Acura RSX Honda Integra. Manual — part 157
01
02
03
S6M6AALK72100090511FAAT00
−
−
−
−
−
−
−
−
DTC P0511:
YES
NO
YES
NO
YES
NO
YES
NO
11-334
Idle Control System
DTC Troubleshooting (cont’d)
IAC VALVE 3P CONNECTOR
IGP
(YEL/BLK)
IAC VALVE 3P CONNECTOR
PG (BLK)
IACV
(BLK/RED)
ECM/PCM CONNECTOR A (31P)
IAC Valve Circuit Malfunction
(2005-2006 models)
1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Check for Temporary DTCs or DTCs with the HDS.
Go to step 4.
Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the IAC valve and the ECM/PCM.
4. Turn the ignition switch OFF.
5. Disconnect the IAC valve 3P connector.
6. Turn the ignition switch ON (II).
7. Measure voltage between IAC valve 3P connector
terminal No. 2 and body ground.
Go to step 8.
Repair open in the wire between the IAC valve
and PGM-FI main relay 1 (FI MAIN), then go to
step 21.
8. Turn the ignition switch OFF.
9. Check for continuity between body ground and IAC
valve 3P connector terminal No. 1.
Go to step 10.
Repair open in the wire between the IAC valve
and G101, then go to step 21.
10. Turn the ignition switch OFF.
11. Jump the SCS line with the HDS.
12. Disconnect ECM/PCM connector A (31P).
13. Check for continuity between ECM/PCM connector
terminal A12 and body ground.
Repair short in the wire between the ECM/
PCM (A12) and the IAC valve, then go to step 21.
Go to step 14.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is DT C P0511 indicated?
Is ther e batter y voltage?
Is ther e continuity?
Is ther e continuity?
05/06/27 17:40:55 61S6M040_110_0334
04
05
06
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
11-335
IAC VALVE 3P CONNECTOR
IACV (BLK/RED)
JUMPER WIRE
IACV
(BLK/RED)
ECM/PCM CONNECTOR A (31P)
IACV
(BLK/RED)
ECM/PCM CONNECTOR A (31P)
14. Connect IAC valve 3P connector terminal No. 3 to
body ground with a jumper wire.
15. Check for continuity between ECM/PCM connector
terminal A12 and body ground.
Go to step 16.
Repair open in the wire between the ECM/
PCM (A12) and the IAC valve, then go to step 21.
16. Reconnect the IAC valve 3P connector.
17. Turn the ignition switch ON (II).
18. Measure voltage between ECM/PCM connector
terminal A12 and body ground.
Go to step 26.
Go to step 19.
19. Turn the ignition switch OFF.
20. Replace the IAC valve (see page 11-412).
21. Turn the ignition switch ON (II).
22. Reset the ECM/PCM with the HDS.
23. Do the ECM/PCM idle learn procedure (see page
11-349).
24. Check for Temporary DTCs or DTCs with the HDS.
If DTC P0511 is indicated, check for poor
connections or loose terminals at the IAC valve and
the ECM/PCM, then go to step 1. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.
Go to step 25.
(cont’d)
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?
Ar e any T empor ar y DT Cs or DT Cs indicated?
05/06/27 17:40:56 61S6M040_110_0335
−
−
−
−
YES
NO
YES
NO
11-336
Idle Control System
DTC Troubleshooting (cont’d)
25. Monitor the OBD STATUS for DTC P0511 in the
DTCs MENU with the HDS.
Troubleshooting is complete.
If the screen indicates FAILED, go to step 1
and recheck. If the screen indicates NOT
COMPLETED, go to step 23 and recheck.
26. Update the ECM/PCM if it does not have the latest
software, or substitute a known-good ECM/PCM
(see page 11-6).
27. Check for Temporary DTCs or DTCs with the HDS.
If DTC P0511 is indicated, check for poor
connections or loose terminals at the IAC valve and
the ECM/PCM, then go to step 1. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.
If the ECM/PCM was updated, troubleshooting
is complete. If the ECM/PCM was substituted,
replace the original ECM/PCM (see page 11-284).
Does the scr een indicate PASSED?
Ar e any T empor ar y DT Cs or DT Cs indicated?
05/06/27 17:40:56 61S6M040_110_0336
01
01
S6M6AZFA20336112101FAAT00
−
−
−
−
−
−
2002-2004 models
YES
NO
YES
NO
YES
NO
11-337
A/C Signal Circuit Troubleshooting
ECM/PCM CONNECTORS
A (31P)
E (31P)
LG1
(BRN/YEL)
JUMPER WIRE
ACC
(RED)
UNDER-HOOD FUSE/RELAY BOX
14P CONNECTOR
ACC (RED)
JUMPER WIRE
1. Turn the ignition switch ON (II).
2. Momentarily connect ECM/PCM connector
terminals A24 and E18 with a jumper wire several
times.
Go to step 3.
Go to step 6.
3. Start the engine.
4. Turn the blower switch ON.
5. Turn the A/C switch ON.
The air conditioning signal 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).
6. Momentarily connect under-hood fuse/relay box
14P connector terminal No. 10 and body ground
with a jumper wire several times.
Repair open in the wire between the ECM/
PCM (E18) and the A/C clutch relay.
Check the A/C system for other symptoms.
Wire side of female terminals
Wire side of female terminals
Is ther e a clicking noise f r om the A/ C compr essor
clutch?
Does the A/ C oper ate?
Is ther e a clicking noise f r om the A/ C compr essor
clutch?
05/06/27 17:40:56 61S6M040_110_0337
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