On-Board Diagnostic; Outline; Control Devices And Monitoring System Relationship Chart - Mazda 6 Training Manual

OUTLINE

• The construction and operation of the on-board diagnostic system is essentially carried over from that of the
current MPV (LW) GY/FS engine model, ecept for the following. (See MPV Workshop Manual supplement
1700-1*-00H.)
— DTCs, PID monitoring items, and simulation items have been changed to match the regulations. For the
detail information of the regulations, refer to the “OBD Training Manual (3345-1E-00B).”
— KOEO/KOER self-test function has been adopted. Therefore, the present malfunction or a successful
repair is readily confirmed.
— Pending code storage process has been changed as follows.
1 drive cycle type
• With the current MPV (LW) GY/FS engine model, pending codes are not available. With the new
Mazda6 (GG), however, pending code is stored in the PCM during the drive cycle
2 drive cycle type
• With the current MPV (LW) GY/FS engine model, pending codes are deleted when a DTC is stored.
With the new Mazda6 (GG), however, even if a DTC is stored, the PCM does not delete the pending
code until a normal (malfunction repaired) condition judgement is made.
— The conditions by which the MIL for the second drive cycle type illuminates have been changed as follows.
New Mazda6 (GG)
• PCM determines that there is a malfunction in the first drive cycle when a DTC that has been stored in
the PCM during previous drive cycles is detected.
Current MPV (LW) GY/FS engine model
• PCM determines that there is a malfunction in the second drive cycle.
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CONTROL DEVICES AND MONITORING SYSTEM RELATIONSHIP CHART

Monitoring System
Component
Input
CKP sensor
CMP sensor
VSS
MAF sensor
ECT sensor
IAT sensor
TP sensor
Rear HO2S
Front HO2S
Output
DLC-2
MIL
Purge solenoid valve
Fuel injectors
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F–40

ON-BOARD DIAGNOSTIC

ON-BOARD DIAGNOSTIC
Catalyst Misfire
× ×
× ×
×
× ×
× ×
× ×
× ×
×
×
× ×
× ×
Monitor item
Fuel system Oygen sensor
×
×
×
×
×
×
×
×
×
×
×
×
A6E397018881T01
A6E397018881T02
×: Applicable
Oygen sensor
heater
× ×
× ×
×
× ×
× ×
×
×
× ×
× ×
× ×
× ×
×