN (15A)fuse. NO -Replace PGM-FI main relay 1. Also replace the No. 17 FI MAIN (15A) fuse.
42. Inspect the No. 9 FUEL PUMP (20 A) fuse in the driver's under-dash fuse/relay box. Is the fuse OK? YES -Go to step 54 . NO -Go to step 43.
43. Remove the blown No. 9 FUEL PUMP (20 A) fuse from the driver's under-dash fuse/relay box.
44. Remove PGM-FI main relay 2 (FUEL PUMP) (A) from the driver's under-dash fuse/relay box.
45. Test PGM-FI main relay 2 (FUEL PUMP) (see «POWER RELAY TEST»(ref-423696-S18552297322011092800000) ). Is the relay OK? YES -Go to step 46. NO -Replace PGM-FI main relay 2 (FUEL PUMP). Also replace the No. 9 FUEL PUMP (20 A) fuse.
46. Check for continuity between PGM-FI main relay 2 (FUEL PUMP) 4P connector terminal No. 2 and body ground. Is there continuity? YES -Go to step 47. NO -Go to step 50 .
47. Jump the SCS line with the HDS.
48. Disconnect ECM/PCM connector B (49P).
49. Check for continuity between ECM/PCM connector terminal B42 and body ground. **:'10-12 models Is there continuity? YES -Repair short in the wire between the No. 9 FUEL PUMP (20 A) fuse and the ECM/PCM (B42), between the No. 9 FUEL PUMP (20 A) fuse and PGM-FI main relay 2 (FUEL PUMP), or between the No. 9 FUEL PUMP (20 A) fuse and the immobilizer control unit. Also replace the No. 9 FUEL PUMP (20 A) fuse. NO -Replace the No. 9 FUEL PUMP (20 A) fuse, and update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-423675-S07984033632011092800000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), then recheck. If the symptom/indication goes away and the ECM/PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the ECM/PCM was substituted, replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(ref-423675-S30806157422011092800000) ).
50. Remove the rear seat cushion (see «SEAT CUSHION - 2-DOOR»(ref-423729-S01976868082011092800000) ).
51. Remove the access panel from the floor (see «FUEL TANK UNIT REMOVAL AND INSTALLATION»(ref-423686-S04070667502011092800000) ).
52. Disconnect the fuel pump 4P connector.
53. Check for continuity between fuel pump 4P connector terminal No. 2 and body ground. Is there continuity? YES -Repair short in the wire between the fuel pump and PGM-FI main relay 2 (FUEL PUMP). Also replace the No. 9 FUEL PUMP (20 A) fuse. NO -Check the fuel pump, and replace it if needed (see «FUEL FILTER REPLACEMENT»(ref-423686-S16874212132011092800000) ). Also replace the No. 9 FUEL PUMP (20 A) fuse.
54. Jump the SCS line with the HDS.
55. Disconnect ECM/PCM connectors A (49P) and B (49P).
56. Turn the ignition switch to ON (II).
57. Measure the voltage between ECM/PCM connector terminal B42 and body ground. **: '10-12 models Is there battery voltage? YES -Go to step 58. NO -Repair open in the wire between the No. 9 FUEL PUMP (20 A) fuse and the ECM/PCM (B42).
58. Measure the voltage between ECM/PCM connector terminal A6 and body ground. Is there battery voltage? YES -Go to step 63 . NO -Go to step 59.
59. Turn the ignition switch to LOCK (0).
60. Remove PGM-FI main relay 1 (A) from the under-hood fuse/relay box.
61. Measure the voltage between PGM-FI main relay 1 4P connector terminal No. 4 and body ground. Is there battery voltage? YES -Go to step 62. NO -Replace the under-hood fuse/relay box (see «REMOVAL AND INSTALLATION»(ref-423716-S36378573352011092800000) ).
62. Check for continuity between PGM-FI main relay 1 4P connector terminal No. 3 and ECM/PCM connector terminal A6. Is there continuity? YES -Test PGM-FI main relay 1 (see «POWER RELAY TEST»(ref-423696-S18552297322011092800000) ). If the relay is OK, update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-423675-S07984033632011092800000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), then recheck. If the symptom/indication goes away and the ECM/PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the ECM/PCM was substituted, replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(ref-423675-S30806157422011092800000) ). NO -Repair open in the wire between the ECM/PCM (A6) and PGM-FI main relay 1.
63. Turn the ignition switch to LOCK (0).
64. Remove PGM-FI main relay 1 (A) from the under-hood fuse/relay box.
65. Measure the voltage between PGM-FI main relay 1 4P connector terminal No. 1 and body ground. Is there battery voltage? YES -Go to step 66. NO -Replace the under-hood fuse/relay box (see «REMOVAL AND INSTALLATION»(ref-423716-S36378573352011092800000) ).
66. Check for continuity between PGM-FI main relay 1 4P connector terminal No. 2 and ECM/PCM connector terminal B3. **: '10-12 models Is there continuity? YES -Go to step 67. NO -Repair open in the wire between the ECM/PCM (B3) and PGM-FI main relay 1.
67. Test PGM-FI main relay 1 (see «POWER RELAY TEST»(ref-423696-S18552297322011092800000) ). Is PGM-FI main relay 1 OK? YES -Go to step 68. NO -Replace PGM-FI main relay 1.
68. Disconnect ECM/PCM connectors A (49P), B (49P), and C (49P).
69. Check for continuity between body ground and ECM/PCM connector terminals A41, B1, B40, B41, C1, and C41 individually. **:'10-12 models **:'10-12 models Is there continuity? YES -Update the ECM/PCM if it does not have the latest software (see «ECM/PCM UPDATE»(ref-423675-S07984033632011092800000) ), or substitute a known-good ECM/PCM (see «SUBSTITUTING THE ECM/PCM»(ref-423698-S03157902762011092800000) ), then recheck. If the symptom/indication goes away and the ECM/PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the ECM/PCM was substituted, replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(ref-423675-S30806157422011092800000) ). NO -Repair open in the wire(s) between the ECM/PCM (A41, B1, B40, B41, C1, C41)and body ground (G101) (see «ENGINE WIRE HARNESS (M/T)»(ref-423724-S38800455012011092800000) ).

Scheme 136

Scheme 137

1. Relieve the fuel pressure (see «FUEL PRESSURE RELIEVING»(ref-423686-S00692949972011092800000) ).
2. Remove the intake manifold (see «REMOVAL»(ref-423685-S37156485832011092800000) ).
3. Disconnect the quick-connect fitting (A).
4. Remove the fuel joint hose mounting bolt (B).
5. Disconnect the connectors (C) from the injectors.
6. Remove the fuel rail mounting bolts (D) from the fuel rails (E).
7. Remove the fuel rails and the injectors from the injector base.
8. Remove the injector clips (F) form the fuel rails.
9. Remove the injectors from the fuel rails.
10. Coat the new O-rings (black) (A) with clean engine oil, and insert the injectors (B) into the fuel rails (C).
11. Install the injector clips (D).
12. Coat the new O-rings (green) (E) with clean engine oil.
13. Install the fuel rails and injectors in the injector base (F).
14. Install the fuel rail mounting bolts, and connect the connectors on the injectors.
15. Install the fuel joint hose mounting bolt.
16. Connect the quick-connect fitting (see «FUEL LINE/QUICK-CONNECT FITTING INSTALLATION»(ref-423686-S17982967202011092800000) ).
17. Turn the ignition switch to ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel rail will be pressurized. Repeat this two or three times, then make sure there are no fuel leaks.
18. Install the intake manifold with a new gasket (see «INSTALLATION»(ref-423685-S10492844262011092800000) ).

Scheme 138

1. Disconnect the MAP sensor connector (A).
2. Remove the screw (B).
3. Remove the MAP sensor (C).
4. Install the parts in the reverse order of removal with a new O-ring (D).

Scheme 139

1. Disconnect the MAF sensor/IAT senor 5P connector (A).
2. Remove the screw (B).
3. Remove the MAF sensor/IAT sensor (C).
4. Install the parts in the reverse order of removal with a new O-ring (D).

Scheme 140

1. Drain the engine coolant (see «COOLANT CHECK»(ref-423681-S04277852872011092800000) ).
2. Remove the engine cover (see step 2 under «INTAKE MANIFOLD REMOVAL AND INSTALLATION»(ref-423685-S35751896362011092800000) ).
3. Disconnect the ECT sensor 1 2P connector (A).
4. Remove ECT sensor 1 (B).
5. Install the parts in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see «COOLANT CHECK»(ref-423681-S04277852872011092800000) ).

Scheme 141

1. Remove the splash shield (see «FRONT SPLASH SHIELD REPLACEMENT»(ref-423713-S07678673662011092800000) ).
2. Drain the engine coolant (see «COOLANT CHECK»(ref-423681-S04277852872011092800000) ).
3. Disconnect the ECT sensor 2 2P connector (A).
4. Remove ECT sensor 2 (B).
5. Install the parts in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see «COOLANT CHECK»(ref-423681-S04277852872011092800000) ).