Dtc P1415: Air Pump Electrical Current Sensor Circuit Low Voltage - Honda S2000 Service Manual

Pulsed Secondary Air Iniection System
DTC Troubleshooting (cont'd)
DTC Pl415: Air Pump Electrical Current
Sensor Circuit Low Voltage
1 . R e s e t t h e E C M ( s e e p a g e 1 1 4 ) .
2 . T u r n t h e i g n i t i o n s w i t c h O N ( l l ) .
3. Check for a DTC with the scan tool.
ls DTC P1415 indicated?
YES - Go to step 4.
NO Intermittent failure, system is OK at this time.
Check for poor connections or Ioose terminals at
the air pump electrical current sensor and the
E C M .
Turn the ignition switch OFF,
Disconnect the air pump electrlcal current sensor
3P connector.
T u r n t h e i g n i t i o n s w i t c h O N ( l l ) .
Measure voltage between air pump electrical
current sensor 3P connector terminals No. 1 and
N o . 2 .
AIR PUMP ELECTRICAL CURRENT SENSOR
3P CONNECTOR
Wire side of female terminals
ls there about 5 V?
YES Go to step 8.
NO Go to step 17.
4 .
5 .
6 .
7 .
r-Fir
I
l , r l
-1-l--
L,()J
vcc2
\+/
sG2
(YEL/BLU}
IGRN}
1 1 - 1 5 6
8. Turn the ignition switch OFF.
9. Disconnectthe ECIM connector C (31P).
10. Checkfor continuity between air pump electrical
current sensor 3P connector terminal No. 3 and
body ground.
AIR PUMP ELECTRICAL CURRENT SENSOR
3P CONNECTOR
ECS
(WHT/BLK)
1 1 .
W i r e s i d e o f f e m a l e t e r m i n a l s
ls there continuity?
YES Repair short in the wire between the air
pump electrical current sensor and the ECI\4
lc24l.a
NO Go to step
'l
1.
Connect air pump electrical current sensor 3P
c o n n e c t o r t e r m i n a l s N o . 2 a n d N o . 3 w i t h a j u m p e r
AIR PUMP ELECTRICAL CURRENT SENSOR
3P CONNECTOR
(WHT/BLK)
W i r e s i d e o f f e m a l e t e r m i n a l s
1
2
3
ia