ON-BOARD DIAGNOSTIC SYSTEM TEST MODE [MZ-CD 1.6 (Y6) (EURO4 emission level)]


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•  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 Freeze Frame Data

•  The freeze frame data consists of data for vehicle and engine control system operation conditions when malfunctions in the engine control system are detected and stored in the PCM.
•  There are modes 2 and 12 in the freeze frame data.
Freeze frame data (mode 2)
•  Freeze frame data is stored at the instant the malfunction indicator lamp illuminates, and only a part of the DTC data is stored.
•  For the freeze frame data, if there are several malfunctions in the engine control system, the data for the malfunction which occurred initially is stored. Thereafter, if a misfire or fuel injection control malfunction occurs, data from the misfire or fuel injection control malfunction is written over the initially stored data. However, if the initially stored freeze frame data is a misfire or fuel injection control malfunction, it is not overwritten.
Freeze frame data (mode 12)
•  The data for DTCs currently detected is stored.
•  The DTC recording timing differs depending on the number of DTC drive cycles.
―  For a DTC with a drive cycle number 1, only the malfunction determination data is recorded.
―  For a DTC with a drive cycle number 2, both the malfunction determination and undetermined data is recorded.

Freeze frame data table (mode2, mode12) table

Freeze frame data item

Unit

Description

Corresponding PID data monitor item

LOAD
%
Calculated engine load
LOAD
ECT
°C
Engine coolant temperature
ECT
MAP
kPa
Manifold absolute pressure
MAP
RPM
RPM
Engine speed
RPM
VS
KPH
Vehicle speed
VSS
IAT
°C
Intake air temperature
IAT
MAF
g/sec
Mass airflow
MAF
FRP
kPa
Fuel pressure
FRP
APP_D
%
Accelerator pedal position No.1
APP1


Sending Emission-related Malfunction Code

•  The DTCs are shown below.

DTC table (PCM)

DTC

DTC Description

MIL

Powertrain warning light

C1994
DSC continuous operation fault
P0033
Air bypass valve actuator control circuit open
ON
P0045
Variable boost control (VBC) solenoid valve control circuit open
ON
P0046
Variable boost control (VBC) solenoid valve range/performance problem
ON
P0047
Variable boost control (VBC) solenoid valve control circuit low input
ON
P0048
Variable boost control (VBC) solenoid valve control circuit high input
ON
P0069
MAP sensor and BARO sensor signal plausibility error
ON
P0087
Fuel rail pressure - too low
P0088
Fuel pressure - too high
ON
P0089
Fuel pressure regulator performance problem
ON
P0097
Intake air temperature (IAT) sensor No.2 circuit low input
P0098
Intake air temperature (IAT) sensor No.2 circuit high input
P0100
Mass air flow (MAF) sensor circuit malfunction
ON
P0101
Mass air flow (MAF) sensor range/performance problem
P0102
Mass air flow (MAF) sensor circuit low input
ON
P0103
Mass air flow (MAF) sensor circuit high input
ON
P0112
Intake air temperature (IAT) sensor No.1 circuit low input
P0113
Intake air temperature (IAT) sensor No.1 circuit high input
P0116
Engine coolant temperature (ECT) sensor range/performance problem
ON
P0117
Engine coolant temperature (ECT) sensor circuit low input
ON
P0118
Engine coolant temperature (ECT) sensor circuit high input
ON
P0121
Accelerator pedal position (APP) sensor No.2 circuit range/performance
ON
P0122
Accelerator pedal position (APP) sensor No.2 signal below lower limit
ON
P0123
Accelerator pedal position (APP) sensor No.2 signal above upper limit
ON
P0182
Fuel temperature sensor circuit low input
P0183
Fuel temperature sensor circuit high input
P0191
Fuel pressure sensor circuit range/performance
ON
P0192
Fuel pressure sensor circuit low input
P0193
Fuel pressure sensor circuit high input
P0201
Fuel injector No.1 control circuit open
ON
P0202
Fuel injector No.2 control circuit open
ON
P0203
Fuel injector No.3 control circuit open
ON
P0204
Fuel injector No.4 control circuit open
ON
P0220
Accelerator pedal position (APP) sensor No.1 signal - signal period too high
ON
P0221
Accelerator pedal position (APP) sensor No.1 signal - signal period too low
ON
P0222
Accelerator pedal position (APP) sensor No.1 signal - low duty cycle
ON
P0223
Accelerator pedal position (APP) sensor No.1 signal - high duty cycle
ON
P022A
Air bypass valve actuator control circuit - excess temperature
ON
P022B
Air bypass valve position sensor circuit low input
ON
P022C
Air bypass valve position sensor circuit high input
ON
P0234
Turbocharger under boost condition
P0237
Manifold absolute pressure (MAP) sensor circuit low input
ON
P0238
Manifold absolute pressure (MAP) sensor circuit high input
ON
P024A
Persistent air bypass valve governor deviation
P024B
Air bypass valve stuck or jammed error
P024E
Air bypass valve actuator control circuit low input
ON
P024F
Air bypass valve actuator control circuit high input
ON
P0251
Fuel metering valve control circuit open
P0252
Fuel metering valve range/performance problem
P0253
Fuel metering valve control circuit low input
P0254
Fuel metering valve control circuit high input
P0299
Turbocharger over boost condition
P0313
Misfire detected with low fuel
P0335
Crankshaft position (CKP) sensor circuit malfunction
ON
P0336
Crankshaft position (CKP) sensor circuit range/performance problem
ON
P0339
Crankshaft position (CKP) sensor circuit intermittent malfunction
ON
P0340
Camshaft position (CMP) sensor circuit malfunction
ON
P0341
Camshaft position (CMP) sensor circuit range/performance problem
ON
P0344
Camshaft position (CMP) sensor circuit intermittent malfunction
ON
P0380
Glow plug circuit malfunction
ON
P0403
EGR valve actuator circuit malfunction
ON
P0404
EGR control circuit range / performance
P0405
EGR valve position sensor circuit low input
ON
P0406
EGR valve position sensor circuit high input
ON
P0407
EGR throttle valve position sensor circuit low input
ON
P0408
EGR throttle valve position sensor circuit high input
ON
P0425
Catalyst exhaust gas temperature sensor signal malfunction
ON
P0427
Catalyst exhaust gas temperature sensor circuit low input
ON
P0428
Catalyst exhaust gas temperature sensor circuit high input
ON
P042E
EGR valve stuck open
ON
ON
P042F
EGR valve stuck closed
ON
P0480
Cooling fan control performance problem
P0483
Cooling fan control circuit performance problem
P0487
EGR throttle valve stuck or jammed error
ON
P0488
EGR throttle valve control circuit range/performance
ON
P0489
EGR control circuit range/performance (swerves to negative side)
P0490
EGR control circuit range/performance (swerves to positive side)
P0500
Vehicle speed signal problem
ON
P0504
Brake switch and brake pedal position signal not plausible
Brake switch not plausible
P0562
System voltage too low
P0563
System voltage too high
P0606
PCM internal processor malfunction
ON
P060B
Internal control module A/D processing performance problem
P0615
Main relay control circuit malfunction
P0616
Main relay control circuit malfunction -short to ground
P0617
Main relay control circuit -short to power supply
P061B
Internal control module - torque calculation performance
P061C
Internal control module - engine RPM performance problem
P0620
Generator control circuit - no load
P062B
Internal control module - fuel injection control performance
ON
P062D
Fuel injector driver circuit performance problem
P0642
Diesel particulate filter differential pressure sensor circuit or MAP sensor circuit low input
ON
P0643
Diesel particulate filter differential pressure sensor circuit or MAP sensor circuit high input
ON
P0645
A/C relay circuit malfunction
P0646
A/C relay circuit low input
P0647
A/C relay circuit high input
P0652
EGR throttle valve position sensor circuit or air bypass valve position sensor circuit or CMP sensor circuit or CKP sensor circuit low input
P0653
EGR throttle valve position sensor circuit or air bypass valve position sensor circuit or CMP sensor circuit or CKP sensor circuit high input
P0691
Cooling fan control circuit low
P0692
Cooling fan control circuit high
P0698
EGR valve position sensor circuit or fuel pressure sensor circuit low input
P0699
EGR valve position sensor circuit or fuel pressure sensor circuit high input
P0704
Clutch pedal position (CPP) switch signal malfunction
P0A3B
Generator control circuit - excess temperature
P1000
OBD systems readiness test not complete
P1101
Mass air flow sensor signal - out of self-test range
ON
P1102
Mass air flow (MAF) sensor in range but lower than expected
P1103
Mass air flow (MAF) sensor in range but higher than expected
P1145
Calculated torque error
ON
P115A
Low fuel level - forced limited power
P115B
Low fuel level - forced engine shutdown
P115D
Mass air flow (MAF) sensor signal offset
P1180
Fuel pressure - too low
P1181
Fuel pressure - too high
P1187
Control module configuration incompatible
ON
P1201
Fuel injector No.1 circuit malfunction
P1202
Fuel injector No.2 circuit malfunction
P1203
Fuel injector No.3 circuit malfunction
P1204
Fuel injector No.4 circuit malfunction
P1244
Generator load high input
P1245
Generator control circuit - short to ground
P1259
Immobilizer system - Immobilizer to PCM signal error
P1260
Immobilizer system theft detected (vehicle immobilized)
P1295
Fuel injector multiple faults
P138A
Glow plug relay control circuit range/performance
P138B
Glow plug relay control system voltage problem
P138C
Air bypass valve position sensor minimum/maximum stop
P1391
Glow plug relay circuit low input
P1392
Glow plug relay circuit high input
P1395
Glow plug relay circuit high open
P1402
EGR metering orifice restricted
P1412
EGR valve frozen - stuck
ON
P1551
Fuel injector No.1 circuit range/performance
P1552
Fuel injector No.2 circuit range/performance
P1553
Fuel injector No.3 circuit range/performance
P1554
Fuel injector No.4 circuit range/performance
P1574
Accelerator pedal position sensor plausibility - signals rate of change do not match
ON
P1577
Accelerator pedal position sensor plausibility - signals do not match
ON
P1602
Immobilizer system problem - fault pass for writing and reading of immobilizer data in EEPROM
P1603
Internal control module - EEPROM error
ON
P1608
PCM internal processor malfunction
ON
P1609
PCM internal processor malfunction - recovery from lock condition
P1621
Immobilizer system code word does not match
P1622
Key ID number does not match
P1630
PCM internal processor malfunction
ON
P1631
Main relay circuit malfunction -too early
P1632
Generator state signal malfunction - invalid data
P1635
Control module configuration data out of range
ON
P1639
Control module configuration incompatible
ON
P1675
Fuel injector data incompatible
ON
P1676
Fuel injector data not programmed
ON
P1934
CAN signal for vehicle speed not valid
ON
P1935
Brake pedal position switch signal through CAN is defective
P1936
Clutch pedal position (CPP) switch signal malfunction
P193B
Accelerator pedal position (APP) sensor No.2 circuit malfunction
ON
P2002
Diesel particulate filter efficiency below threshold
ON
P2141
EGR throttle valve actuator circuit low
ON
P2142
EGR throttle valve actuator circuit high
ON
P2227
BARO sensor range/performance problem
ON
P2228
BARO sensor circuit low input
ON
P2229
BARO sensor circuit high input
ON
P2279
Intake-air system leakage
ON
P242F
Diesel particulate filter restriction - ash accumulation
ON
ON
P2453
Diesel particulate filter differential pressure sensor range/performance problem
ON
P2454
Diesel particulate filter differential pressure sensor circuit low input
ON
P2455
Diesel particulate filter differential pressure sensor circuit high input
ON
P2458
Diesel particulate filter restriction - regeneration duration
P2459
Diesel particulate filter regeneration frequency
P2530
Ignition switch run position circuit malfunction
P2552
Fuel injection limitation - number of injection limited by PCM
P2554
Fuel injection limitation - number of injection limited by fuel delivery quantity balance
P2555
Fuel injection limitation - number of injection limited by capacitor load balance
P2584
Fuel additive control module MIL request
ON
P2585
Fuel additive control module powertrain control warning light request
ON
U0405
Invalid cruise control signal from instrument cluster

DTC table (fuel additive control module)

DTC

Description

MIL

Powertrain warning light

B1317
Fuel additive control module B+ voltage high
B1318
Fuel additive control module B+ voltage low
B1342
Fuel additive control module malfunction
ON
ON
B2477
Fuel additive control module programming error
ON
P1922
Fuel additive level circuit malfunction
ON
P1923
Fuel additive level circuit range/performance
ON
P1927
Fuel additive level too low/empty
ON
P1928
Fuel additive pump control circuit open
ON
P1930
Fuel additive pump control circuit low
ON
P1931
Fuel additive pump control circuit high
ON
P1932
Fuel additive minimum level
ON
P2409
Fuel-filler switch circuit range/performance
P2410
Fuel-filler switch circuit low
ON
P2411
Fuel-filler switch circuit high
ON


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.
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Terminal name

Function

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