Dtc P0132: Primary Ho2S (Sensor L) Circuit) High Voltage - Honda S2000 Service Manual

PGM-FI System
DTC Troubleshooting (cont'd)
DTC P0132: Primary HO2S (Sensor llCircuit
High Voltage
1 . R e s e t t h e E C M ( s e e p a g e 1 1 - 4 ) .
2. Stan the engine. Hold the engine at 3.000 rpm with
no load (in neutral) until the radiator fan comes on.
3. Check the primary HO2S (Sensor 1) output voltage
with the scan tool.
Does the voltage stay at 0.9 V ot mote?
YES - Go to step 4.
NO- Intermittent failure. system is OK at this time.
Check for poor connections or loose terminals at
the Primary HO2S (Sensor 1) and at the ECM.I
4. Turn the ignition switch OFF.
5. Disconnect the primary HO2S {Sensor 1) 4P
conneclor.
6. Connect primary HO2S (Sensor 1) 4P connector
t e r m i n a l s N o . 1 a n d N o . 2 w i t h a j u m p e r w i r e .
PRIMARY HO2S {Sensor 1) ,lP CONNECTOR
PHO2S
(WHTI
sG2
(GRN/YELI
JUMPER WIRE
t--=---l
LJ-ril___i
t t - l
f--r---1
l 3 1 4 l
Wire side of female terminals
11-56
1 .
8 .
9 .
1 0 .
1 1 .
12.
Turn the ignition switch ON (ll).
Check the primary HO2S (Sensor
'1)
output voltage
with the scan tool.
Is therc 0.9 V or more?
YES Go to step 9.
N O - R e p l a c e t h e p r i m a r y H O 2 S ( S e n s o r 1 ) . I
Turn the ignition switch OFF.
C o n n e c t E C M c o n n e c t o r t e r m i n a l s C 1 6 a n d C 1 8
with a jumper wire.
ECM CONNECTOR C 131PI
2 4
5 7 8 I 1 0
11 12
t 4
15
1 1
1E
19 20 21 ?2
25
+
21
+
a
30
PHO2S IWHTI SG2 {GRN/YEL)
JUMPER WIRE
Wire side of female terminals
Turn the ignition switch ON (ll).
Check the primary HO2S (Sensor
'1)
output voltage
with the scan tool.
ls thete 0.9 V ot morc?
YES Substitute a known-good ECM and recheck
{see page 11-5). lf the symptom/indication goes
away replace the original ECM. t
NO-Repair open in the wire between the ECM
( C 1 6 , C 1 8 ) a n d t h e p r i m a r y H O 2 S ( S e n s o r 1 ) . 1