Acura RSX Honda Integra. Manual — part 138
27
28
29
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
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
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e about 5 V ?
Is ther e about 5 V ?
05/06/27 17:38:37 61S6M040_110_0258
30
31
32
−
−
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
YES
NO
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
Wire side of female terminals
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
S6M6AZHA20326939902FAAT00
−
−
−
−
−
−
−
−
−
−
−
−
2005-2006 models
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
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?
05/06/27 17:38:37 61S6M040_110_0260
01
02
03
−
−
−
−
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
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
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
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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