Contents Wiring diagrams Section: Testing & Diagnostics All sections

Pgm-Fi System: Diagnosis Honda Insight ZE1

Testing & Diagnostics 33 illustrations ~2961 words

DTC Troubleshooting

DTCDescription
DTC P0106MAP Sensor Vacuum Connection Problem
DTC P0107MAP Sensor Circuit Low Voltage
DTC P0108MAP Sensor Circuit High Voltage
DTC P0111IAT Sensor Circuit Range/ Performance Problem (2006 model)
DTC P116ECT Sensor Circuit Range/ Performance Problem (2006 model)
DTC P0112IAT Sensor Circuit Low Voltage
DTC P0113IAT Sensor Circuit High Voltage
DTC P0116ECT Sensor Circuit Range/ Performance Problem (2000-2005 models)
DTC P0116ECT Sensor Circuit Range/ Performance Problem (2006 model)
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 P0125ECT Sensor Malfunction/Slow Response (2004-2005 models)
DTC P0125ECT Sensor Malfunction/Slow Response (2006 model)
DTC P0128Cooling System Malfunction
DTC P0133A/F Sensor (Sensor 1) Circuit Slow Response (2004-2006 models)
DTC P1163A/F Sensor (Sensor 1)) Circuit Slow Response (2002-2003 M/T models) (2001-2003 CVT models)
DTC P0134A/F Sensor (Sensor 1) Signal Stuck Lean
DTC P0135A/F Sensor (Sensor 1) Heater Circuit Malfunction (2002-2006 M/T models) (CVT models)
DTC P0137Secondary HO2S (Sensor 2) Circuit Low Voltage
DTC P0138Secondary HO2S (Sensor 2) Circuit High Voltage (2000-2004 models)
DTC P0138Secondary HO2S (Sensor 2) Circuit High Voltage (2005-2006 models)
DTC P0139Secondary HO2S (Sensor 2) Slow Response
DTC P0141Secondary HO2S (Sensor 2) Heater Circuit Malfunction
DTC P0143Third H02S (Sensor 3) Circuit Low Voltage (2002-2006 M/T models)
DTC P0144Third H02S (Sensor 3) Circuit High Voltage (2002-2006 M/T models)
DTC P0145Third H02S (Sensor 3) Slow Response (2002-2006 M/T models)
DTC P0147Third H02S (Sensor 3) Heater Circuit Malfunction (2002-2006 M/T models)
DTC P0171Fuel System Too Lean
DTC P0172Fuel System Too Rich
DTC P0300Random Misfire and Any Combination of the Following
DTC P0301No. 1 Cylinder Misfire Detected
DTC P0302No. 2 Cylinder Misfire Detected
DTC P0303No. 3 Cylinder Misfire Detected
DTC P0301No. 1 Cylinder Misfire Detected
DTC P0302No. 2 Cylinder Misfire Detected
DTC P0303No. 3 Cylinder Misfire Detected
DTC P0325Knock Sensor Circuit Malfunction
DTC P0335CKP Sensor No Signal
DTC P0336CKP Sensor Intermittent Interruption (2000-2003 models)
DTC P0339CKP Sensor Intermittent Interruption (2004-2006 models)
DTC P0340CMP Sensor A (TDC 1) No Signal (2004-2006 models)
DTC P0344CMP Sensor A (TDC 1) Intermittent Interruption (2004-2006 models)
DTC P0365CMP Sensor B (TDC 2) No Signal (2004-2006 models)
DTC P0369CMP Sensor B (TDC 2) Intermittent Interruption (2004-2006 models)
DTC P1361CMP Sensor A (TDC 1) Circuit Intermittent Interruption (2000-2003 models)
DTC P1362CMP Sensor A (TDC 1) No Signal (2000-2003 models)
DTC P1366CMP Sensor B (TDC 2) Circuit Intermittent Interruption (2000-2003 models)
DTC P1367CMP Sensor B (TDC 2) No Signal (2000-2003 models)
DTC P0500VSS Circuit Malfunction
DTC P0560ECM Power Source Circuit Unexpected Voltage (2001-2004 models)
DTC P0563ECM Power Source Circuit Unexpected Voltage (2005-2006 models)
DTC P0607ECM Internal Circuit Malfunction (2004-2006 models)
DTC P1607ECM Internal Circuit Malfunction (2000-2003 models)
DTC P0630VIN Not Programmed or Mismatch (2005-2006 models)
DTC P0685ECM Power Control Circuit/Internal Circuit Malfunction (2006 model)
DTC P07xxA/T Control System Malfunction
DTC P16xxA/T Control System Malfunction
DTC P17xxA/T Control System Malfunction
DTC P18xxA/T Control System Malfunction
DTC P21xxA/T Control System Malfunction
DTC P1106BARO Sensor Range/Performance Problem (2000-2003 models)
DTC P2227BARO Sensor Range/Performance Problem (2004-2006 models)
DTC P1107BARO Sensor Circuit Low Voltage (2000-2003 models)
DTC P1108BARO Sensor Circuit High Voltage (2000-2003 models)
DTC P2228BARO Sensor Circuit Low Voltage (2004-2006 models)
DTC P2229BARO Sensor Circuit High Voltage (2004-2006 models)
DTC P1109BARO Sensor Circuit Out of Range High
DTC P1121TP Sensor Signal Lower Than Expected
DTC P1122TP Sensor Signal Higher Than Expected
DTC P1128MAP Sensor Signal Lower Than Expected
DTC P1129MAP Sensor Signal Higher Than Expected
DTC P1130Secondary HO2S (Sensor 2) and Third HO2S (Sensor 3) Malfunction (2002-2006 M/T models)
DTC P1157A/F Sensor (Sensor 1) AFS Circuit High Voltage (2002-2006 M/T models) (CVT model)
DTC P1158A/F Sensor (Sensor 1) AFS-Circuit Low Voltage (2002-2003 M/T models) (2001-2003 CVT models)
DTC P2252A/F Sensor (Sensor 1) AFS-Circuit Low Voltage (2004-2006 models)
DTC P1159A/F Sensor (Sensor 1) AFS+ Circuit Low Voltage (2002-2003 M/T models) (2001-2003 CVT models)
DTC P2238A/F Sensor (Sensor 1) AFS+ Circuit Low Voltage (2004-2006 models)
DTC P1162A/F Sensor (Sensor 1) Circuit Malfunction (2000-2001 M/T models)
DTC P1163A/F Sensor (Sensor 1) Slow Response (2000-2001 M/T models)
DTC P1164A/F Sensor (Sensor 1) Range/Performance Problem (2000-2003 M/T models) (2001-2003 CVT models)
DTC P2A00A/F Sensor (Sensor 1) Range/Performance Problem (2004-2006 models)
DTC P1165A/F sensor (Sensor 1) Circuit Range/Performance Problem (2000-2001 M/T models)
DTC P1166A/F Sensor (Sensor 1) Heater Circuit Malfunction (2000-2001 M/T models)
DTC P1167A/F Sensor (Sensor 1) Heater System Malfunction (2000-2002 M/T models)
DTC P1168A/F Sensor (Sensor 1) LABEL Circuit Low Input (2000-2001 M/T models)
DTC P1169A/F Sensor (Sensor 1) LABEL Circuit High Input (2000-2001 M/T models)
DTC P1172A/F Sensor (Sensor 1) Circuit Out of Range High (2005-2006 models)
DTC P1297ELD Circuit Low Voltage
DTC P1298ELD Circuit High Voltage
DTC P1522Brake Booster Pressure Sensor Circuit Low Voltage
DTC P1523Brake Booster Pressure Sensor Circuit High Voltage
DTC P1541HTRS Passenger Compartment Heater Standby Signal Circuit Low Input
DTC P1542HTRS Passenger Compartment Heater Standby Signal Circuit High Input
DTC P15B2Brake Fluid Pressure Sensor A Circuit Low Voltage (2005-2006 M/T models)
DTC P15B3Brake Fluid Pressure Sensor A Range/Performance Problem (2005-2006 M/T models)
DTC P15B4Brake Fluid Pressure Sensor B Circuit Low Voltage (2005-2006 M/T models)
DTC P15B5Brake Fluid Pressure Sensor B Range Performance Problem (2005-2006 M/T models)
DTC P15B6Brake Fluid Pressure Sensor A/B Circuit Malfunction (2005-2006 M/T models)
DTC P1600IMA System Malfunction
DTC P1601IMA System Malfunction
DTC P1640ACTTRQ Motor Torque Signal Circuit Low Input
DTC P1641ACTTRQ Motor Torque Signal Circuit High Input
DTC P1642QBATT Battery Signal Circuit Low Input
DTC P1643QBATT Battery Signal Circuit High Input
DTC P1644MOTFSA Motor Control Module Signal Malfunction
DTC P1645MOTFSB Motor Control Module Signal Malfunction
DTC P1646MOTSTB Motor Control Module Signal Malfunction
DTC P1655A/T Fl Signal A/B Circuit Malfunction (2001-2003 CVT models)
DTC U0101A/T Fl Signal A/B Circuit Malfunction (2004-2006 CVT models)
DTC P2270Secondary HO2S (Sensor 2) Circuit Signal Stuck Lean (2005-2006 models)
DTC P2271Secondary HO2S (Sensor 2) Circuit Signal Stuck Rich (2005-2006 models)
DTC P2610ECM Ignition Off Internal Timer Malfunction (2006 model)

DTC INDEX

DTC P07xx: A/T Control System Malfunction; DTC P16xx: A/T Control System Malfunction; DTC P17xx: A/T Control System Malfunction; DTC P18xx: A/T Control System Malfunction; DTC P21xx: A/T Control System Malfunction

Note. This DTC is stored when there is a problem in the A/T control system. Check for A/T DTCs with the HDS, and go to the indicated DTC TROUBLESHOOTING . Before you troubleshoot, record all freeze data and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

DTC P15B2: Brake Fluid Pressure Sensor A Circuit Low Voltage (2005-2006 M/T models)

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

Scheme 3

Scheme 3: DTC P15B2: Brake Fluid Pressure Sensor A Circuit Low Voltage (2005-2006 M/T models)

Scheme 4

Scheme 4

Scheme 5

Scheme 5

Scheme 6

Scheme 6

Scheme 7

Scheme 7

Scheme 8

Scheme 8

Scheme 9

Scheme 9
  1. Turn the ignition switch ON (II).
  2. Check BRAKE FLUID PRESSURE SENSOR A with the HDS. Is there 0.08 V or less? YES - Go to step 3. NO - The system is OK at this time. Check for poor connections or loose terminals at brake fluid pressure sensor A and the ECM.
  3. Turn the ignition switch OFF.
  4. Disconnect the brake fluid pressure sensor A 3P connector.
  5. Turn the ignition switch ON (II).
  6. Measure voltage between brake fluid pressure sensor A 3P connector terminals No. 1 and No. 2. Is there about 5.0 V? YES - Go to step 11 . NO - Go to step 7.
  7. Turn the ignition switch OFF, and wait for 10 seconds.
  8. Disconnect ECM connector C (31P).
  9. Connect ECM connector terminal C28 to body ground with a jumper wire.
  10. Check for continuity between brake fluid pressure sensor A 3P connector terminal No. 2 and body ground. Is there continuity? YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/ indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Repair open in the wire between the ECM (C28) and brake fluid pressure sensor A.
  11. Turn the ignition switch OFF, and wait for 10 seconds.
  12. Disconnect ECM connector A (32P).
  13. Check for continuity between brake fluid pressure sensor A 3P connector terminal No. 3 and body ground. Is there continuity? YES - Repair short to ground between the ECM (A5) and brake fluid pressure sensor A. NO - Go to step 14.
  14. Connect ECM connector terminal A5 to body ground with a jumper wire.
  15. Check for continuity between brake fluid pressure sensor A 3P connector terminal No. 3 and body ground. Is there continuity? YES - Go to step 16. NO - Repair open in the wire between the ECM (A5) and brake fluid pressure sensor A.
  16. Connect ECM connector A (32P).
  17. Connect brake fluid pressure sensor A 3P connector terminals No. 2 and No. 3 with a jumper wire.
  18. Turn the ignition switch ON (II).
  19. Check BRAKE FLUID PRESSURE SENSOR A with the HDS. Is there 0.08 V or less? YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Replace brake fluid pressure sensor A (see «BRAKE FLUID PRESSURE SENSOR REPLACEMENT»(ref-219308-S29106053842006021300000) ).

DTC P15B3: Brake Fluid Pressure Sensor A Range/Performance Problem (2005-2006 M/T models)

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

Scheme 10

Scheme 10: DTC P15B3: Brake Fluid Pressure Sensor A Range/Performance Problem (2005-2006 M/T models)

Scheme 11

Scheme 11

Scheme 12

Scheme 12
  1. Turn the ignition switch ON (II).
  2. Check BRAKE FLUID PRESSURE SENSOR A with the HDS without pressing the brake pedal. Is there 2.45 MPa or more? YES - Go to step 3. NO - The system is OK at this time. Check for poor connections or loose terminals at brake fluid pressure sensor A and the ECM.
  3. Turn the ignition switch OFF.
  4. Disconnect the brake fluid pressure sensor A 3P connector.
  5. Turn the ignition switch ON (II).
  6. Measure voltage between brake fluid pressure sensor A 3P connector terminals No. 1 and No. 2. Is there about 5.0 V? YES - Replace brake fluid pressure sensor A (see «BRAKE FLUID PRESSURE SENSOR REPLACEMENT»(ref-219308-S29106053842006021300000) ). NO - Go to step 7.
  7. Turn the ignition switch OFF, and wait for 10 seconds.
  8. Disconnect ECM connector C (31P).
  9. Connect ECM connector terminal C18 to body ground with a jumper wire.
  10. Check for continuity between brake fluid pressure sensor A 3P connector terminal No. 1 and body ground. Is there continuity? YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Repair open in the wire between brake fluid pressure sensor A and the ECM (C18).

DTC P15B4: Brake Fluid Pressure Sensor B Circuit Low Voltage (2005-2006 M/T models)

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

Scheme 13

Scheme 13: DTC P15B4: Brake Fluid Pressure Sensor B Circuit Low Voltage (2005-2006 M/T models)

Scheme 14

Scheme 14

Scheme 15

Scheme 15

Scheme 16

Scheme 16

Scheme 17

Scheme 17

Scheme 18

Scheme 18

Scheme 19

Scheme 19
  1. Turn the ignition switch ON (II).
  2. Check BRAKE FLUID PRESSURE SENSOR B with the HDS. Is there 0.08 V or less? YES - Go to step 3. NO - The system is OK at this time. Check for poor connections or loose terminals at brake fluid pressure sensor B and the ECM.
  3. Turn the ignition switch OFF.
  4. Disconnect the brake fluid pressure sensor B 3P connector.
  5. Turn the ignition switch ON (II).
  6. Measure voltage between brake fluid pressure sensor B 3P connector terminals No. 1 and No. 2. Is there about 5.0 V? YES - Go to step 11 . NO - Go to step 7.
  7. Turn the ignition switch OFF, and wait for 10 seconds.
  8. Disconnect ECM connector C (31P).
  9. Connect ECM connector terminal C23 to body ground with a jumper wire.
  10. Check for continuity between brake fluid pressure sensor B 3P connector terminal No. 2 and body ground. Is there continuity? YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Repair open in the wire between the ECM (C23) and brake fluid pressure sensor B.
  11. Turn the ignition switch OFF, and wait for 10 seconds.
  12. Disconnect ECM connector A (32P).
  13. Check for continuity between brake fluid pressure sensor B 3P connector terminal No. 3 and body ground. Is there continuity? YES - Repair short to ground between the ECM (A14) and brake fluid pressure sensor B. NO - Go to step 14.
  14. Connect ECM connector terminals A22 to body ground with a jumper wire.
  15. Check for continuity between brake fluid pressure sensor B 3P connector terminal No. 3 and body ground. Is there continuity? YES - Go to step 16. NO - Repair open in the wire between the ECM (A22) and brake fluid pressure sensor B.
  16. Connect ECM connector A (32P).
  17. Connect brake fluid pressure sensor B 3P connector terminals No. 2 and No. 3 with a jumper wire.
  18. Turn the ignition switch ON (II).
  19. Check BRAKE FLUID PRESSURE SENSOR B with the HDS. Is there 0.08 V or less? YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Replace brake fluid pressure sensor B (see «BRAKE FLUID PRESSURE SENSOR REPLACEMENT»(ref-219308-S29106053842006021300000) ).

DTC P15B5: Brake Fluid Pressure Sensor B Range Performance Problem (2005-2006 M/T models)

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

Scheme 20

Scheme 20: DTC P15B5: Brake Fluid Pressure Sensor B Range Performance Problem (2005-2006 M/T models)

Scheme 21

Scheme 21

Scheme 22

Scheme 22
  1. Turn the ignition switch ON (II).
  2. Check BRAKE FLUID PRESSURE SENSOR B with the HDS without pressing the brake pedal. Is there 2.45 MPa or more? YES - Go to step 3. NO - The system is OK at this time. Check for poor connections or loose terminals at brake fluid pressure sensor B and the ECM.
  3. Turn the ignition switch OFF.
  4. Disconnect the brake fluid pressure sensor B 3P connector.
  5. Turn the ignition switch ON (II).
  6. Measure voltage between brake fluid pressure sensor B 3P connector terminals No. 1 and No. 2. Is there about 5.0 V? YES - Replace brake fluid pressure sensor B (see «BRAKE FLUID PRESSURE SENSOR REPLACEMENT»(ref-219308-S29106053842006021300000) ). NO - Go to step 7.
  7. Turn the ignition switch OFF, and wait for 10 seconds.
  8. Disconnect ECM connector C (31P).
  9. Connect ECM connector terminal C2 to body ground with a jumper wire.
  10. Check for continuity between brake fluid pressure sensor B 3P connector terminal No. 1 and body ground. Is there continuity? YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Repair open in the wire between brake fluid pressure sensor B and the ECM (C2).

DTC P15B6: Brake Fluid Pressure Sensor A/B Circuit Malfunction (2005-2006 M/T models)

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

Scheme 23

Scheme 23: DTC P15B6: Brake Fluid Pressure Sensor A/B Circuit Malfunction (2005-2006 M/T models)

Scheme 24

Scheme 24

Scheme 25

Scheme 25

Scheme 26

Scheme 26
  1. Turn the ignition switch ON (II).
  2. Check BRAKE FLUID PRESSURE SENSOR B with the HDS without pressing the brake pedal. Is there between 0.26 V and 0.74 V? YES - Go to step 11 . NO - Go to step 3.
  3. Turn the ignition switch OFF.
  4. Change connectors between brake fluid pressure sensor A and B.
  5. Turn the ignition switch ON (II).
  6. Check BRAKE FLUID PRESSURE SENSOR B with the HDS without pressing the brake pedal. Is there between 0.26 V and 0.74 V? YES - Go to step 7. NO - Replace brake fluid pressure sensor A (see «BRAKE FLUID PRESSURE SENSOR REPLACEMENT»(ref-219308-S29106053842006021300000) ).
  7. Turn the ignition switch OFF, and wait for 10 seconds.
  8. Disconnect ECM connector C (31P).
  9. Connect ECM connector terminal C18 to body ground with a jumper wire.
  10. Check for continuity between brake fluid pressure sensor A 3P connector terminal No. 1 and body ground. Is there continuity? YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Repair open in the wire between brake fluid pressure sensor A and the ECM (C18).
  11. Check BRAKE FLUID PRESSURE SENSOR B with the HDS without pressing the brake pedal. Is there between 0.26 V and 0.74 V? YES - Go to step 12. NO - Go to step 17 .
  12. Clear the DTC with the HDS.
  13. Start the engine.
  14. Test-drive the vehicle twice at 3 mph (5 km/h) or more with the throttle position at 9 degrees, or more.
  15. Stop the vehicle, press the brake pedal, and hold it 10 seconds.
  16. Check for Temporary DTCs or DTCs with the HDS. Is DTC P15B6 indicated? YES - Replace brake fluid pressure sensor A and B (see «BRAKE FLUID PRESSURE SENSOR REPLACEMENT»(ref-219308-S29106053842006021300000) ). NO - The system is OK at this time. If any other Temporary DTCs or DTCs are indicated, go to the indicated «DTC TROUBLESHOOTING»(ref-219289-S32747860742006021300000)
  17. Turn the ignition switch OFF.
  18. Change connectors between brake fluid pressure sensor A and B.
  19. Turn the ignition switch ON (II).
  20. Check the PBRKS1 with the HDS without pressing the brake pedal. Is there between 0.26 V and 0.74 V? YES - Go to step 21. NO -Replace brake fluid pressure sensor B (see .
  21. Turn the ignition switch OFF, and wait for 10 seconds.
  22. Disconnect ECM connector C (31P).
  23. Connect ECM connector terminal C2 to body ground with a jumper wire.
  24. Check for continuity between brake fluid pressure sensor B 3P connector terminal No. 1 and body ground. Is there continuity? YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Repair open in the wire between brake fluid pressure sensor B and the ECM (C2).

DLC Circuit Troubleshooting

  1. If the ECM does not communicate with the HDS, do this troubleshooting procedure.
  2. Check that the MIL circuit is normal, then do this troubleshooting.

Scheme 27

Scheme 27

Scheme 28

Scheme 28

Scheme 29

Scheme 29

Scheme 30

Scheme 30

Scheme 31

Scheme 31

Scheme 32

Scheme 32

Scheme 33

Scheme 33
  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. 18 (7.5 A) 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 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, and wait for 10 seconds.
  7. Disconnect ECM connector A (32P).
  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 (A21). After repairing the wire, check the DTC with the HDS, and go to the indicated «DTC TROUBLESHOOTING»(ref-219289-S32747860742006021300000) . NO - Go to step 9.
  9. Check for continuity between DLC terminal No. 7 and ECM terminal A21. Is there continuity? YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM; 2000-2001 M/T models (see «HOW TO SUBSTITUTE THE ECM FOR TESTING PURPOSES (2000-2001 M/T MODELS)»(ref-219288-S30600414382006021300000) ), 2002-2006 M/T models and CVT model (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Repair open in the wire between DLC terminal No. 7 and the ECM (A21). After repairing the wire, check the DTC with the HDS, and go to the indicated «DTC TROUBLESHOOTING»(ref-219289-S32747860742006021300000) .
  10. Turn the ignition switch OFF, and wait for 10 seconds.
  11. Disconnect ECM connector A (32P).
  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; 2000-2001 M/T models (see «HOW TO SUBSTITUTE THE ECM FOR TESTING PURPOSES (2000-2001 M/T MODELS)»(ref-219288-S30600414382006021300000) ), 2002-2006 M/T models and CVT model (see «ECM UPDATING AND SUBSTITUTION FOR TESTING-2002-2006 M/T MODELS AND CVT MODEL»(ref-219288-S14477746672006021300000) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see «ECM REPLACEMENT»(ref-219289-S04050852982006021300000) ). NO - Repair short to power in the wire between DLC terminal No. 7 and the ECM (A21). After repairing the wire, check for DTCs with the HDS, and go to the indicated «DTC TROUBLESHOOTING»(ref-219289-S32747860742006021300000) .

Scheme 34

Scheme 34: Injector Replacement

Scheme 35

Scheme 35
  1. Relieve the fuel pressure; 2000-2003 models (see «2000-2003 MODELS»(ref-219291-S33599267952006021300000) ), 2004-2005 models (see «2004-2005 MODELS»(ref-219291-S34051017262006021300000) ), 2006 model (see «2006 MODEL»(ref-219291-S02504349562006021300000) ).
  2. Remove the fuel rail cover (A), then disconnect the connectors from the fuel injectors (B).
  3. 2000-2005 M/T models: Disconnect the vacuum hose and fuel return hose from the fuel pressure regulator (C). Place a rag or shop towel over the hoses before disconnecting them.
  4. CVT model, 2006 M/T model: Disconnect the vacuum hose from the fuel pulsation damper (D).
  5. Remove the retainer nuts (E).
  6. 2000-2004 models: Disconnect the PCV valve (F).
  7. 2005-2006 models: Disconnect the PCV hose (G).
  8. Disconnect the fuel rail.
  9. Remove the fuel injectors from the cylinder head (H).
  10. Slide new cushion rings (A) onto the fuel injectors (B).
  11. Coat new O-rings (C) with clean engine oil, and put them on the fuel injectors.
  12. Insert the fuel injectors into the fuel rail (D).
  13. Coat new seal rings (E) with clean engine oil, and press them into the cylinder head.
  14. Install the fuel injectors into the cylinder head.
  15. Install and tighten the retainer nuts.
  16. 2000-2005 models: Connect the fuel hose to the fuel rail with new washers.
  17. 2000-2005 M/T models: Connect the vacuum hoses and fuel return hose to the fuel pressure regulator (F).
  18. CVT model, 2006 M/T model: Connect the vacuum hose to the fuel pulsation damper (G).
  19. 2005-2006 models: Connect the PCV tube.
  20. 2000-2004 models: Connect the PCV valve.
  21. 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.