Heated Oxygen Sensor (Ho2S) Heater - Acura Integra 1998 Service Manual

PGM-FI System
Heated Oxygen Sensor (HO2S) Heater
T h e s c a n t o o l i n d i c a t e s D i a g n o s t i c T r o u b l e c o d e ( D T C ) P 0 1 3 5 : A p r o b l e m i n t h e P r i m a r y
H e a t e d o x y g e n
Sensor lHO2S) (Sensor
'l)
Heater circuit
The scan tool indicates Diagnostic Trouble Code (DTC)P0141: A problem in the Secondary Heated Oxygen
Sensor {HO25) {Sensor 2) Heater circuit
Fo13sl
lFol4il
PRIMARY Ho2S (sen3or 1) CONNECToR C113,
SECONDARY HO2S (sensor 2l CONNECTOR Cil51'
Terminal side of male terminals
PRIMARY HO2S (SonSor 1l CONNECTOR Cl13,
SECONDARY HO2S lsan3or 2) CONNECTOR C451r
o2sHTC
(BLK/WHT,
GRN/REO'}
IGP
{YEL/BLK}
l G l r
(BLK/YEL)
( T o p a g e 1 1 - 7 5 )
* : P 0 1 4 1
-
The MIL has been rePorted on
-
DTC P0135 and/or P0141 ate
stored.
Probl€m verilication:
1. Do the ECM Reset Procedure
2. Start the engine.
lnt€rmitlent failure. 3vslem is OK
at this time. Check for Poo. con'
noction3 o. loose wire ai Cl13
(Primary HO2S (S.nsor 1ll. gl51
lSocondary H02S lSensor 2))'
and ECM.
Check for an open or short in tho
HO2S:
1. Turn the ignition switch OFF.
2. Disconnect the Primary HO2S
( S e n s o r 1 ) S e c o n d a r y H O 2 S
{Sensor 2)'connector,
3 . A t t h e H O 2 S s i d e m e a s u r e
resistance between the 4P con-
nector No. 3 and No. 4 termi
nals on the HO2S side.
ls there 10 - 40 0?
C h e c k I o r c o n t i n u i t y b e t w e e n
b o d y g r o u n d a n d t h e H O 2 S 4 P
c o n n e c t o r l e r m i n a l s N o . 3 a n d
N o . 4 i n d i v i d u a l l y .
ls there continuity?
Ch€ck for an open or short in the
wir63 (lGP, lG1*, O2SHTC lines):
1. Turn the ignition switch ON (ll).
2. Measure voltage between No.
3 terminal and No. 4 terminal
on the harness side of the 4P
l s t h e r e b a t l e r y v o h a g e ?
{ 1 o p a g e 1 l - 7 5 )
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