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'08 model

NOTE: Make sure the HDS and the DLC cable of the HDS is normal.
  1. Turn the ignition switch OFF.
  2. Connect the HDS to the DLC (see GENERAL TROUBLESHOOTING INFORMATION ).
    NOTE: Make sure the HDS is properly connected to the DLC.
  3. Turn the ignition switch 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 Temporary DTCs or DTCs in the PGM-FI system with the HDS.

    Are any Temporary DTCs or DTCs indicated? 

    YES  - Go to the indicated DTCs troubleshooting

    NO  - Go to step 5.

  5. Turn the ignition switch OFF.
  6. Turn the ignition switch ON (II), and watch the SRS indicator.

    Does the SRS indicator stay on? 

    YES  - Go to the SRS system's general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION )

    NO  - Go to step 7.

  7. Turn the ignition switch OFF.
  8. Turn the ignition switch ON (II), and watch the VSA indicator.

    Does the VSA indicator stay on? 

    YES  - Go to the VSA system's general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION )

    NO  - Go to step 9.

  9. Turn the ignition switch OFF.
  10. Turn the ignition switch ON (II), and watch the immobilizer indicator.

    Does the immobilizer indicator stay on or flash? 

    YES  - Go to the immobilizer system's troubleshooting (see SYMPTOM TROUBLESHOOTING )

    NO  - Go to step 11.

  11. Turn the ignition switch OFF.
  12. Turn the ignition switch ON (II), and watch the SH-AWD indicator.

    Does the SH-AWD indicator stay on? 

    YES  - Go to the SH-AWD system's general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION )

    NO  - Go to step 13.

  13. Do the gauge self-diagnostic function (see SELF-DIAGNOSTIC FUNCTION ) to make sure the gauge is known-good. If the function test is OK, go to step 14.
  14. Check for B-CAN system DTCs without the HDS (see GENERAL TROUBLESHOOTING INFORMATION ).

    Are any B-CAN DTCs indicated? 

    YES  - Go to the indicated DTCs troubleshooting

    NO  - Go to step 15.

  15. Turn the ignition switch OFF.
  16. Disconnect the HDS from the DLC.
  17. Check for continuity between DLC terminal No. 7 and body ground.
    Fig 1: Checking Continuity Between DLC Terminal No. 7 And Body Ground
    G05494477Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there 5 Ω or less? 

    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 parts, one at a time:
    • SRS unit connector A (28P)
    • VSA modulator-control unit 46P connector
    • SH-AWD control unit connector A (26P)
    • TPMS control unit connector B (20P)
    • MICU connector P (30P)
    • ACC unit 20P connector

    Does continuity go away when one of the above components is disconnected? 

    YES  - Replace the part that caused an open when it was disconnected

    NO  - Repair short in the wire between the DLC (K-line) and the VSA modulator-control unit, the SH-AWD control unit, the TPMS control unit, or the ACC unit

  19. Connect DLC terminal No. 7 to body ground with a jumper wire.
    Fig 2: Connecting DLC Terminal No. 7 To Body Ground With Jumper Wire
    G05494478Courtesy of AMERICAN HONDA MOTOR CO., INC.
  20. Check for continuity between body ground and these connector terminals:
    CONNECTOR TERMINAL REFERENCE

    Connector Terminal
    SRS unit A (28P) No. 24 (RED)
    VSA modulator-control unit 46P No. 11 (LTBLU)
    SH-AWD control unit A (26P) No. 15(LTBLU)
    TPMS control unit B (20P) No. 9 (LTBLU)
    MICU 30P No. 6 (RED)
    ACC unit 20P No. 8 (RED)

    Is there continuity between the DLC terminal and each of the terminals in the chart? 

    YES  - Replace the unit that does not communicate with the HDS

    NO  - Repair open in the wire between the DLC (K-line) and the appropriate connector

  21. Do the gauge self-diagnostic function (see SELF-DIAGNOSTIC FUNCTION ) to make sure the gauge is known-good. If the function test is OK, go to step 22.
  22. Check for B-CAN system DTCs without the HDS (see GENERAL TROUBLESHOOTING INFORMATION ).

    Is DTC B1168, B1169, and/or B1178 indicated? 

    YES  - Go to step  35.

    NO  - Go to step 23.

  23. Turn the ignition switch OFF.
  24. Disconnect the HDS from the DLC.
  25. Measure voltage between DLC terminal No. 16 and body ground.
    Fig 3: Measuring Voltage Between DLC Terminal No. 16 And Body Ground
    G05494479Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  - Go to step 26.

    NO  - Repair open in the wire between DLC terminal No. 16 and the No. 8 Fl ECU (PCM) (15A) fuse in the under-hood fuse/relay box

  26. Measure voltage between DLC terminals No. 4 and No. 16.
    Fig 4: Measuring Voltage Between DLC Terminals No. 4 And No. 16
    G05494480Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  - Go to step 27.

    NO  - Repair open in the wire between DLC terminal No. 4 and G501

  27. Connect the HDS to the DLC (see GENERAL TROUBLESHOOTING INFORMATION ).
  28. Jump the SCS line with the HDS.
  29. Disconnect PCM connector E (31P).
  30. Disconnect the HDS from the DLC.
  31. Connect DLC terminal No. 6 to body ground with a jumper wire.
    Fig 5: Connecting DLC Terminal No. 6 To Body Ground With Jumper Wire
    G05494481Courtesy of AMERICAN HONDA MOTOR CO., INC.
  32. Check for continuity between PCM connector terminal E15 and body ground.
    Fig 6: Checking Continuity Between PCM Connector Terminal E15 And Body Ground
    G05494482Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 33.

    NO  - Repair open in the wire between the PCM (E15) and DLC terminal No. 6

  33. Connect DLC terminal No. 14 to body ground with a jumper wire.
    Fig 7: Connecting DLC Terminal No. 14 To Body Ground With Jumper Wire
    G05494483Courtesy of AMERICAN HONDA MOTOR CO., INC.
  34. Check for continuity between PCM connector terminal E26 and body ground.
    Fig 8: Checking Continuity Between PCM Connector Terminal E26 And Body Ground
    G05494484Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Update the PCM if it does not have the latest software (see UPDATING THE PCM ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ), then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT  )

    NO  - Repair open in the wire between the PCM (E26)and DLC terminal No. 14

  35. Try to start the engine.

    Does the engine start and idle smoothly? 

    YES  - Go to F-CAN CIRCUIT TROUBLESHOOTING 

    NO  - Go to step 36.

  36. Turn the ignition switch OFF.
  37. Check the No. 23 +B IG MAIN (50A) fuse in the under-hood fuse box.

    Is the fuse OK? 

    YES  - Repair open in the wire between the No. 23 +B IG MAIN (50A) fuse and the ignition switch. If the wire is OK, go to step 38.

    NO  - Repair short in the wire between the No. 23 +B IG MAIN (50A) fuse and the under-hood fuse box. Also replace the No. 23 +B IG MAIN (50A) fuse

  38. Inspect the No. 23 IGP (7.5A) fuse in the driver's under-hood fuse/relay box.

    Is the fuse OK? 

    YES  - Go to step  44.

    NO  - Go to step 39.

  39. Remove the blown No. 23 IGP (7.5A) fuse from the driver's under-hood fuse/relay box.
  40. Jump the SCS line with the HDS.
  41. Disconnect PCM connector A (31P).
  42. Check for continuity between PCM connector terminal A4 and body ground.
    Fig 9: Checking Continuity Between PCM Connector Terminal A4 And Body Ground
    G05494485Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 43.

    NO  - Update the PCM if it does not have the latest software (see UPDATING THE PCM ), or substitute a known-good PCM (see HOW TO TROUBLESHOOT CIRCUITS AT THE PCM CONNECTORS ), then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT  ). Also replace the No. 23 IGP (7.5A) fuse in the driver's under-hood fuse/relay box

  43. Disconnect each of the components or connectors below, one at a time, and check for continuity between PCM connector terminal A4 and body ground.
    • Each injector 2P connector
    • Camshaft position (CMP) sensor 3P connector
    • Crankshaft position (CKP) sensor 6P connector
    • Driver's under-dash fuse/relay box 39P connector

    Does continuity go away when one of the above components is disconnected? 

    YES  - Replace the component that made the short to body ground go away when disconnected. If the item is the PCM, update the PCM if it does not have the latest software (see SUBSTITUTING THE PCM ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ), then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT  ). Also replace the No. 23 IGP (7.5A) fuse

    NO  - Repair short in the wire between the PCM (A4) and the injector, the CMP sensor, the CKP sensor, or the driver's under-dash fuse/relay box. Also replace the No. 23 IGP (7.5A) fuse in the driver's under-hood fuse/relay box

  44. Inspect the No. 19 FUEL PUMP (20A) fuse in the driver's under-dash fuse/relay box.

    Is the fuse OK? 

    YES  - Go to step  51.

    NO  - Go to step 45.

  45. Remove the blown No. 19 FUEL PUMP (20A) fuse in the driver's under-dash fuse/relay box.
  46. Jump the SCS line with the HDS.
  47. Disconnect PCM connector B (49P).
  48. Check for continuity between PCM connector terminal D6 and body ground.
    Fig 10: Checking Continuity Between PCM Connector Terminal D6 And Body Ground
    G05494486Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 49.

    NO  - Replace the No. 19 FUEL PUMP (20A) fuse in the driver's under-dash fuse/relay box, and update the PCM if it does not have the latest software (see UPDATING THE PCM ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ), then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT  )

  49. Remove PGM-FI main relay 2 (A) from the driver's under-dash fuse/relay box.
    Fig 11: Identifying PGM-FI Main Relay
    G05494487Courtesy of AMERICAN HONDA MOTOR CO., INC.
  50. Check for continuity between PCM connector terminal D6 and body ground.
    Fig 12: Checking Continuity Between PCM Connector Terminal D6 And Body Ground
    G05494488Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Repair short in the wire between the No. 19 FUEL PUMP (20A) fuse and the PCM (D6), between the No. 19 FUEL PUMP (20A) fuse and PGM-FI main relay 2, or between the No. 21 METER (10A) fuse and the imoes unit. Also replace the No. 19 FUEL PUMP (20A) fuse in the driver's under-dash fuse/relay box

    NO  - Go to step 51.

  51. Jump the SCS line with the HDS.
  52. Disconnect PCM connectors D (17P) and E (31P).
  53. Turn the ignition switch ON (II).
  54. Measure voltage between PCM connector terminal D6 and body ground.
    Fig 13: Measuring Voltage Between PCM Connector Terminal D6 And Body Ground
    G05494489Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  - Go to step 55.

    NO  - Repair open in the wire between the No. 19 FUEL PUMP (20A) fuse and the PCM (D6)

  55. Measure voltage between PCM connector terminal E5 and body ground.
    Fig 14: Measuring Voltage Between PCM Connector Terminal E5 And Body Ground
    G05494490Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  - Go to step  59.

    NO  - Go to step 56.

  56. Turn the ignition switch OFF.
  57. Disconnect the driver's under-dash fuse/relay box 39P connector.
  58. Check for continuity between PCM connector terminal E5 and driver's under-dash fuse/relay box 39P connector terminal No. 1.
    Fig 15: Checking Continuity Between PCM Connector Terminal E5 And Driver's Under-Dash Fuse/Relay Box 39P Terminal 1
    G05494491Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -

    • Replace the driver's under-dash fuse/relay box.
    • Update the PCM if it does not have the latest software (see UPDATING THE PCM ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ), then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT  ).

    NO  - Repair open in the wire between the PCM (E5) and the driver's under-dash fuse/relay box

  59. Turn the ignition switch OFF.
  60. Disconnect the driver's under-dash fuse/relay box 39 P connector.
  61. Check for continuity between PCM connector terminal A4 and driver's under-dash fuse/relay box 39P connector terminal No. 31.
    Fig 16: Checking Continuity Between PCM Connector Terminal A4 And Driver's Under-Dash Fuse/Relay Box 39P Terminal 31
    G05494492Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 62.

    NO  - Repair open in the wire between the PCM (A4) and the driver's under-dash fuse/relay box.

  62. Test PGM-FI main relay 1 in the driver's under-dash fuse/relay box (see POWER RELAY TEST ).

    Is PGM-FI main relay 1 OK? 

    YES  - Go to step 63.

    NO  - Replace PGM-FI main relay 1.1

  63. Disconnect PCM connector B (24P).
  64. Check for continuity between body ground and PCM connector terminals A1, A2, A3, and B15 individually.
    Fig 17: Checking Continuity Between Body Ground And PCM Connector Terminals A1, A2, A3, And B15
    G05494493Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 65.

    NO  - Repair open in the wire between the PCM (A1, A2, A3, B15) and G101

  65. Disconnect PCM connector C (22P).
  66. Check for continuity between PCM connector terminal C6 and body ground.
    Fig 18: Checking Continuity Between PCM Connector Terminal C6 And Body Ground
    G05494494Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 67.

    NO  - Go to step  68.

  67. Continue to check for continuity between PCM connector terminal C6 and body ground, while disconnecting these parts, one at a time:
    • MAP sensor 3P connector
    • Output shaft (countershaft) speed sensor 3P connector

    Does continuity go away when one of the above components is disconnected? 

    YES  - Replace the part that caused an open when it was disconnected

    NO  - Repair short in the wire between the PCM (C6) and the MAP sensor, the output shaft (countershaft) speed sensor

  68. Check for continuity between PCM connector terminal C14 and body ground.
    Fig 19: Checking Continuity Between PCM Connector Terminal C14 And Body Ground
    G05494495Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 69.

    NO  - Go to step  70.

  69. Continue to check for continuity between PCM connector terminal C14 and body ground, while disconnecting these parts, one at a time:
    • EGR valve 6P connector
    • Input shaft (mainshaft) speed sensor 3P connector
    • IMT actuator 5P connector

    Does continuity go away when one of the above components is disconnected ? 

    YES  - Replace the part that caused an open when it was disconnected

    NO  - Repair short in the wire between the PCM (C14) and the EGR valve, the input shaft (mainshaft) speed sensor, or the IMT actuator

  70. Check for continuity between PCM connector terminal D2 and body ground.
    Fig 20: Checking Continuity Between PCM Connector Terminal D2 And Body Ground
    G05494496Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 71.

    NO  - Go to step  72.

  71. Continue to check for continuity between PCM connector terminal D2 and body ground, while disconnecting the APP sensor 6P connector.

    Is there continuity? 

    YES  - Repair short in the wire between the PCM (D2) and APP sensor A

    NO  - Replace the accelerator pedal module (see ACCELERATOR PEDAL MODULE REMOVAL/INSTALLATION )

  72. Check for continuity between PCM connector terminal E12 and body ground.
    Fig 21: Checking Continuity Between PCM Connector Terminal E12 And Body Ground
    G05494497Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 73.

    NO  - Update the PCM if it does not have the latest software (see UPDATING THE PCM ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ), then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT  )

  73. Continue to check for continuity between PCM connector terminal E12 and body ground, while disconnecting these connectors one at a time.
    • APP sensor 6P connector
    • FTP sensor 3P connector

    Does continuity go away when one of the above components is disconnected? 

    YES  - Replace the part that caused an open when it was disconnected

    NO  - Repair short in the wire between the PCM (E12) and the APP sensor B or the FTP sensor

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