Acura RSX Honda Integra. Manual — part 140

１３

１４

１５

１６

−

−

−

−

−

−

YES

NO

YES

NO

YES

NO

11-266

PGM-FI System

MIL Circuit Troubleshooting (cont’d)

FUEL PUMP 5P CONNECTOR

FUEL PUMP
(YEL/BLU)

ECM/PCM CONNECTOR E (31P)

IG1
(YEL/BLK)

ECM/PCM CONNECTOR E (31P)

MRLY (RED/YEL)

A

47. Check for continuity between fuel pump 5P

connector terminal No. 5 and body ground.

Replace PGM-FI main relay 2 (FUEL PUMP).

Also replace the No. 17 FUEL PUMP (15 A) fuse.

Check the fuel pump, and replace it if

necessary. Also replace the No. 17 FUEL PUMP
(15 A) fuse.

48. Jump the SCS line with the HDS.

49. Disconnect ECM/PCM connector E (31P).

50. Turn the ignition switch ON (II).

51. Measure voltage between ECM/PCM connector

terminals E9 and body ground.

Go to step 52.

Repair open in the wire between the No. 17

FUEL PUMP (15 A) fuse and the ECM/PCM (E9).

52. Turn the ignition switch OFF.

53. Measure voltage between ECM/PCM connector

terminal E7 and body ground.

Go to step 57.

Go to step 54.

54. Remove the glove box (see page 20-67), then

remove PGM-FI main relay 1 (FI MAIN) (A).

Wire side of female terminals

Wire side of female terminals

Wire side of female terminals

Is ther e continuity?

Is ther e batter y voltage?

Is ther e batter y voltage?

05/06/27 17:38:39 61S6M040_110_0266

１７

１８

１９

２０

＋

−

−

−

−

−

−

YES

NO

YES

NO

YES

NO

11-267

PGM-FI MAIN RELAY 1
(FI MAIN)
4P CONNECTOR

B

(WHT/
BLK)

PGM-FI MAIN RELAY 1
(FI MAIN)
4P CONNECTOR

ECM/PCM CONNECTOR
E (31P)

MRLY
(RED/
YEL)

MRLY (RED/YEL)

IGP2
(YEL/BLK)

ECM/PCM CONNECTOR A (31P)

IGP1
(YEL/BLK)

A

55. Measure voltage between PGM-FI main relay 1 (FI

MAIN) 4P connector terminal No. 4 and body
ground.

Go to step 56.

Repair open in the wire between the No. 6

ECU (ECM/PCM) (20 A) fuse and PGM-FI main
relay 1 (FI MAIN).

56. Check for continuity between PGM-FI main relay 1

(FI MAIN) 4P connector terminal No. 3 and ECM/
PCM connector terminal E7.

Test PGM-FI main relay 1 (FI MAIN)

(see page 22-62). If the relay is OK, update the ECM/
PCM if it does not have the latest software, or
substitute a known-good ECM/PCM (see page 11-6),
then recheck. If the symptom/indication goes away
with a known-good ECM/PCM, replace the original
ECM/PCM (see page 11-284).

Repair open in the wire between PGM-FI main

relay 1 (FI MAIN) and the ECM/PCM (E7).

57. Reconnect ECM/PCM connector E (31P).

58. Turn the ignition switch ON (II).

59. Measure voltage between body ground and

ECM/PCM connector terminals A2 and A3
individually.

Go to step 66.

Go to step 60.

60. Turn the ignition switch OFF.

61. Remove the glove box (see page 20-67), then

remove PGM-FI main relay 1 (FI MAIN) (A).

(cont’d)

Wire side of female terminals

Wire side of
female terminals

Wire side of
female terminals

Wire side of female terminals

Is ther e batter y voltage?

Is ther e continuity?

Is ther e batter y voltage?

05/06/27 17:38:39 61S6M040_110_0267

２１

２２

２３

２４

＋

−

−

−

−

−

−

−

−

YES

NO

YES

NO

YES

NO

YES

NO

11-268

PGM-FI System

MIL Circuit Troubleshooting (cont’d)

PGM-FI MAIN RELAY 1
(FI MAIN)
4P CONNECTOR

B

(WHT/BLK)

PGM-FI MAIN RELAY 1 (FI MAIN)
4P CONNECTOR

ECM/PCM CONNECTOR
A (31P)

IGP1 (YEL/BLK)

IGP1 (YEL/BLK)

IGP2 (YEL/BLK)

ECM/PCM CONNECTOR A (31P)

PG2 (BLK)

PG1 (BLK)

LG1
(BRN/YEL)

LG2 (BRN/YEL)

VCC1
(YEL/RED)

ECM/PCM CONNECTOR A (31P)

62. Turn the ignition switch ON (II).

63. Measure voltage between PGM-FI main relay 1

(FI MAIN) 4P connector terminal No. 2 and body
ground.

Go to step 64.

Repair open in the wire between the No. 6

ECU (ECM/PCM) (20 A) fuse and PGM-FI main relay
1 (FI MAIN).

64. Turn the ignition switch OFF.

65. Check for continuity between PGM-FI main relay 1

(FI MAIN) 4P connector terminal No. 1 and ECM/
PCM connector terminals A2 and A3 individually.

Replace PGM-FI main relay 1 (FI MAIN).

Repair open in the wire between PGM-FI main

relay 1 (FI MAIN) and the ECM/PCM (A2, A3).

66. Measure voltage between body ground and ECM/

PCM connector terminals A4, A5, A8 and A9
individually.

Repair open in the wire(s) between that had

more than 1.0 V between G101 and the ECM/PCM
(A4, A5, A8, A9).

Go to step 67.

67. Turn the ignition switch ON (II).

68. Measure voltage between body ground and ECM/

PCM connector terminal A21.

Go to step 75.

Go to step 69.

Wire side of female terminals

Wire side of
female terminals

Wire side of
female terminals

Wire side of female terminals

Wire side of female terminals

Is ther e batter y voltage?

Is ther e continuity?

Is ther e less than 1.0 V ?

Is ther e about 5 V ?

05/06/27 17:38:40 61S6M040_110_0268

２５

２６

−

−

−

−

YES

NO

YES

NO

11-269

VCC1
(YEL/RED)

ECM/PCM CONNECTOR A (31P)

VCC1
(YEL/RED)

ECM/PCM CONNECTOR A (31P)

69. Disconnect the connector from each of these

sensors, one at a time, and measure voltage
between body ground and ECM/PCM connector
terminal A21 with the ignition switch ON (II).

• Manifold absolute pressure (MAP) sensor
• Intake manifold tuning (IMT) (intake manifold

runner control (IMRC)) valve

• Output shaft (countershaft) speed sensor

Replace the sensor that restored 5 V when

disconnected.

Go to step 70.

70. Turn the ignition switch OFF.

71. Jump the SCS line with the HDS.

72. Disconnect the connectors from the these sensors:

• Manifold absolute pressure (MAP) sensor
• Intake manifold tuning (IMT) (intake manifold

runner control (IMRC)) valve

• Output shaft (countershaft) speed sensor

73. Disconnect ECM/PCM connector A (31P).

74. Check for continuity between ECM/PCM connector

terminal A21 and body ground.

Repair short in the wire between the ECM/

PCM (A21) and the MAP sensor, IMT (IMRC) valve
or the output shaft (countershaft) speed sensor.

Update the ECM/PCM if it does not have the

latest software, or substitute a known-good ECM/
PCM (see page 11-6), then recheck. If the symptom/
indication goes away with a known-good ECM/PCM,
replace the original ECM/PCM (see page 11-284).

(cont’d)

Wire side of female terminals

Wire side of female terminals

Is ther e about 5 V ?

Is ther e continuity?

05/06/27 17:38:40 61S6M040_110_0269