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Acura RSX Honda Integra. Manual - part 138

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YES

11-258

PGM-FI System

MIL Circuit Troubleshooting (cont’d)

ECM/PCM CONNECTOR A (31P)

VCC2
(YEL/BLU)

ECM/PCM CONNECTOR E (31P)

VCC3
(YEL/BLU)

ECM/PCM CONNECTOR E (31P)

VCC3
(YEL/BLU)

65. Check for continuity between ECM/PCM connector

terminal A20 and body ground.

Repair short in the wire between the ECM/

PCM (A20) and the TP sensor or input shaft
(mainshaft) speed sensor (A/T).

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).

66. Measure voltage between body ground and ECM/

PCM connector terminal E5.

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).

Go to step 67.

67. Turn the ignition switch OFF.

68. Disconnect the fuel tank pressure (FTP) sensor 3P

connector.

69. Turn the ignition switch ON (II).

70. Measure voltage between body ground and ECM/

PCM connector terminal E5.

Replace the FTP sensor (see page 11-473).

Go to step 71.

71. Turn the ignition switch OFF.

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

Wire side of female terminals

Is ther e continuity?

Is ther e about 5 V ?

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YES

11-259

ECM/PCM CONNECTOR E (31P)

VCC3
(YEL/BLU)

ECM/PCM CONNECTOR E (31P)

SCS (BRN)

ECM/PCM CONNECTOR E (31P)

SCS (BRN)

73. Check for continuity between ECM/PCM connector

terminal E5 and body ground.

Repair short in the wire between the ECM/

PCM (E5) and the FTP 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).

74. Turn the ignition switch OFF.

75. Turn the ignition switch ON (II).

76. Measure voltage between ECM/PCM connector

terminal E29 and body ground.

Go to step 80.

Go to step 77.

77. Turn the ignition switch OFF.

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

79. Check for continuity between ECM/PCM connector

terminal E29 and body ground.

Repair short in the wire between the DLC and

the ECM/PCM (E29).

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).

80. Turn the ignition switch OFF.

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

82. Turn the ignition switch ON (II).

Repair short in the wire between the gauge

assembly and the ECM/PCM (E31). If the wires are
OK, replace the gauge assembly.

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).

Wire side of female terminals

Is ther e continuity?

Is ther e about 5 V ( or batter y voltage)?

Is ther e continuity?

Is the MIL on?

05/06/27 17:38:37 61S6M040_110_0259

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−

2005-2006 models

YES

11-260

PGM-FI System

MIL Circuit Troubleshooting (cont’d)

1. Turn the ignition switch ON (II), and watch the MIL.

Go to step 16.

Go to step 2.

2. Turn the ignition switch OFF.

3. Turn the ignition switch ON (II), and watch the MIL.

Go to step 4.

The MIL circuit is OK.

4. Turn the ignition switch OFF.

5. Connect the HDS (see page 11-3).

6. Turn the ignition switch ON (II), and read the HDS.

Go to step 7.

Go to ‘‘DLC Circuit Troubleshooting’’

(see page 11-275).

7. Check for Temporary DTCs or DTCs with the HDS.

Go to the indicated DTC’s Troubleshooting.

Go to step 8.

8. Check the MIL in the DATA LIST with the HDS.

Go to step 9.

Substitute a known-good gauge assembly,

and recheck. If the MIL circuit is OK, replace the
original gauge assembly.

9. Check the SCS in the DATA LIST with the HDS.

Go to step 10.

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).

10. Turn the ignition switch OFF.

11. Jump the SCS line with the HDS.

12. Disconnect ECM/PCM connector E (31P) and the

HDS.

Does the MIL stay of f ?

Does the MIL stay on f or mor e than 20 seconds or
f lash mor e than f ive times?

Does the HDS communicate with the ECM/ PCM?

Ar e any T empor ar y DT Cs or DT Cs indicated?

Is ON indicated?

Is a shor t indicated?

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YES

11-261

ECM/PCM CONNECTOR E (31P)

SCS (BRN)

ECM/PCM CONNECTOR E (31P)

MIL (GRN/ORN)

ECM/PCM CONNECTOR E (31P)

MIL (GRN/ORN)

JUMPER WIRE

13. Check for continuity between ECM/PCM connector

terminal E29 and body ground.

Repair short in the wire between the ECM/

PCM (E29) and the DLC.

Go to step 14.

14. Disconnect the gauge assembly B (20P) connector.

15. Check for continuity between ECM/PCM connector

terminal E31 and body ground.

Repair short in the wire between the ECM/

PCM (E31) and the gauge assembly.

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).

16. Try to start the engine.

Go to step 17.

Go to step 25.

17. Turn the ignition switch OFF.

18. Connect ECM/PCM connector terminal E31 to body

ground with a jumper wire.

19. Turn the ignition switch ON (II).

Go to step 22.

Go to step 20.

20. Turn the ignition switch OFF.

21. Inspect the No. 10 METER (7.5 A) fuse in the under-

dash fuse/relay box.

Check for an open in the wire between the

ECM/PCM (E31) and the gauge assembly. Also
check for a blown MIL bulb. If the wires and the
bulb are OK, replace the gauge assembly.

Repair short in the wire between No. 10

METER (7.5 A) fuse and the gauge assembly. Also
replace the No. 10 METER (7.5 A) fuse.

(cont’d)

Wire side of female terminals

Is ther e continuity?

Does the engine star t?

Is the MIL on?

Is the f use OK ?

05/06/27 17:38:37 61S6M040_110_0261

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