KOEO/KOER SELF-TEST [L8, LF, L5]

• On-board diagnosis is performed using the flow pre-set in the PCM, and according to the test execute command sent to the PCM from the external tester.

• If a malfunction is detected as a result of the on-board diagnosis, a DTC is recorded in the PCM.

• Refer to the self-test table for DTCs corresponding to the self-test function.

• The KOEO self-test is a powertrain control system self-diagnosis, performed when the ignition switch is turned to the ON position and the engine is stopped. A KOEO self-test begins when the connected M-MDS sends an execute command to the PCM.

• As the KOEO self-test is performed, the PCM performs the inspection for set DTCs and if a malfunction is detected, the DTC is displayed on the M-MDS.

• The KOER self-test is a powertrain control system self-diagnosis, performed when the ignition is switched to ON and the engine is idling. A KOER self-test begins when the connected M-MDS sends an execute command to the PCM.

• As the KOER self-test is performed, the PCM performs the inspection for set DTCs and if a malfunction is detected the DTC is displayed on the M-MDS.

DTC No.	Condition	Test condition
P0011:00^*1	CMP timing over-advanced	—	×
P0012:00^*1	CMP timing over-retarded	—	×
P0030:00	A/F sensor heater control circuit problem	×	×
P0031:00	A/F sensor heater control circuit low input	×	×
P0032:00	A/F sensor heater control circuit high input	×	×
P0037:00	HO2S heater control circuit low input	×	×
P0038:00	HO2S heater control circuit high input	×	×
P0101:00	MAF sensor circuit range/performance problem	—	—
P0102:00	MAF sensor circuit low input	×	×
P0103:00	MAF sensor circuit high input	×	×
P0107:00	MAP sensor circuit low input	×	×
P0108:00	MAP sensor circuit high input	×	×
P0111:00	IAT sensor circuit range/performance problem	—	—
P0112:00	IAT sensor circuit low input	×	×
P0113:00	IAT sensor circuit high input	×	×
P0117:00	ECT sensor circuit low input	×	×
P0118:00	ECT sensor circuit high input	×	×
P0122:00	TP sensor No.1 circuit low input	×	×
P0123:00	TP sensor No.1 circuit high input	×	×
P0125:00	Insufficient coolant temperature for closed loop fuel control	—	—
P0131:00	A/F sensor circuit low input	×	×
P0132:00	A/F sensor circuit high input	×	×
P0133:00	A/F sensor circuit slow response	—	—
P0134:00	A/F sensor circuit no activity detected	—	×
P0138:00	HO2S circuit high input	×	×
P0140:00	HO2S circuit no activity detected	—	×
P0222:00	TP sensor No.2 circuit low input	×	×
P0223:00	TP sensor No.2 circuit high input	×	×
P0300:00	Random misfire detected	—	×
P0301:00	Cylinder No.1 misfire detected	—	×
P0302:00	Cylinder No.2 misfire detected	—	×
P0303:00	Cylinder No.3 misfire detected	—	×
P0304:00	Cylinder No.4 misfire detected	—	×
P0327:00	KS circuit low input	×	×
P0328:00	KS circuit high input	×	×
P0335:00	CKP sensor circuit problem	—	—
P0340:00	CMP sensor circuit problem	—	—
P0403:00	EGR control circuit problem	×	×
P0420:00^*2	Catalyst system efficiency below threshold	—	—
P0421:00^*3	Warm up catalyst system efficiency below threshold	—	—
P0443:00	Purge solenoid valve circuit problem	×	×
P0480:00	Cooling fan relay No.1 control circuit malfunction	×	×
P0481:00^*4	Cooling fan relay No.2 and No.3 control circuit malfunction	×	×
P0482:00^*5	Cooling fan relay No.2^6, No.4^7 control circuit malfunction	×	×
P0500:00	VSS circuit problem	—	—
P0505:00	IAC system problem	—	×
P0506:00	Idle air control system RPM lower than expected	—	—
P0507:00	Idle air control system RPM higher than expected	—	—
P0571:00^*8	Brake switch circuit problem	—	—
P0579:00^*8	Cruise control multi-function input circuit range/performance	—	—
P0581:00^*8	Cruise control multi-function input circuit high	—	—
P0600:00	Serial communication link	×	×
P0601:00	PCM memory check sum error	×	×
P0602:00	PCM programming error	×	×
P0604:00	PCM random access memory error	×	×
P0606:00	PCM processor	×	×
P0607:00	PCM performance problem	×	×
P0610:00	PCM vehicle configuration error	×	×
P0638:00	Throttle actuator control circuit range/performance problem	—	—
P0661:00^*1	Variable intake air solenoid valve circuit low input	×	×
P0662:00^*1	Variable intake air solenoid valve circuit high input	×	×
P0703:00	Brake switch input circuit problem	—	—
P0704:00^*9	CPP switch input circuit problem	—	—
P0850:00^*9	Neutral switch input circuit problem	—	—
P1260:00	Immobilizer system problem	×	—
P2009:00	Variable tumble solenoid valve circuit low input	×	×
P2010:00	Variable tumble solenoid valve circuit high input	×	×
P2088:00^*1	Oil control valve (OCV) circuit low	×	×
P2089:00^*1	Oil control valve (OCV) circuit high	×	×
P2096:00	Target A/F feedback system too lean	—	—
P2097:00	Target A/F feedback system too rich	—	—
P2100:00	Throttle actuator circuit open	×	×
P2101:00	Throttle valve actuator circuit range/performance	—	×
P2105:00	Throttle actuator control system - forced engine shutdown	×	×
P2107:00	Throttle actuator control module processor error	—	×
P2108:00	Throttle actuator control module performance error	—	×
P2119:00	Throttle actuator control throttle body range/performance problem	—	×
P2122:00	APP sensor No.1 circuit low input	×	×
P2123:00	APP sensor No.1 circuit high input	×	×
P2127:00	APP sensor No.2 circuit low input	×	×
P2128:00	APP sensor No.2 circuit high input	×	×
P2135:00	TP sensor No.1/No.2 voltage correlation problem	×	×
P2138:00	APP sensor No.1/No.2 voltage correlation problem	×	×
P2177:00	Fuel system too lean at off idle	—	×
P2178:00	Fuel system too rich at off idle	—	×
P2187:00	Fuel system too lean at idle	—	×
P2188:00	Fuel system too rich at idle	—	×
P2195:00	A/F sensor signal stuck lean	—	—
P2196:00	A/F sensor signal stuck rich	—	—
P2237:00	A/F sensor positive current control circuit open	×	×
P2251:00	A/F sensor negative current control circuit open	×	×
P2502:00	Charging system voltage problem	—	×
P2503:00	Charging system voltage low	—	×
P2504:00	Charging system voltage high	—	×
P2507:00	PCM B+ voltage low	×	×
P2676:00^*3	Variable air duct (VAD) solenoid valve circuit low input	×	×
P2677:00^*3	Variable air duct (VAD) solenoid valve circuit high input	×	×
U3000:41	PCM processor	×	—

DTC No.

Condition

Test condition

KOEO

KOER

P0011:00^*1

CMP timing over-advanced

—

P0012:00^*1

CMP timing over-retarded

—

P0030:00

A/F sensor heater control circuit problem

P0031:00

A/F sensor heater control circuit low input

P0032:00

A/F sensor heater control circuit high input

P0037:00

HO2S heater control circuit low input

P0038:00

HO2S heater control circuit high input

P0101:00

MAF sensor circuit range/performance problem

—

P0102:00

MAF sensor circuit low input

P0103:00

MAF sensor circuit high input

P0107:00

MAP sensor circuit low input

P0108:00

MAP sensor circuit high input

P0111:00

IAT sensor circuit range/performance problem

—

P0112:00

IAT sensor circuit low input

P0113:00

IAT sensor circuit high input

P0117:00

ECT sensor circuit low input

P0118:00

ECT sensor circuit high input

P0122:00

TP sensor No.1 circuit low input

P0123:00

TP sensor No.1 circuit high input

P0125:00

Insufficient coolant temperature for closed loop fuel control

—

P0131:00

A/F sensor circuit low input

P0132:00

A/F sensor circuit high input

P0133:00

A/F sensor circuit slow response

—

P0134:00

A/F sensor circuit no activity detected

—

P0138:00

HO2S circuit high input

P0140:00

HO2S circuit no activity detected

—

P0222:00

TP sensor No.2 circuit low input

P0223:00

TP sensor No.2 circuit high input

P0300:00

Random misfire detected

—

P0301:00

Cylinder No.1 misfire detected

—

P0302:00

Cylinder No.2 misfire detected

—

P0303:00

Cylinder No.3 misfire detected

—

P0304:00

Cylinder No.4 misfire detected

—

P0327:00

KS circuit low input

P0328:00

KS circuit high input

P0335:00

CKP sensor circuit problem

—

P0340:00

CMP sensor circuit problem

—

P0403:00

EGR control circuit problem

P0420:00^*2

Catalyst system efficiency below threshold

—

P0421:00^*3

Warm up catalyst system efficiency below threshold

—

P0443:00

Purge solenoid valve circuit problem

P0480:00

Cooling fan relay No.1 control circuit malfunction

P0481:00^*4

Cooling fan relay No.2 and No.3 control circuit malfunction

P0482:00^*5

Cooling fan relay No.2^*6, No.4^*7 control circuit malfunction

P0500:00

VSS circuit problem

—

P0505:00

IAC system problem

—

P0506:00

Idle air control system RPM lower than expected

—

P0507:00

Idle air control system RPM higher than expected

—

P0571:00^*8

Brake switch circuit problem

—

P0579:00^*8

Cruise control multi-function input circuit range/performance

—

P0581:00^*8

Cruise control multi-function input circuit high

—

P0600:00

Serial communication link

P0601:00

PCM memory check sum error

P0602:00

PCM programming error

P0604:00

PCM random access memory error

P0606:00

PCM processor

P0607:00

PCM performance problem

P0610:00

PCM vehicle configuration error

P0638:00

Throttle actuator control circuit range/performance problem

—

P0661:00^*1

Variable intake air solenoid valve circuit low input

P0662:00^*1

Variable intake air solenoid valve circuit high input

P0703:00

Brake switch input circuit problem

—

P0704:00^*9

CPP switch input circuit problem

—

P0850:00^*9

Neutral switch input circuit problem

—

P1260:00

Immobilizer system problem

—

P2009:00

Variable tumble solenoid valve circuit low input

P2010:00

Variable tumble solenoid valve circuit high input

P2088:00^*1

Oil control valve (OCV) circuit low

P2089:00^*1

Oil control valve (OCV) circuit high

P2096:00

Target A/F feedback system too lean

—

P2097:00

Target A/F feedback system too rich

—

P2100:00

Throttle actuator circuit open

P2101:00

Throttle valve actuator circuit range/performance

—

P2105:00

Throttle actuator control system - forced engine shutdown

P2107:00

Throttle actuator control module processor error

—

P2108:00

Throttle actuator control module performance error

—

P2119:00

Throttle actuator control throttle body range/performance problem

—

P2122:00

APP sensor No.1 circuit low input

P2123:00

APP sensor No.1 circuit high input

P2127:00

APP sensor No.2 circuit low input

P2128:00

APP sensor No.2 circuit high input

P2135:00

TP sensor No.1/No.2 voltage correlation problem

P2138:00

APP sensor No.1/No.2 voltage correlation problem

P2177:00

Fuel system too lean at off idle

—

P2178:00

Fuel system too rich at off idle

—

P2187:00

Fuel system too lean at idle

—

P2188:00

Fuel system too rich at idle

—

P2195:00

A/F sensor signal stuck lean

—

P2196:00

A/F sensor signal stuck rich

—

P2237:00

A/F sensor positive current control circuit open

P2251:00

A/F sensor negative current control circuit open

P2502:00

Charging system voltage problem

—

P2503:00

Charging system voltage low

—

P2504:00

Charging system voltage high

—

P2507:00

PCM B+ voltage low

P2676:00^*3

Variable air duct (VAD) solenoid valve circuit low input

P2677:00^*3

Variable air duct (VAD) solenoid valve circuit high input

U3000:41

PCM processor

—

*4 :Vehicles equipped with three or four cooling fan relays

*5 :Vehicles equipped with two or four cooling fan relays

*7 :Vehicles equipped with four cooling fan relay