Page 1392 of 2453
EN(H6DO)(diag)-231
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BJ:DTC P0198 ENGINE OIL TEMPERATURE SENSOR CIRCUIT HIGH
DTC DETECTING CONDITION:
•Immediately at fault recognition
•GENERAL DESCRIPTION
CIRCUIT HIGH, Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
•Hard to start
•Erroneous idling
•Poor driving performance
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode
OPERATION, Clear Memory Mode.> and Inspection Mode
Inspection Mode.>.
WIRING DIAGRAM:
EN-03662
E75
E2
B21
B134 ECM
1
19
29
E1
B20
2
3
23
E75
12
B20
1234567891011 121314 15 16
B21
123412131415567816171819910 1120212223 24 25 2627 28 29 3031 32 33
3534 37363938 41404342 4445 47464948 51505352 54
OILTEMPERATURESENSOR
B134
85610 11 12 13 14 157213416
3019 20 2228 29
91718252123 24323126 2733 34
Page 1393 of 2453

EN(H6DO)(diag)-232
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes No
1CHECK HARNESS BETWEEN OIL TEMPER-
ATURE SENSOR AND ECM CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from oil tempera-
ture sensor.
3) Measure the voltage between oil tempera-
ture sensor connector and engine ground.
Connector & terminal
(E75) No. 2 (+) — Engine ground (–):
Is the voltage more than 10 V? Repair the battery
short circuit of har-
ness between
ECM and oil tem-
perature sensor
connector.
Go to step 2.
2CHECK HARNESS BETWEEN OIL TEMPER-
ATURE SENSOR AND ECM CONNECTOR.
1) Turn the ignition switch to ON.
2) Measure the voltage between oil tempera-
ture sensor connector and engine ground.
Connector & terminal
(E75) No. 2 (+) — Engine ground (–):
Is the voltage more than 10 V? Repair the battery
short circuit of har-
ness between
ECM and oil tem-
perature sensor
connector.
Go to step 3.
3CHECK HARNESS BETWEEN OIL TEMPER-
ATURE SENSOR AND ECM CONNECTOR.
Measure the voltage between oil temperature
sensor connector and engine ground.
Connector & terminal
(E75) No. 2 (+) — Engine ground (–):
Is the voltage more than 4 V? Go to step 4.Repair the har-
ness and connec-
tor.
NOTE:
In this case, repair
the following item:
•Open circuit
of harness be-
tween ECM and
oil temperature
sensor connec-
tor
•Poor contact
of oil tempera-
ture sensor con-
nector
•Poor contact
in ECM connec-
tor
•Poor contact
of coupling con-
nector
Page 1394 of 2453
EN(H6DO)(diag)-233
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
4CHECK HARNESS BETWEEN OIL TEMPER-
ATURE SENSOR AND ECM CONNECTOR.
1) Turn the ignition switch to OFF.
2) Measure the resistance of harness
between oil temperature sensor connector and
engine ground.
Connector & terminal
(E75) No. 1 — Engine ground:
Is the resistance less than 5
Ω?
Replace the oil
temperature sen-
sor.
FU(H6DO)-27, Oil
Te m p e r a t u r e S e n -
sor.>
Repair the har-
ness and connec-
tor.
NOTE:In this case, repair
the following item:
•Open circuit
of harness be-
tween ECM and
oil temperature
sensor connec-
tor
•Poor contact
of oil tempera-
ture sensor con-
nector
•Poor contact
in ECM connec-
tor
•Poor contact
of coupling con-
nector
•Poor contact
of joint connec-
tor
Step Check Yes No
Page 1553 of 2453

EN(H6DO)(diag)-392
General Diagnostic Table
ENGINE (DIAGNOSTICS)
19.General Diagnostic Table
A: INSPECTION
1. ENGINE
NOTE:
Malfunction of parts other than those listed is also possible.
eral.>
Symptom Problem parts
1. Engine stalls during idling.
1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Ignition parts (*1)
4) Engine coolant temperature sensor (*2)
5) Crankshaft position sensor (*3)
6) Camshaft position sensor (*3)
7) Fuel injection parts (*4)
2. Rough idling
1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Engine coolant temperature sensor (*2)
4) Ignition parts (*1)
5) Air intake system (*5)
6) Fuel injection parts (*4)
7) Electronic throttle control
8) Crankshaft position sensor (*3)
9) Camshaft position sensor (*3)
10) Oxygen sensor
11) Fuel pump and fuel pump relay
3. Engine does not return to idle.
1) Engine coolant temperature sensor
2) Electronic throttle control
3) Manifold absolute pressure sensor
4) Mass air flow and intake air temperature sensor
5) Accelerator pedal position sensor
6) Oil temperature sensor
4. Poor acceleration
1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Electronic throttle control
4) Fuel injection parts (*4)
5) Fuel pump and fuel pump relay
6) Engine coolant temperature sensor (*2)
7) Crankshaft position sensor (*3)
8) Camshaft position sensor (*3)
9) A/C switch and A/C cut relay
10) Engine torque control signal circuit
11) Ignition parts (*1)
12) Accelerator pedal position sensor
13) Oil temperature sensor
5. Engine stalls, engine sags or hesitates at accel-
eration.
1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Engine coolant temperature sensor (*2)
4) Crankshaft position sensor (*3)
5) Camshaft position sensor (*3)
6) Purge control solenoid valve
7) Fuel injection parts (*4)
8) Electronic throttle control
9) Fuel pump and fuel pump relay
Page 1554 of 2453

EN(H6DO)(diag)-393
General Diagnostic Table
ENGINE (DIAGNOSTICS)
*1: Check ignition coil & ignitor assembly and spark plug.
*2: Indicate the symptom occurring only in cold temperatures.
*3: Make sure the secure installation.
*4: Check the fuel injector and fuel pressure regulator.
*5: Inspect air leak in air intake system.
6. Surging
1) Mass air flow and intake air temperature sensor
2) Manifold absolute pressure sensor
3) Engine coolant temperature sensor (*2)
4) Crankshaft position sensor (*3)
5) Camshaft position sensor (*3)
6) Fuel injection parts (*4)
7) Electronic throttle control
8) Fuel pump and fuel pump relay
7. Spark knock
1) Mass air flow and intake air temperature sensor
2) Manifold absolute pressure sensor
3) Engine coolant temperature sensor
4) Knock sensor
5) Fuel injection parts (*4)
6) Fuel pump and fuel pump relay
8. After burning in exhaust system
1) Mass air flow and intake air temperature sensor
2) Manifold absolute pressure sensor
3) Engine coolant temperature sensor (*2)
4) Fuel injection parts (*4)
5) Fuel pump and fuel pump relay
Symptom Problem parts
Page 1567 of 2453
FU(H6DO)-6
General Description
FUEL INJECTION (FUEL SYSTEMS)
4. CRANKSHAFT POSITION, CAMSHAFT POSITION AND KNOCK SENSORS
(1) Crankshaft position sensor (6) Variable valve lift diagnosis oil
pressure switch RH
Tightening torque: N·m (kgf-m, ft-lb)
(2) Knock sensor RHT1: 6.4 (0.65, 4.7)
(3) Knock sensor LH (7) Variable valve lift diagnosis oil
pressure switch LH
T2: 17 (1.7, 12.5)
(4) Camshaft position sensor RHT3: 18 (1.8, 13.3)
(5) Camshaft position sensor LH (8) Oil temperature sensorT4: 25 (2.5, 18)
FU-02110
(6)
(4)
T2
T1
(3)
T4
(1)
(8)
T1
T3
(5)
T1
(2)
T4
(7)
T2
Page 1588 of 2453
FU(H6DO)-27
Oil Temperature Sensor
FUEL INJECTION (FUEL SYSTEMS)
13.Oil Temperature Sensor
A: REMOVAL
1) Remove the collector cover.
2) Disconnect the ground cable from battery.
3) Remove the air intake chamber.
IN(H6DO)-6, REMOVAL, Air Intake Chamber.>
4) Disconnect the connector from oil temperature
sensor.
5) Remove the oil temperature sensor.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
18 N·m (1.8 kgf-m, 13.3 ft-lb)
FU-02138
Page 1616 of 2453

GD(H6DO)-4
List of Diagnostic Trouble Code (DTC)
GENERAL DESCRIPTION
P0139 O2 Sensor Circuit Slow Response
(Bank 1 Sensor 2)
RESPONSE (BANK 1 SENSOR 2), Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0140 O2 Sensor Circuit No Activity
Detected (Bank 1 Sensor 2)
DETECTED (BANK 1 SENSOR 2), Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0151 O2 Sensor Circuit Low Voltage
(Bank 2 Sensor 1)
(BANK 2 SENSOR 1), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0152 O2 Sensor Circuit High Voltage
(Bank 2 Sensor 1)
(BANK 2 SENSOR 1), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0153 O2 Sensor Circuit Slow Response
(Bank 2 Sensor 1)
RESPONSE (BANK 2 SENSOR 1), Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0154 O2 Sensor Circuit No Activity
Detected (Bank 2 Sensor 1)
DETECTED (BANK 2 SENSOR 1), Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0157 O2 Sensor Circuit Low Voltage
(Bank 2 Sensor 2)
(BANK 2 SENSOR 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0158 O2 Sensor Circuit High Voltage
(Bank 2 Sensor 2)
(BANK 2 SENSOR 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0159 O2 Sensor Circuit Slow Response
(Bank 2 Sensor 2)
RESPONSE (BANK 2 SENSOR 2), Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0160 O2 Sensor Circuit No Activity
Detected (Bank 2 Sensor 2)
DETECTED (BANK 2 SENSOR 2), Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0171 System Too Lean (Bank 1)
nostic Trouble Code (DTC) Detecting Criteria.>
P0172 System Too Rich (Bank 1)
nostic Trouble Code (DTC) Detecting Criteria.>
P0174 System Too Lean (Bank 2)
nostic Trouble Code (DTC) Detecting Criteria.>
P0175 System Too Rich (Bank 2)
nostic Trouble Code (DTC) Detecting Criteria.>
P0181 Fuel Temperature Sensor “A” Cir-
cuit Range/Performance
CIRCUIT RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0182 Fuel Temperature Sensor “A” Cir-
cuit Low Input
CIRCUIT LOW INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0183 Fuel Temperature Sensor “A” Cir-
cuit High Input
CIRCUIT HIGH INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0196 Engine Oil Temperature Sensor
Circuit Range/Performance
SOR CIRCUIT RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0197 Engine Oil Temperature Sensor
Circuit Low
SOR CIRCUIT LOW, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0198 Engine Oil Temperature Sensor
Circuit High
SOR CIRCUIT HIGH, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0222 Throttle/Pedal Position Sensor/
Switch “B” Circuit Low Input
SOR/SWITCH “B” CIRCUIT LOW INPUT, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0223 Throttle/Pedal Position Sensor/
Switch “B” Circuit High Input
SOR/SWITCH “B” CIRCUIT HIGH INPUT, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0230 Fuel Pump Primary Circuit
Diagnostic Trouble Code (DTC) Detecting Criteria.>
DTC Item Index