Mazda 2: OBD-II Drive Mode
- Using the OBD-II Drive Mode, the monitoring item requested by OBD-II
regulations can be easily diagnosed.
- Performing the Drive Mode inspects the OBD-II system for proper
operation and must be performed to ensure that no additional
DTCs are present.
- The OBD-II Drive Mode is divided into the specific Drive Mode and single
Drive Mode.
- For the specific Drive Mode, specified Drive Modes have been set for
each individual monitoring item requested by OBD-II
regulations, and they can be diagnosed individually. For the single Drive
Mode, the entire monitoring item requested by OBD-II
regulations can be diagnosed.
- The following modes are in the specific Drive Mode. The applicable
system is diagnosed by driving in the following Drive Modes.
- Mode 03 (EGR System, A/F Sensor Heater, HO2S Heater, A/F Sensor,
HO2S and TWC Repair Verification Drive
Mode)
- Mode 06 (EVAP System Repair Verification Drive Mode)
- The following systems are diagnosed with the single Drive Mode.
- EGR system
- Oxygen sensor (A/F sensor, HO2S)
- Oxygen sensor heater (A/F sensor heater, HO2S heater)
- Catalytic converter (TWC)
- Evaporative (EVAP) system
- OCV (variable valve timing control)
CAUTION:
- While performing the Drive Mode, always operate the vehicle in a safe
and lawful manner.
- When the M-MDS is used to observe monitor system status while driving,
be sure to have another technician with you, or record
the data in the M-MDS using the PID/DATA MONITOR AND RECORD function and
inspect later.
NOTE:
- Vehicle speed and engine speed detected by the PCM may differ from that
indicated by the speedometer and tachometer. Use the
M-MDS to monitor vehicle speed.
- If the OBD-II system inspection is not completed during the Drive Mode,
the following causes are considered:
- The OBD-II system detects the malfunction.
- The Drive Mode procedure is not completed correctly.
- Disconnecting the battery will reset the memory. Do not disconnect the
battery during and after Drive Mode.
- The M-MDS can be used at anytime through the course of the Drive Mode to
monitor the completion status. Monitoring can be
done by viewing the ON BOARD SYSTEM READINESS menu.
- The OBD monitoring status can be confirmed with the ignition switch
operation. During KOEO, the MIL illuminates for a fail-light
inspection for approx. 17 s. The OBD monitoring status is confirmed after
the fail-light inspection.
- If all of the diagnosis is completed even one time, the MIL will
continue to illuminate.
- If all of the diagnosis is not completed, the MIL flashes for
approx. 7 s, and then it illuminates until the engine
is started.
Mode 03 (EGR System, A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and
TWC Repair Verification Drive Mode)
1. Start the engine and warm it up completely.
2. Verify all accessory loads (A/C, headlights, blower fan, rear window
defroster) are off.
3. Drive the vehicle as shown in the graph. The driving conditions before
driving at constant speed are not specified.

4. Stop the vehicle and access the ON BOARD SYSTEM READINESS menu of GENERIC
OBD-II FUNCTION to verify the OBD monitoring
status.
- If completed, the OBD monitoring status items change from non-completed
to completed.
- If not completed, switch the ignition to off then repeat from Step 4.
5. Access the DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD-II
FUNCTIONS to verify the monitor results.
- If detected values are not within the specification, repair has not been
completed.
6. Verify no DTCs are available.
Mode 06 (EVAP System Repair Verification Drive Mode)
NOTE:
- If "EVAP System Repair Verification Drive Mode" cannot be performed (it
is impossible to drive the vehicle under this Drive Mode condition), perform
evaporative system test procedure as an alternative. (See ENGINE CONTROL
SYSTEM OPERATION INSPECTION).
1. Verify that all of the following PIDs are within the following
specifications. All PIDs must be within specifications before engine is
started to initiate the evaporative system test.
- BARO: 72.2 kPa {542 mmHg, 21.3 inHg} or higher
- FLI: 15-85 %
- IAT: 5-35
READ NEXT:
Confirm trouble symptom using the following diagnostic index, then go to
appropriate
troubleshooting chart.
Diagnostic Index
CONTROL SYSTEM DEVICE AND CONTROL RELATIONSHIP CHART
Vibration Method
1. If malfunction occurs or becomes worse while driving on a rough road or
when engine is
vibrating, perform the steps below.
NOTE:
There are several reasons vehicle or engine vibr
SEE MORE:
BEFORE SERVICE PRECAUTION
WARNING:
Fuel vapor is hazardous. It can very easily ignite, causing serious
injury and damage.
Always keep sparks and flames away from fuel.
Fuel line spills and leakage from the pressurized fuel system are
dangerous. Fuel can
ignite and cause serious injury or d
The rear window defogger clears fog from
the rear window.
The ignition must be switched ON to use
the defogger.
Press the switch to turn on the rear
window defogger. The rear window
defogger operates for about 15 minutes
and then turns off automatically.
The indicator light illuminates
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