sensor SUBARU TRIBECA 2009 1.G Service Workshop Manual

GD(H6DO)-5
List of Diagnostic Trouble Code (DTC)
GENERAL DESCRIPTION
P0301 Cylinder 1 Misfire Detected <Ref. to GD(H6DO)-104, DTC P0301 CYLINDER 1 MISFIRE DETECTED,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0302 Cylinder 2 Misfire Detected <Ref. to GD(H6DO)-109, DTC P0302 CYLINDER 2 MISFIRE DETECTED,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0303 Cylinder 3 Misfire Detected <Ref. to GD(H6DO)-109, DTC P0303 CYLINDER 3 MISFIRE DETECTED,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0304 Cylinder 4 Misfire Detected <Ref. to GD(H6DO)-109, DTC P0304 CYLINDER 4 MISFIRE DETECTED,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0305 Cylinder 5 Misfire Detected <Ref. to GD(H6DO)-109, DTC P0305 CYLINDER 5 MISFIRE DETECTED,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0306 Cylinder 6 Misfire Detected <Ref. to GD(H6DO)-109, DTC P0306 CYLINDER 6 MISFIRE DETECTED,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0327 Knock Sensor 1 Circuit Low Input
(Bank 1 or Single Sensor)
<Ref. to GD(H6DO)-110, DTC P0327 KNOCK SENSOR 1 CIRCUIT LOW
INPUT (BANK 1 OR SINGLE SENSOR), Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0328 Knock Sensor 1 Circuit High Input
(Bank 1 or Single Sensor)
<Ref. to GD(H6DO)-112, DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH
INPUT (BANK 1 OR SINGLE SENSOR), Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0332 Knock Sensor 2 Circuit Low Input
(Bank 2)
<Ref. to GD(H6DO)-113, DTC P0332 KNOCK SENSOR 2 CIRCUIT LOW
INPUT (BANK 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0333 Knock Sensor 2 Circuit High Input
(Bank 2)
<Ref. to GD(H6DO)-113, DTC P0333 KNOCK SENSOR 2 CIRCUIT HIGH
INPUT (BANK 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0335 Crankshaft Position Sensor “A” Cir-
cuit
<Ref. to GD(H6DO)-114, DTC P0335 CRANKSHAFT POSITION SENSOR
“A” CIRCUIT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0336 Crankshaft Position Sensor “A” Cir-
cuit Range/Performance
<Ref. to GD(H6DO)-116, DTC P0336 CRANKSHAFT POSITION SENSOR
“A” CIRCUIT RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0340 Camshaft Position Sensor “A” Cir-
cuit (Bank 1 or Single Sensor)
<Ref. to GD(H6DO)-118, DTC P0340 CAMSHAFT POSITION SENSOR “A”
CIRCUIT (BANK 1 OR SINGLE SENSOR), Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0345 Camshaft Position Sensor “A” Cir-
cuit (Bank 2)
<Ref. to GD(H6DO)-120, DTC P0345 CAMSHAFT POSITION SENSOR “A”
CIRCUIT (BANK 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0420 Catalyst System Efficiency Below
Threshold (Bank 1)
<Ref. to GD(H6DO)-121, DTC P0420 CATALYST SYSTEM EFFICIENCY
BELOW THRESHOLD (BANK 1), Diagnostic Trouble Code (DTC) Detecting
Criteria.>
P0442 Evaporative Emission Control Sys-
tem Leak Detected (Small Leak)
<Ref. to GD(H6DO)-124, DTC P0442 EVAPORATIVE EMISSION CON-
TROL SYSTEM LEAK DETECTED (SMALL LEAK), Diagnostic Trouble
Code (DTC) Detecting Criteria.>
P0447 Evaporative Emission Control Sys-
tem Vent Control Circuit Open
<Ref. to GD(H6DO)-136, DTC P0447 EVAPORATIVE EMISSION CON-
TROL SYSTEM VENT CONTROL CIRCUIT OPEN, Diagnostic Trouble
Code (DTC) Detecting Criteria.>
P0448 Evaporative Emission Control Sys-
tem Vent Control Circuit Shorted
<Ref. to GD(H6DO)-138, DTC P0448 EVAPORATIVE EMISSION CON-
TROL SYSTEM VENT CONTROL CIRCUIT SHORTED, Diagnostic Trouble
Code (DTC) Detecting Criteria.>
P0451 Evaporative Emission Control Sys-
tem Pressure Sensor
<Ref. to GD(H6DO)-140, DTC P0451 EVAPORATIVE EMISSION CON-
TROL SYSTEM PRESSURE SENSOR, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0452 Evaporative Emission Control Sys-
tem Pressure Sensor Low Input
<Ref. to GD(H6DO)-142, DTC P0452 EVAPORATIVE EMISSION CON-
TROL SYSTEM PRESSURE SENSOR LOW INPUT, Diagnostic Trouble
Code (DTC) Detecting Criteria.>
P0453 Evaporative Emission Control Sys-
tem Pressure Sensor High Input
<Ref. to GD(H6DO)-144, DTC P0453 EVAPORATIVE EMISSION CON-
TROL SYSTEM PRESSURE SENSOR HIGH INPUT, Diagnostic Trouble
Code (DTC) Detecting Criteria.>
P0456 Evaporative Emission Control Sys-
tem Leak Detected (Very Small
Leak)
<Ref. to GD(H6DO)-146, DTC P0456 EVAPORATIVE EMISSION CON-
TROL SYSTEM LEAK DETECTED (VERY SMALL LEAK), Diagnostic Trou-
ble Code (DTC) Detecting Criteria.>
DTC Item Index

GD(H6DO)-6
List of Diagnostic Trouble Code (DTC)
GENERAL DESCRIPTION
P0457 Evaporative Emission Control Sys-
tem Leak Detected (Fuel Cap
Loose/Off)
<Ref. to GD(H6DO)-146, DTC P0457 EVAPORATIVE EMISSION CON-
TROL SYSTEM LEAK DETECTED (FUEL CAP LOOSE/OFF), Diagnostic
Tr o u b l e C o d e ( D T C ) D e t e c t i n g C r i t e r i a . >
P0458 Evaporative Emission Control Sys-
tem Purge Control Valve Circuit
Low
<Ref. to GD(H6DO)-147, DTC P0458 EVAPORATIVE EMISSION CON-
TROL SYSTEM PURGE CONTROL VALVE CIRCUIT LOW, Diagnostic Trou-
ble Code (DTC) Detecting Criteria.>
P0459 Evaporative Emission Control Sys-
tem Purge Control Valve Circuit
High
<Ref. to GD(H6DO)-149, DTC P0459 EVAPORATIVE EMISSION CON-
TROL SYSTEM PURGE CONTROL VALVE CIRCUIT HIGH, Diagnostic
Tr o u b l e C o d e ( D T C ) D e t e c t i n g C r i t e r i a . >
P0461 Fuel Level Sensor Circuit Range/
Per fo r m an ce
<Ref. to GD(H6DO)-151, DTC P0461 FUEL LEVEL SENSOR CIRCUIT
RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P0462 Fuel Level Sensor Circuit Low
Input
<Ref. to GD(H6DO)-153, DTC P0462 FUEL LEVEL SENSOR CIRCUIT
LOW INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0463 Fuel Level Sensor Circuit High
Input
<Ref. to GD(H6DO)-155, DTC P0463 FUEL LEVEL SENSOR CIRCUIT
HIGH INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0464 Fuel Level Sensor Circuit Intermit-
tent
<Ref. to GD(H6DO)-157, DTC P0464 FUEL LEVEL SENSOR CIRCUIT
INTERMITTENT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0483 Cooling Fan Rationality Check <Ref. to GD(H6DO)-160, DTC P0483 COOLING FAN RATIONALITY
CHECK, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0500 Vehicle Speed Sensor <Ref. to GD(H6DO)-161, DTC P0500 VEHICLE SPEED SENSOR, Diagnos-
tic Trouble Code (DTC) Detecting Criteria.>
P0506 Idle Control System RPM Lower
Than Expected
<Ref. to GD(H6DO)-163, DTC P0506 IDLE CONTROL SYSTEM RPM
LOWER THAN EXPECTED, Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P0507 Idle Control System RPM Higher
Than Expected
<Ref. to GD(H6DO)-165, DTC P0507 IDLE CONTROL SYSTEM RPM
HIGHER THAN EXPECTED, Diagnostic Trouble Code (DTC) Detecting Cri-
teria.>
P0512 Starter Request Circuit <Ref. to GD(H6DO)-167, DTC P0512 STARTER REQUEST CIRCUIT, Diag-
nostic Trouble Code (DTC) Detecting Criteria.>
P0513 Incorrect Immobilizer Key <Ref. to GD(H6DO)-168, DTC P0513 INCORRECT IMMOBILIZER KEY,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0519 Idle Control System Malfunction
(Fail-Safe)
<Ref. to GD(H6DO)-169, DTC P0519 IDLE CONTROL SYSTEM MAL-
FUNCTION (FAIL-SAFE), Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P0600 Serial Communication Link <Ref. to GD(H6DO)-170, DTC P0600 SERIAL COMMUNICATION LINK,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0604 Internal Control Module Random
Access Memory (RAM) Error
<Ref. to GD(H6DO)-171, DTC P0604 INTERNAL CONTROL MODULE
RANDOM ACCESS MEMORY (RAM) ERROR, Diagnostic Trouble Code
(DTC) Detecting Criteria.>
P0605 Internal Control Module Read Only
Memory (ROM) Error
<Ref. to GD(H6DO)-172, DTC P0605 INTERNAL CONTROL MODULE
READ ONLY MEMORY (ROM) ERROR, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0607 Control Module Performance <Ref. to GD(H6DO)-173, DTC P0607 CONTROL MODULE PERFOR-
MANCE, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0638 Throttle Actuator Control Range/
Per fo r m an ce ( B an k 1 )
<Ref. to GD(H6DO)-176, DTC P0638 THROTTLE ACTUATOR CONTROL
RANGE/PERFORMANCE (BANK 1), Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0691 Cooling Fan 1 Control Circuit Low <Ref. to GD(H6DO)-179, DTC P0691 COOLING FAN 1 CONTROL CIRCUIT
LOW, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0692 Cooling Fan 1 Control Circuit High <Ref. to GD(H6DO)-180, DTC P0692 COOLING FAN 1 CONTROL CIRCUIT
HIGH, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0700 Transmission Control System (MIL
Request)
<Ref. to GD(H6DO)-181, DTC P0700 TRANSMISSION CONTROL SYSTEM
(MIL REQUEST), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P1152 O2 Sensor Circuit Range/Perfor-
mance (Low) (Bank1 Sensor1)
<Ref. to GD(H6DO)-182, DTC P1152 O2 SENSOR CIRCUIT RANGE/PER-
FORMANCE (LOW) (BANK 1 SENSOR 1), Diagnostic Trouble Code (DTC)
Detecting Criteria.>
DTC Item Index

GD(H6DO)-7
List of Diagnostic Trouble Code (DTC)
GENERAL DESCRIPTION
P1153 O2 Sensor Circuit Range/Perfor-
mance (High) (Bank1 Sensor1)
<Ref. to GD(H6DO)-184, DTC P1153 O2 SENSOR CIRCUIT RANGE/PER-
FORMANCE (HIGH) (BANK 1 SENSOR 1), Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P1154 O2 Sensor Circuit Range/Perfor-
mance (Low) (Bank 2 Sensor 1)
<Ref. to GD(H6DO)-186, DTC P1154 O2 SENSOR CIRCUIT RANGE/PER-
FORMANCE (LOW) (BANK 2 SENSOR 1), Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P1155 O2 Sensor Circuit Range/Perfor-
mance (High) (Bank 2 Sensor 1)
<Ref. to GD(H6DO)-186, DTC P1155 O2 SENSOR CIRCUIT RANGE/PER-
FORMANCE (HIGH) (BANK 2 SENSOR 1), Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P1160 Return Spring Failure <Ref. to GD(H6DO)-187, DTC P1160 RETURN SPRING FAILURE, Diag-
nostic Trouble Code (DTC) Detecting Criteria.>
P1443 Vent Control Solenoid Valve Func-
tion Problem
<Ref. to GD(H6DO)-189, DTC P1443 VENT CONTROL SOLENOID VALVE
FUNCTION PROBLEM, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P1518 Starter Switch Circuit Low Input <Ref. to GD(H6DO)-191, DTC P1518 STARTER SWITCH CIRCUIT LOW
INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P1560 Back-Up Voltage Circuit Malfunc-
tion
<Ref. to GD(H6DO)-192, DTC P1560 BACK-UP VOLTAGE CIRCUIT MAL-
FUNCTION, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P1570 Antenna <Ref. to GD(H6DO)-193, DTC P1570 ANTENNA, Diagnostic Trouble Code
(DTC) Detecting Criteria.>
P1571 Reference Code Incompatibility <Ref. to GD(H6DO)-193, DTC P1571 REFERENCE CODE INCOMPATIBIL-
ITY, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P1572 IMM Circuit Failure (Except
Antenna Circuit)
<Ref. to GD(H6DO)-193, DTC P1572 IMM CIRCUIT FAILURE (EXCEPT
ANTENNA CIRCUIT), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P1574 Key Communication Failure <Ref. to GD(H6DO)-193, DTC P1574 KEY COMMUNICATION FAILURE,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P1576 EGI Control Module EEPROM <Ref. to GD(H6DO)-193, DTC P1576 EGI CONTROL MODULE EEPROM,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P1577 IMM Control Module EEPROM <Ref. to GD(H6DO)-193, DTC P1577 IMM CONTROL MODULE EEPROM,
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P1578 Meter Failure <Ref. to GD(H6DO)-193, DTC P1578 METER FAILURE, Diagnostic Trouble
Code (DTC) Detecting Criteria.>
P2088 OCV Solenoid Valve Signal A Cir-
cuit Open (Bank 1)
<Ref. to GD(H6DO)-194, DTC P2088 OCV SOLENOID VALVE SIGNAL A
CIRCUIT OPEN (BANK 1), Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P2089 OCV Solenoid Valve Signal A Cir-
cuit Short (Bank 1)
<Ref. to GD(H6DO)-195, DTC P2089 OCV SOLENOID VALVE SIGNAL A
CIRCUIT SHORT (BANK 1), Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P2092 OCV Solenoid Valve Signal A Cir-
cuit Open (Bank 2)
<Ref. to GD(H6DO)-196, DTC P2092 OCV SOLENOID VALVE SIGNAL A
CIRCUIT OPEN (BANK 2), Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P2093 OCV Solenoid Valve Signal A Cir-
cuit Short (Bank 2)
<Ref. to GD(H6DO)-196, DTC P2093 OCV SOLENOID VALVE SIGNAL A
CIRCUIT SHORT (BANK 2), Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P2096 Post Catalyst Fuel Trim System
To o L e a n ( B a n k 1 )
<Ref. to GD(H6DO)-197, DTC P2096 POST CATALYST FUEL TRIM SYS-
TEM TOO LEAN (BANK 1), Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P2097 Post Catalyst Fuel Trim System
To o R i c h ( B a n k 1 )
<Ref. to GD(H6DO)-199, DTC P2097 POST CATALYST FUEL TRIM SYS-
TEM TOO RICH (BANK 1), Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P2098 Post Catalyst Fuel Trim System
To o L e a n ( B a n k 2 )
<Ref. to GD(H6DO)-200, DTC P2098 POST CATALYST FUEL TRIM SYS-
TEM TOO LEAN (BANK 2), Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P2099 Post Catalyst Fuel Trim System
To o R i c h ( B a n k 2 )
<Ref. to GD(H6DO)-200, DTC P2099 POST CATALYST FUEL TRIM SYS-
TEM TOO RICH (BANK 2), Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
DTC Item Index

GD(H6DO)-8
List of Diagnostic Trouble Code (DTC)
GENERAL DESCRIPTION
P2101 Throttle Actuator Control Motor Cir-
cuit Range/Performance
<Ref. to GD(H6DO)-201, DTC P2101 THROTTLE ACTUATOR CONTROL
MOTOR CIRCUIT RANGE/PERFORMANCE, Diagnostic Trouble Code
(DTC) Detecting Criteria.>
P2102 Throttle Actuator Control Motor Cir-
cuit Low
<Ref. to GD(H6DO)-203, DTC P2102 THROTTLE ACTUATOR CONTROL
MOTOR CIRCUIT LOW, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P2103 Throttle Actuator Control Motor Cir-
cuit High
<Ref. to GD(H6DO)-205, DTC P2103 THROTTLE ACTUATOR CONTROL
MOTOR CIRCUIT HIGH, Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P2109 Throttle/Pedal Position Sensor A
Minimum Stop Performance
<Ref. to GD(H6DO)-207, DTC P2109 THROTTLE/PEDAL POSITION SEN-
SOR A MINIMUM STOP PERFORMANCE, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P2122 Throttle/Pedal Position Sensor/
Switch “D” Circuit Low Input
<Ref. to GD(H6DO)-209, DTC P2122 THROTTLE/PEDAL POSITION SEN-
SOR/ SWITCH “D” CIRCUIT LOW INPUT, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P2123 Throttle/Pedal Position Sensor/
Switch “D” Circuit High Input
<Ref. to GD(H6DO)-211, DTC P2123 THROTTLE/PEDAL POSITION SEN-
SOR/ SWITCH “D” CIRCUIT HIGH INPUT, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P2127 Throttle/Pedal Position Sensor/
Switch “E” Circuit Low Input
<Ref. to GD(H6DO)-213, DTC P2127 THROTTLE/PEDAL POSITION SEN-
SOR/ SWITCH “E” CIRCUIT LOW INPUT, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P2128 Throttle/Pedal Position Sensor/
Switch “E” Circuit High Input
<Ref. to GD(H6DO)-215, DTC P2128 THROTTLE/PEDAL POSITION SEN-
SOR/ SWITCH “E” CIRCUIT HIGH INPUT, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P2135 Throttle/Pedal Position Sensor/
Switch “A”/“B” Voltage Rationality
<Ref. to GD(H6DO)-217, DTC P2135 THROTTLE/PEDAL POSITION SEN-
SOR/ SWITCH “A”/“B” VOLTAGE RATIONALITY, Diagnostic Trouble Code
(DTC) Detecting Criteria.>
P2138 Throttle/Pedal Position Sensor/
Switch “D”/“E” Voltage Rationality
<Ref. to GD(H6DO)-219, DTC P2138 THROTTLE/PEDAL POSITION SEN-
SOR/ SWITCH “D”/“E” VOLTAGE RATIONALITY, Diagnostic Trouble Code
(DTC) Detecting Criteria.>
P2227 Barometric Pressure Circuit
Range/Performance
<Ref. to GD(H6DO)-221, DTC P2227 BAROMETRIC PRESSURE CIRCUIT
RANGE/ PERFORMANCE, Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P2228 Barometric Pressure Circuit Low
Input
<Ref. to GD(H6DO)-222, DTC P2228 BAROMETRIC PRESSURE CIRCUIT
LOW INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P2229 Barometric Pressure Circuit High
Input
<Ref. to GD(H6DO)-223, DTC P2229 BAROMETRIC PRESSURE CIRCUIT
HIGH INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
DTC Item Index

GD(H6DO)-15
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
F: DTC P0028 INTAKE VALVE CONTROL SOLENOID CIRCUIT RANGE/PER-
FORMANCE (BANK 2)
NOTE:
For diagnostic procedures, refer to DTC P0026. <Ref. to GD(H6DO)-12, DTC P0026 INTAKE VALVE CON-
TROL SOLENOID CIRCUIT RANGE/PERFORMANCE (BANK 1), Diagnostic Trouble Code (DTC) Detecting
Criteria.>
G: DTC P0030 HO2S HEATER CONTROL CIRCUIT (BANK 1 SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect functional errors of the front oxygen (A/F) sensor heater.
Judge as NG when it is determined that the front oxygen (A/F) sensor impedance is large when looking at en-
gine status such as deceleration fuel cut.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously in 30 seconds after starting the engine.
(1) Gasket (3) Sensor housing (4) Protection tube
(2) Ceramic heater
Secondary Parameters Enable Conditions
Condition established time 30 seconds or more
Battery voltage > 10.9 V
Control duty ≥ 35% Experienced
After fuel cut 20 seconds or more
EN-02181
( 1 )( 2 )
( 3 )( 4 )

GD(H6DO)-16
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
5. DIAGNOSTIC METHOD
Judge as NG when the continuous time of meeting the malfunction criteria below becomes more than the
time needed for diagnosis (10 seconds). Judge as OK and clear NG when the continuous time of not com-
pleting the malfunction criteria below becomes more than the time needed for diagnosis (10 seconds).
Time Needed for Diagnosis: 10 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
6. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITIONS
•When the OK driving cycle is completed 3 times in a row
•When “Clear Memory” is performed
8. FAIL SAFE
•Front oxygen (A/F) sensor main learning compensation: Not allowed to calculate.
•Rear oxygen sensor sub learning compensation: Not allowed to calculate.
•Purge control: Not allowed to purge
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Judgment Value
Malfunction Criteria Threshold Value
Fr o nt ox yg e n ( A / F) s en so r im pe d an c e > 5 0 Ω

GD(H6DO)-17
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
H: DTC P0031 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of heater.
The heater performs duty control, and the output terminal voltage at ON is 0 V and the output terminal voltage
at OFF is the battery voltage.
Judge NG when the terminal voltage remains Low.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge NG when the continuous time until completing the malfunction criteria below becomes more than 1
second (8 cycles).
Time Needed for Diagnosis: 1 second
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
(A) Battery voltage (C) 128 milliseconds (D) Low error
(B) Front oxygen (A/F) sensor heater
output voltage

Secondary Parameters Enable Conditions
Battery voltage≥ 10.9 V
Judgment Value
Malfunction Criteria Threshold Value
Output voltage level Low
Fr o nt ox yg en (A / F ) se ns or h ea t er co n tr o l
duty
< 87.5%
EN-01792
(C)
(A)
(B)
ON
OFF
0V(D)

GD(H6DO)-19
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
I: DTC P0032 HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of heater.
The heater performs duty control, and the output terminal voltage at ON is 0 V and the output terminal voltage
at OFF is the battery voltage.
Judge NG when the terminal voltage remains High.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge NG when the continuous time until completing the malfunction criteria below becomes more than 1
second (8 cycles).
Time Needed for Diagnosis: 1 second
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
(A) Battery voltage (C) 128 milliseconds (D) High malfunction
(B) Front oxygen (A/F) sensor heater
output voltage

Secondary Parameters Enable Conditions
Battery voltage≥ 10.9 V
Judgment Value
Malfunction Criteria Threshold Value
Output voltage level High
Fr o nt ox yg en (A / F ) se ns or h ea t er co n tr o l
duty
≥ 12.5%
EN-01793
(C)
(A)
(B)
ON
OFF
0V
(D)

GD(H6DO)-21
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
J: DTC P0037 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 2)
1. OUTLINE OF DIAGNOSIS
Detect the rear oxygen sensor heater open or short circuit.
The rear oxygen sensor heater performs duty control, and the output terminal voltage at ON is 0 V, and the
output terminal voltage at OFF is the battery voltage.
Judge NG when the terminal voltage remains Low.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously after starting the engine.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge NG when the continuous time until completing all the malfunction criteria below becomes more than
2560 seconds.
Time Needed for Diagnosis: 2.56 second
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
(A) Battery voltage (C) 256 milliseconds (cycles) (D) Low error
(B) Rear oxygen (A/F) sensor heater
output voltage

Secondary Parameters Enable Conditions
Battery voltage > 10.9 V
Judgment Value
Malfunction Criteria Threshold Value
Output voltage level Low
Rear oxygen sensor heater control duty < 75%
EN-01792
(C)
(A)
(B)
ON
OFF
0V(D)

GD(H6DO)-23
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
K: DTC P0038 HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 2)
1. OUTLINE OF DIAGNOSIS
Detect the rear oxygen sensor heater open or short circuit.
The rear oxygen sensor heater performs duty control, and the output terminal voltage at ON is 0 V, and the
output terminal voltage at OFF is the battery voltage.
Judge NG when the terminal voltage remains High.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously after starting the engine.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge NG when the continuous time until completing all the malfunction criteria below becomes more than
2560 seconds.
Time Needed for Diagnosis: 2.56 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
(A) Battery voltage (C) 256 milliseconds (cycles) (D) High malfunction
(B) Rear oxygen (A/F) sensor heater
output voltage

Secondary Parameters Enable Conditions
Battery voltage > 10.9 V
Judgment Value
Malfunction Criteria Threshold Value
Output voltage level High
Rear oxygen sensor heater control duty≥ 15%
EN-01793
(C)
(A)
(B)
ON
OFF
0V
(D)