Honda S2000 Service Manual page 382

Pulsed Secondary Air Iniection System
1 4 .
1 5 .
DTC Troubleshooting (cont'dl
Disconnect ECM connector A {32P),
Check for continuity between air control valve
vacuum control solenoid valve 2P connector
t e r m i n a l N o . 2 a n d b o d y g r o u n d .
AIR CONTROL VALVE VACUUM CONTROL
SOLENOID VALVE 2P CONNECTOR
1 7 .
Wire side of female terminals
ls there continuity?
YES Repair short in the wire between the air
control valve vacuum control solenoid valve and
the Ecl\il (A2). t
NO Substitute a known-good ECM and recheck
{see page 1 1-5). lf the symptom/indication goes
a w a y , r e p l a c e t h e o r i g i n a l E C M . I
Turn the ignition switch OFF.
C h e c k t h e N o . 6 A C G ( 1 5 A ) f u s e i n t h e u n d e r - d a s h
fuse/relay box.
ls the luse OK?
YES Go to step 18.
NO Repair short in the wire between No. 6 ACG
( 1 5 A ) f u s e a n d t h e g a u g e a s s e m b l y . T h e n r e p l a c e
t h e N o . 6 A C G ( 1 5 A ) f u s e . l
t o .
1 1 - 1 5 4
1 8 .
1 9 .
20.
Disconnect the air control valve vacuum control
solenoid valve 2P connector.
Turn the ignition switch ON (ll).
Measure voltage between air control valve vacuum
control solenoid valve 2P connector terminal No. 1
a n d b o d y g r o u n d .
AIR CONTROL VALVE VACUUM CONTROL
SOLENOID VALVE 2P CONNECTOR
Wire side oI {emale terminals
Is there battery voltage?
YES Go to step 21.
NO Repair open in the wire between the No. 6
A C G ( 1 5 A ) f u s e i n t h e u n d e r - d a s h f u s e / r e l a y b o x
and air control solenoid valve.l
Turn the ignition switch OFF.
Reconnect the air control valve vacuum control
solenoid valve 2P connector.
Disconnect ECM connector A (32P).
Turn the ignition switch oN {ll), and measure
voltage between ECM connector terminal A2 and
body ground.
ls there less than 1.0 V?
YES Repair open in the wire between the air
control valve vacuum control solenoid valve and
the ECM (A2). lf the wire is OK, replace the aar
control valve vacuum control solenoid valve.I
NO Substitute a known-good ECM and recheck
(see page 11-5), lf the symptom/lndication goes
away, replace the original ECM.I
a 1
22.
2 4 .