ON-BOARD DIAGNOSTIC SYSTEM TEST MODE [L8, LF, L5]

id010242142500

•  To match the OBD regulations, the following diagnostic test modes have been supported.

Diagnostic test mode

Item
Mode 01
Sending diagnostic data (PID data monitor/On-board system readiness test)
Mode 02
Sending freeze frame data
Mode 03
Sending emission-related malfunction code (Diagnostic trouble code:DTC)
Mode 04
Clearing/resetting emission-related malfunction information
Mode 06
Sending intermittent monitoring system test results (DMTR)
Mode 07
Sending continuous monitoring system test results (pending code)
Mode 09
Request vehicle information


Sending Diagnostic Data (Mode 01)


PID data monitor

•  The PID data monitor items are shown below.

PID data monitor table

Full names

Unit
Fuel system loop status
Refer to list below.
LOAD
%
ECT
°C
°F
Short term fuel trim
%
Long term fuel trim
%
MAP
kPa
Engine speed
rpm
Vehicle speed
km/h
mph
Spark advance
°
IAT
°C
°F
MAF
g/s
Absolute TP
%
A/F sensor, HO2S location
No unit
Input voltage from HO2S
V
Short term fuel trim associated with HO2S
%
OBD requirement according to vehicle design
No unit
Time since engine start
s
Distance travelled while MIL is activated
km
miles
EGR valve control signal
%
Purge solenoid valve control signal
%
Number of warm-ups since DTCs cleared
No unit
Distance travelled since DTCs cleared
km
miles
Lambda
—
A/F sensor output current
mA
Estimated catalyst converter temperature
°C
°F
PCM voltage
V
Absolute load value
%
Theoretical air/fuel ratio coefficient to calculate target air/fuel ratio
No unit
Relative TP
%
TP from TP sensor No.2
%
APP from APP sensor No.1
%
APP from APP sensor No.2
%
Throttle actuator control signal
%

Meaning of fuel system loop status
•  The following information is displayed on the tester.
―  Feedback stops: ECT is lower than the determined feedback zone.
―  Feedback operating: A/F sensor, HO2S being used for feedback is normal.
―  Feedback stops: Open loop due to driving condition
―  Feedback stops: Open loop due to detected system fault
―  Feedback operating: Malfunction occurred in HO2S system


On-board system readiness test

•  The items supported by the on-board system readiness test are shown below.
Continuous monitoring system
―  Fuel system
―  Misfire
―  CCM
―  A/F sensor heater
―  HO2S heater
Intermittent monitoring system
―  A/F sensor
―  HO2S
―  Catalyst


Sending Freeze Frame Data (Mode 02)

•  The Freeze Frame Data monitor items are shown below.

Freeze frame data monitor table

Full names

Unit
DTC that caused required Freeze Frame Data storage
No unit
Fuel system loop status
Refer to list below.
LOAD
%
ECT
°C
°F
Short term fuel trim
%
Long term fuel trim
%
MAP
kPa
Engine speed
rpm
Vehicle speed
km/h
mph
Spark advance
°
IAT
°C
°F
MAF
g/s
Absolute TP
%
Time since engine start
s
EGR valve control signal
%
Purge solenoid valve control signal
%
Number of warm-ups since DTCs cleared
No unit
Distance travelled since DTCs cleared
km
miles
Estimated catalyst converter temperature
°C
°F
PCM voltage
V
Absolute load value
%
Theoretical air/fuel ratio coefficient to calculate target air/fuel ratio
No unit
Relative TP
%
TP from TP sensor No.2
%
APP from APP sensor No.1
%
APP from APP sensor No.2
%
Throttle actuator control signal
%

Meaning of fuel system loop status
•  The following information is displayed on the tester.
―  Feedback stops: ECT is lower than the determined feedback zone.
―  Feedback operating: A/F sensor, HO2S being used for feedback is normal.
―  Feedback stops: Open loop due to driving condition
―  Feedback stops: Open loop due to detected system fault
―  Feedback operating: Malfunction occurred in HO2S system

Sending Emission-related Malfunction Code (DTC) (Mode 03)

•  The DTCs are shown below.

×: Applicable
—: Not applicable

DTC No.

Condition

MIL

Generator warning light

DC

Monitor item

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

*1  :LF, L5
*2  :L8, LF
*3  :L5
*4  :Vehicles equipped with three or four cooling fan relays
*5  :Vehicles equipped with two or four cooling fan relays
*6  :Vehicles equipped with two cooling fan relay
*7  :Vehicles equipped with four cooling fan relay
*8  :Vehicles equipped with cruise control switch
*9  :MTX

Sending Continuous Monitoring System Test Results (pending code) (Mode 07)

•  These appear when a problem is detected in a monitored system.

1-drive cycle type

•  If any problems are detected in the first drive cycle, pending codes will be stored in the PCM memory, as well as DTCs.
•  After pending codes are stored, if the PCM determines that the system is normal in any future drive cycle, the PCM deletes the pending codes.


2-drive cycle type

•  The code for a failed system is stored in the PCM memory in the first drive cycle. If the PCM determines that the system returned to normal or the problem was mistakenly detected, and deletes the pending code. If the problem is found in the second drive cycle too, the PCM determines that the system has failed, and stores the pending codes, and the DTCs.
•  After pending codes are stored, if the PCM determines that the system is normal in any future drive cycle, the PCM deletes the pending codes.