Acura RSX Honda Integra. Manual — part 188
−
01
02
*02
03
−
−
−
−
−
−
YES
NO
YES
NO
EVAP Bypass Solenoid Valve Test
YES
NO
11-458
EVAP System
DTC Troubleshooting (cont’d)
EVAP CANISTER PURGE
VALVE 2P CONNECTOR
PCS
(YEL/BLU)
EVAP CANISTER PURGE
VALVE 2P CONNECTOR
PCS
(YEL/BLU)
A
ECM/PCM CONNECTOR E (31P)
2WBS
(BLU/RED)
JUMPER WIRE
8. Check for continuity between EVAP canister purge
valve 2P connector terminal No. 2 and body ground.
Go to step 9.
Replace the EVAP canister purge valve
(see page 11-412).
9. Disconnect ECM/PCM connector B (24P).
10. Check for continuity between EVAP canister purge
valve 2P connector terminal No. 2 and body ground.
Repair short in the wire between the EVAP
canister purge valve and the ECM/PCM (B21).
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).
11. Disconnect both vacuum hoses from the EVAP two
way valve (A), and connect the vacuum pump/
gauge, 0
30 in.Hg, to the canister port on the
EVAP two way valve.
12. Turn the EVAP bypass solenoid valve on with the
HDS, or connect ECM/PCM connector terminal E20
to body ground with a jumper wire.
13. Turn the ignition switch ON (II).
14. Apply vacuum to the hose.
Go to step 15.
Go to step 20.
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 valve hold vacuum?
05/06/27 17:44:50 61S6M040_110_0458
01
02
05
−
−
−
−
YES
NO
YES
NO
11-459
EVAP BYPASS SOLENOID
VALVE 2P CONNECTOR
2WBS
(BLU/RED)
EVAP BYPASS SOLENOID
VALVE 2P CONNECTOR
IG1
(BLK/ORN)
A
15. Turn the ignition switch OFF.
16. Disconnect the EVAP bypass solenoid valve 2P
connector.
17. Check for continuity between EVAP bypass
solenoid valve 2P connector terminal No. 2 and
body ground.
Go to step 18.
Repair open in the wire between the EVAP
bypass solenoid valve and the ECM/PCM (E20).
18. Turn the ignition switch ON (II).
19. Measure voltage between EVAP bypass solenoid
valve 2P connector terminal No. 1 and body ground.
Replace the EVAP two way/bypass solenoid
valve (A).
Repair open in the wire between the EVAP
bypass solenoid valve and the No. 4 ACG (10 A)
fuse.
(cont’d)
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e batter y voltage?
05/06/27 17:44:50 61S6M040_110_0459
−
*03
07
*04
08
−
−
−
−
YES
NO
EVAP Canister Vent Shut Valve Test
YES
NO
11-460
EVAP System
DTC Troubleshooting (cont’d)
A
ECM/PCM CONNECTOR E (31P)
SG3 (PNK)
FTP (LT GRN)
EVAP CANISTER VENT SHUT
VALVE 2P CONNECTOR
VSV
(LT GRN/RED)
A
20. Plug the fuel tank port (A) of the EVAP two way
valve.
21. While monitoring the FTP sensor voltage with the
HDS, or measuring the voltage between ECM/PCM
connector terminals E4 and E14, slowly pump the
vacuum pump until the voltage drops to about
1.5 V. Stop applying vacuum at about 1.5 V or
damage to the system could occur.
The EVAP bypass solenoid valve/EVAP two
way valve is OK. Go to step 22.
Repair the leak from EVAP bypass solenoid
valve, EVAP two way valve, and FTP sensor.
22. Disconnect the vacuum hose from the EVAP
canister vent filter line (A), and connect a vacuum
pump/gauge, 0
30 in.Hg, to the hose.
23. Turn the ignition switch ON (II).
24. Apply vacuum to the hose with 5 strokes of the
pump.
Go to step 25.
EVAP canister vent shut valve is OK. Go to
step 30.
25. Turn the ignition switch OFF.
26. Disconnect the EVAP canister vent shut valve 2P
connector.
27. Check for continuity between EVAP canister vent
shut valve 2P connector terminal No. 2 and body
ground.
Wire side of female terminals
Wire side of female terminals
Does the voltage dr op to 1.5 V and hold f or at
least 20 seconds?
Does the valve hold vacuum?
05/06/27 17:44:50 61S6M040_110_0460
08
09
08
−
−
−
−
−
−
−
−
YES
NO
YES
NO
Vacuum Hoses and Connections Test
YES
NO
YES
NO
11-461
B
A
EVAP CANISTER VENT SHUT
VALVE 2P CONNECTOR
VSV
(LT GRN/RED)
G
D
A
F
C
B
E
H
J
I
Go to step 28.
Replace the EVAP canister vent shut valve (A)
and O-ring (B).
28. Disconnect ECM/PCM connector E (31P).
29. Check for continuity between EVAP canister vent
shut valve 2P connector terminal No. 2 and body
ground.
Repair short in the wire between the EVAP
canister vent shut valve and the ECM/PCM (E21).
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).
30. Perform the fuel tank vapor control valve test
(see page 11-469).
Go to step 31.
Replace the fuel tank vapor control valve
(see page 11-471).
31. Tighten the fuel cap 3 ‘‘clicks,’’ then monitor the
FTP readings with the HDS.
32. Start the engine, and let it idle for 5 minutes.
33. Check the FTP sensor readings.
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).
Check these parts for leaks:
• Fuel tank (A)
• Fuel fill cap (B)
• Fuel fill pipe (C)
• Fuel tank vapor control valve (D)
• Fuel tank vapor recirculation valve (E)
• Fuel tank vapor recirculation tube (F)
• Fuel tank vapor signal tube (G)
• Fuel tank vapor control vent tube (H)
• EVAP two way valve (I)
• FTP sensor (J)
– Repair or replace any leaking parts.
Wire side of female terminals
Is ther e continuity?
Is ther e continuity?
Is the f uel tank vapor contr ol valve OK ?
Is the r eading above 0.5 kPa ( 0.16 in.Hg, 4 mmHg)
pr essur e, or about 3 V ?
05/06/27 17:44:51 61S6M040_110_0461
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