Honda CR-V 1997 Service Manual page 317

'99 - 00 models:
-
The MIL has been reported on.
-
OTe P0132 is stored.
I
Problem verification:
1. Do the ECMIPCM Reset Pro-
cedure.
2. Start the engine. Hold the
engine at 3,000 rpm with no
load (in Park or neutral) until
the radiator fan comes on.
3.
Check the Primary H02S
(Sensor 1) output voltage with
the scan tool during decelera-
tion using completely closed
throttle.
I
Intermittent failure, system is OK
Does the voltage stay at 1.5 V
NO
at this time. Check for poor con-
nections or loose wires at C111
or more?
(Primary H02S. Sensor 1) and at
I
YES
tho ECM/PCM.
Check for an open in the Primary
H02S:
1.
Turn the ignition switch OFF.
2. Disconnect the Primary H02S
(Sensor 1) connector.
3.
Connect the Primary H02S
(Sensor 1) 4P connector termi-
nals No.1 and No.2 with a
jumper wire.
4. Turn the ignition switch ON (10.
5,
Check the Primary H02S
(Sensor 1) output voltage with
the scan tool.
I
NO
"
Is there 1.5 V or more?
./
Replace the Primary
H02S.
I
YES
Check for an open in the wire
IPH02S line):
1. Turn the ignition switch OFF.
2. Connect ECM/PCM connector
terminals C16 and C18 with a
jumper wire.
3. Turn the ignition switch ON (II).
4. Check the
Primary H02S
(Sensor 1) output voltage with
the scan tool.
I
Repair open in the wire between
"
YES
Is there 1.5 Vor more?
./
the ECM/PCM ICI6) and tho
I
NO
Primary H02S (Sensor
1).
Substitute a known·good ECMI
PCM and recheck. If symptom
I
indication goes away, r.pace the
original ECM/PCM.
PRIMARY H02S lSon.or 11 'P
CONNECTOR IC111)
JUMPER WIRE
PH02S~SG2
IWHTI IGRNI
BlKI
1 2
3 ,
Wire side of female terminals
ECM/PCM CONNECTOR C 131 P)
l'
2 3
V
5
V
7
8 •
1/
V 1/
/
1/
/ 1
6 17 18
,.
20 21 22
23
/
25
27 2.30 31
PH02SIWHTI SG21GRN/BL
~
JUMPER WIRE
Wire side of female terminals
KI
(conl'd)
11-115