DIAGNOSTIC TEST MODE [L3 R.H.D.]

BUE010200000N02

• 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 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

PID data monitor

• The PID data monitor items are shown below.

PID data monitor table

Support item

Unit

Monitor status since DTCs cleared
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
%
O2S location
No unit
Input voltage from HO2S
V
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
Estimated catalyst converter temperature
°C
°F
Monitor status this DC
No unit
PCM voltage
V
Absolute load value
%
Commanded equivalence ratio
No unit
Relative TP
%

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: HO2S being used for feedback is normal.
- 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
- Catalyst

Sending Freeze Frame Data

• The Freeze Frame Data monitor items are shown below.

Freeze Frame Data monitor table

Support item

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
%
Commanded equivalence ratio
No unit
Relative TP
%

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: HO2S being used for feedback is normal.
- 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

Memory function

P0031
HO2S heater circuit low input
ON
2
×
P0032
HO2S heater circuit high input
ON
2
×
P0102
MAF sensor circuit low input
ON
1
×
P0103
MAF sensor circuit high input
ON
1
×
P0107
MAP sensor circuit low input
ON
1
×
P0108
MAP sensor circuit high input
ON
1
×
P0112
IAT sensor circuit low input
ON
1
×
P0113
IAT sensor circuit high input
ON
1
×
P0117
ECT sensor circuit low input
ON
1
×
P0118
ECT sensor circuit high input
ON
1
×
P0122
TP sensor circuit low input
ON
1
×
P0123
TP sensor circuit high input
ON
1
×
P0132
HO2S circuit high input
ON
2
×
P0134
HO2S no activity detected
ON
2
×
P0327
KS circuit low input
ON
1
×
P0328
KS circuit high input
ON
1
×
P0335
CKP sensor circuit problem
ON
1
×
P0340
CMP sensor circuit problem
ON
1
×
P0351
Ignition coil No.1 and No.4 control circuit problem
ON
2
×
P0352
Ignition coil No.2 and No.3 control circuit problem
ON
2
×
P0403
EGR valve (stepper motor) circuit problem
ON
2
×
P0443
Purge solenoid valve circuit problem
ON
2
×
P0480
Cooling fan control circuit problem
OFF
1
×
P0505
IAC system problem
OFF
-
-
P0511
IAC valve circuit problem
ON
1
×
P0602
PCM programming error
ON
1
×
P0610
PCM vehicle options error
ON
1
×
P0661
Variable intake-air solenoid valve circuit low input
OFF
1
×
P0662
Variable intake-air solenoid valve circuit high input
OFF
1
×
P2009
Variable tumble solenoid valve circuit low input
ON
2
×
P2010
Variable tumble solenoid valve circuit high input
ON
2
×
P2177
Fuel system too lean at off idle
ON
2
×
P2178
Fuel system too rich at off idle
ON
2
×
P2187
Fuel system too lean at idle
ON
2
×
P2188
Fuel system too rich at idle
ON
2
×
P2195
HO2S signal stuck lean
ON
2
×
P2196
HO2S signal stuck rich
ON
2
×
P2502
Charging system voltage problem
OFF
1
×
P2503
Charging system voltage low
OFF
1
×
P2504
Charging system voltage high
OFF
1
×
P2507
PCM B+ voltage low
ON
1
×

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 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)