Acura TSX / Honda Accord CL. Manual — part 605

Fig. 59: DTC/Terminal Identification Table

56. Check for continuity between body ground and the appropriate ECM/PCM connector terminal (see Fig.

60 and Fig. 61 ).

Is there continuity?

YES: Go to step 57.

NO: Repair open in the wire between the ECM/PCM and the injector, then go to step 63 .

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX

Fig. 60: Checking For Continuity Between Body Ground & The Appropriate ECM/PCM
Connector Terminals

Fig. 61: DTC/Terminal Identification Table

57. Measure resistance between injector 2P connector terminals No. 1 and No. 2.

Is there 10-13 ohm?

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX

YES: Go to step 58.

NO: Replace the injector (see INJECTOR REPLACEMENT ), then go to step 63 .

Fig. 62: Measuring Resistance Between Injector 2P Connector Terminals No. 1 & No. 2

58. Substitute a known-good injector from another cylinder to the problem cylinder.

59. Reconnect ECM/PCM connector B (24P).

60. Start the engine, and let it idle for 2 minutes.

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX

61. Test-drive the vehicle for several minutes in the range of the recorded freeze data.

62. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3 MISFIRE, and/or CYL4 MISFIRE in the DATA

LIST for 10 minutes with the HDS.

Does CYL1 MISFIRE, CYL2 MISFIRE, CYL3 MISFIRE, and/or CYL4 MISFIRE show
misfire counts?

YES: Go to step 71 .

NO: Replace the original injector (see INJECTOR REPLACEMENT ), then go to step 63.

63. Turn the ignition switch ON (II).

64. Reset the ECM/PCM with the HDS.

65. Clear the CKP pattern with the HDS.

66. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).

67. Do the CKP pattern learn procedure (see CKP PATTERN CLEAR/CKP PATTERN LEARN

PROCEDURE ).

68. Test-drive the vehicle for several minutes in the range of the recorded freeze data.

69. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES: If DTC P0301, P0302, P0303, or P0304 are indicated, check for poor connections or
loose terminals at the ignition coil, the injector, and the ECM/PCM, then go to
troubleshooting DTC P0300, P0301, P0302, P0303, or P0304 (see

DTC P0300: RANDOM

MISFIRE AND ANY COMBINATION OF THE FOLLOWING: DTC P0301: NO. 1
CYLINDER MISFIRE; DTC P0302: NO. 2 CYLINDER MISFIRE; DTC P0303: NO. 3
CYLINDER MISFIRE; DTC P0304: NO. 4 CYLINDER MISFIRE

). If any other

Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting.

NO: Go to step 70.

70. Monitor the OBD STATUS for DTC P0301, P0302, P0303, or P0304 in the DTCs MENU with the HDS.

Does the screen indicate PASSED?

YES: Troubleshooting is complete.

NO: If the screen indicates FAILED, go to step 1 and recheck. If the screen indicates
EXECUTING, keep driving until a result comes on. If the screen indicates Out of
CONDITION, go to step 68 and recheck.

71. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see

HOW TO SUBSTITUTE THE ECM/PCM ).

72. Test-drive the vehicle for several minutes in the range of the recorded freeze data.

73. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES: If DTC P0301, P0302, P0303, or P0304 are indicated, check for poor connections or
loose terminals at the injector, the ignition coil, and the ECM/PCM, then go to step 1 . If any
other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting.

NO: If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was
substituted, replace the original ECM/PCM (see HOW TO REMOVE THE ECM/PCM
FOR TESTING ).

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX