DIAGNOSTIC TEST MODE


BHE010200102T02

• To meet EOBD regulations, the following diagnostic test modes have been adopted.

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 (DTC)
Mode 04
Clearing/resetting emission-related malfunction information
Mode 07
Sending continuous monitoring system test results (pending code)
Mode 09
Request vehicle information

Sending Diagnostic Data

PID data monitor

• The PID data monitor items are shown below.

PID data monitor table

-: Not applicable

Full names

Unit

Fuel system loop status
Refer to list below.
LOAD
%
ECT
°C
°F
Short fuel trim
%
Long fuel trim
%
Engine speed
rpm
Vehicle speed
km/h
mph
Spark advance
°
IAT
°C
°F
MAF
g/s
Absolute TP
%
AIR control status
-
O2S location
-
Input voltage from rear HO2S
V
Target A/F fuel trim
%
OBD requirement according to vehicle design
-
Time since engine start
s
Distance travelled while MIL is activated
km
miles
Purge solenoid valve control signal
%
Fuel tank level
%
Number of warm-ups since DTCs cleared
-
Distance travelled since DTCs cleared
km
miles
BARO
kPa
Lambda
-
Front HO2S output current
mA
Estimated catalyst converter temperature
°C
°F
PCM power supply voltage
V
Absolute load value
%
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 operating: HO2S being used for feedback is normal.
– Feedback stops: ECT is lower than the determined feedback zone.
– Feedback stops: Open loop due to driving condition.
– Feedback stops: Open loop due to detected system fault.

On-board system readiness test

• The items supported by the on-board system readiness test are shown below.
Continuous monitoring system
– HO2S heater
– Fuel system
– Misfire
– CCM
Intermittent monitoring system
– HO2S
– AIR system
– Catalyst

Sending Freeze Frame Data

• The Freeze Frame Data monitor items are shown below.

Freeze Frame Data monitor table

-: Not applicable

Full names

Unit

DTC that caused required Freeze Frame Data storage
-
Fuel system loop status
Refer to list below.
LOAD
%
ECT
°C
°F
Short fuel trim
%
Long fuel trim
%
Engine speed
rpm
Vehicle speed
km/h
mph
Spark advance
°
IAT
°C
°F
MAF
g/s
Absolute TP
%
AIR control status
-
Time since engine start
s
Purge solenoid valve control signal
%
Fuel tank level
%
Number of warm-ups since DTCs cleared
-
Distance travelled since DTCs cleared
km
miles
BARO
kPa
Estimated catalyst converter temperature
°C
°F
PCM power supply voltage
V
Lambda
-
Absolute load value
%
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 operating: HO2S being used for feedback is normal.
– Feedback stops: ECT is lower than the determined feedback zone.
– Feedback stops: Open loop due to driving condition.
– Feedback stops: Open loop due to detected system fault.

Sending Emission-related Malfunction Code

• The DTCs are shown below.

DTC table

×: Applicable
-: Not applicable

DTC No.

Condition

MIL

DC

Monitor item

Memory function

P0030
Front HO2S heater control circuit problem
ON
2
HO2S heater
×
P0031
Front HO2S heater control circuit low
ON
2
HO2S heater
×
P0032
Front HO2S heater control circuit high
ON
2
HO2S heater
×
P0037
Rear HO2S heater control circuit low
ON
2
HO2S heater
×
P0038
Rear HO2S heater control circuit high
ON
2
HO2S heater
×
P0076
VDI solenoid valve control circuit low
OFF
2
CCM
×
P0077
VDI solenoid valve control circuit high
OFF
2
CCM
×
P0101
MAF sensor circuit range/performance problem
ON
2
CCM
×
P0102
MAF sensor circuit low input
ON
1
CCM
×
P0103
MAF sensor circuit high input
ON
1
CCM
×
P0107
BARO sensor circuit low input
ON
1
CCM
×
P0108
BARO sensor circuit high input
ON
1
CCM
×
P0111
IAT sensor circuit range/performance problem
ON
2
CCM
×
P0112
IAT sensor circuit low input
ON
1
CCM
×
P0113
IAT sensor circuit high input
ON
1
CCM
×
P0117
ECT sensor circuit low input
ON
1
CCM
×
P0118
ECT sensor circuit high input
ON
1
CCM
×
P0122
TP sensor No.1 circuit low input
ON
1
CCM
×
P0123
TP sensor No.1 circuit high input
ON
1
CCM
×
P0125
Insufficient coolant temperature for closed loop fuel control
ON
2
CCM
×
P0130
Front HO2S circuit problem
ON
2
HO2S
×
P0131
Front HO2S circuit low voltage
ON
2
HO2S
×
P0132
Front HO2S circuit high voltage
ON
2
HO2S
×
P0133
Front HO2S circuit slow response
ON
2
HO2S
×
P0138
Rear HO2S circuit high voltage
ON
2
HO2S
×
P0139
Rear HO2S circuit slow response
ON
2
HO2S
×
P0171
System too lean
ON
2
Fuel system
×
P0172
System too rich
ON
2
Fuel system
×
P0222
TP sensor No.2 circuit low input
ON
1
CCM
×
P0223
TP sensor No.2 circuit high input
ON
1
CCM
×
P0300
Random misfire detected
Flash/ON
1 or 2
Misfire
×
P0301
Front rotor misfire detected
Flash/ON
1 or 2
Misfire
×
P0302
Rear rotor misfire detected
Flash/ON
1 or 2
Misfire
×
P0327
KS circuit low input
ON
1
CCM
×
P0328
KS circuit high input
ON
1
CCM
×
P0335
Eccentric shaft position sensor circuit problem
ON
1
CCM
×
P0336
Eccentric shaft position sensor circuit range/performance problem
ON
1
CCM
×
P0410
AIR system problem
ON
2
AIR system
×
P0420
Catalyst system efficiency below threshold
ON
2
Catalyst
×
P0443
Purge solenoid valve circuit problem
ON
2
CCM
×
P0461
Fuel gauge sender unit circuit range/performance problem
ON
2
CCM
×
P0462
Fuel gauge sender unit circuit low input
ON
2
CCM
×
P0463
Fuel gauge sender unit circuit high input
ON
2
CCM
×
P0480
Cooling fan No.1 control circuit problem
OFF
2
Other
×
P0481
Cooling fan No.2 control circuit problem
OFF
2
Other
×
P0500
VSS circuit problem
ON
2
CCM
×
P0505
Idle air control system problem
OFF
P0562
System voltage low (KAM)
ON
1
CCM
×
P0564
Cruise control switch input circuit problem
OFF
1
Other
×
P0571
Brake switch input circuit problem
OFF
1
Other
×
P0601
PCM memory check sum error
ON
1
CCM
×
P0602
PCM programming error
ON
1
CCM
×
P0604
PCM random access memory error
ON
1
CCM
×
P0610
PCM vehicle options error
ON
1
CCM
×
P0638
Throttle actuator control circuit range/performance problem
ON
1
CCM
×
P0661
SSV solenoid valve control circuit low
ON
2
CCM
×
P0662
SSV solenoid valve control circuit high
ON
2
CCM
×
P0703
Brake switch No.1 input circuit problem
ON
2
CCM
×
P0704
CPP switch input circuit problem
ON
2
CCM
×
P0850
Neutral switch input circuit problem
ON
2
CCM
×
P1260
Immobilizer system problem
OFF
1
Other
P1574
TP sensor output incongruent
ON
1
CCM
×
P1577
APP sensor output incongruent
ON
1
CCM
×
P1686
Metering oil pump control circuit low flow side problem
ON
1
Other
×
P1687
Metering oil pump control circuit high flow side problem
ON
1
Other
×
P1688
Metering oil pump control circuit initial check problem
ON
1
Other
×
P2006
APV motor control circuit IC problem
ON
2
CCM
×
P2008
APV motor control circuit/open
ON
2
CCM
×
P2096
Target A/F feedback system too lean
ON
2
Fuel system
×
P2097
Target A/F feedback system too rich
ON
2
Fuel system
×
P2101
Drive-by-wire relay control circuit problem
ON
1
CCM
×
P2106
Throttle actuator control system-forced limited power
ON
1
CCM
×
P2107
Throttle actuator control module processor error
ON
1
CCM
×
P2108
Throttle actuator control module performance error
ON
1
CCM
×
P2109
TP sensor minimum stop range/performance problem
ON
1
CCM
×
P2112
Throttle actuator control system range/performance problem
ON
1
CCM
×
P2119
Throttle actuator control throttle body range/performance problem
ON
2
CCM
×
P2122
APP sensor No.1 circuit low input
ON
1
CCM
×
P2123
APP sensor No.1 circuit high input
ON
1
CCM
×
P2127
APP sensor No.2 circuit low input
ON
1
CCM
×
P2128
APP sensor No.2 circuit high input
ON
1
CCM
×
P2135
TP sensor No.1/No.2 voltage correlation problem
ON
1
CCM
×
P2136
TP sensor No.1/No.3 voltage correlation problem
ON
1
CCM
×
P2138
APP sensor No.1/No.2 voltage correlation problem
ON
1
CCM
×
P2195
Front HO2S signal stuck lean
ON
2
HO2S
×
P2196
Front HO2S signal stuck rich
ON
2
HO2S
×
P2257
AIR pump relay control circuit low
ON
2
CCM
×
P2258
AIR pump relay control circuit high
ON
2
CCM
×
P2259
AIR solenoid valve control circuit low
ON
2
CCM
×
P2260
AIR solenoid valve control circuit high
ON
2
CCM
×
P2270
Rear HO2S signal stuck lean
ON
2
HO2S
×
P2271
Rear HO2S signal stuck rich
ON
2
HO2S
×
P2502
Charging system voltage problem
OFF
1
Other
×
P2503
Charging system voltage low
OFF
1
Other
×
P2504
Charging system voltage high
OFF
1
Other
×

Sending Continuous Monitoring System Test Results

• 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 problem is not found in the second drive cycle, 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.

DLC-2 Outline

• The DLC-2 located in the driver compartment is a service connector defined by EOBD regulations.

• The following are functions for each terminal.

Terminal name

Function

B+
Battery positive voltage
CAN_H
CAN communication line
CAN_L
CAN communication line
GND1
Ground (chassis)
GND2
Ground (signal)