1997 HONDA CIVIC Workshop Manual

Page 425 of 2189

HONDA CIVIC 1997 6.G Workshop Manual PGM-FI System
Secondary Heated Oxygen Sensor (Secondary HO2S) {sensor 2l
[FO13a]l The scan tool indic€tes Diagnostic Trouble Code {DTC) P0139: A slow response probtem in the Secondary Heated- Uxygen

Page 426 of 2189

HONDA CIVIC 1997 6.G Workshop Manual tFo135l
iPol4tl
Heated Oxygen Sensor (HO2SI Heater
(96 - 98 Mbdels,99 - 00 Dl6Y5 engine with M/Tl
*: p0141 (To page 11-158)**: D16Y8 engane
The scan tool indicates Diagnostrc Trouble code (DTC) P01

Page 427 of 2189

HONDA CIVIC 1997 6.G Workshop Manual PGM-FI System
a
a
Heated Oxygen Sensor (HO2S) Heater
(96 - 98 Models,99 - 00 D16Y5 engine with M/T) (contdl
PRIMARY HO2S {SENSOR 1I 4P CONNECTOR{c1231SECONDARY HO2S {SENSOR 2} 4PcoNNECTOR 1C125)r
r

Page 428 of 2189

HONDA CIVIC 1997 6.G Workshop Manual IHeated Oxygen Sensor (HO2S) Heater
iss - oo Mb-dels except D16Y5 engine with M/Tl
The scan toot indicates Diagnostic Trouble Code (DTC) P0135: An electrical problem in the Primary Heated
Oxygen Sens

Page 429 of 2189

HONDA CIVIC 1997 6.G Workshop Manual PGM-FI System
Heated Oxygen Sensor (HO2S) Heater
(99 - 00 Models except D16Y5 engine with M/T)
(From page 11-159)
Substitute a known-good ECM/PCM and recheck. lf symptom/indication goes away, replace

Page 430 of 2189

HONDA CIVIC 1997 6.G Workshop Manual Heated Oxygen Sensor (HO2SI Heater (Dl6Y5 engine with M/Tl
The scan tool indicates Diagnostic Trouble Code (DTC) P1166: An electrical problem in the Primary Heated
Oxygen Sensor (Primary H02S) Heater

Page 431 of 2189

HONDA CIVIC 1997 6.G Workshop Manual PGM-FI System
I
a
a
Ch6ck the PO2SHTC circuit:1. Start engine and keep enginerpm at idle.2. At the engine wire harness,measure voltage betweenPrimary HO2S (Sensor 1) 8Pconnector terminal No. 1 termina

Page 432 of 2189

HONDA CIVIC 1997 6.G Workshop Manual The scan tool indicates Diagnostic Trouble Code (DTC) Pl167: A system malfunction in the Primary Heated
Orygen Sensor {Primary HO2S) (Sensor 1) Heater circuit
PRIMABY HO2S ISENSOR 1} 8P CONNECTOR
tc14