ON-BOARD DIAGNOSTIC OUTLINE [WL-C, WE-C (MT)]

id0302a2100100

•  The on-board diagnostic function allows for detecting malfunctions in the input/output signals when the ignition switch or engine switch is at the ON position.
•  The DLC/DLC-2, which combines the failure detection and detection maintenance connectors, has been adopted to improve serviceability. By connecting a Mazda Modular Diagnostic System (M-MDS) to the DLC/DLC-2, malfunction diagnosis can be carried out.
•  Using a Mazda Modular Diagnostic System (M-MDS), DTCs can be retrieved or erased depending on the screen display, thus improving serviceability.
•  The on-board diagnostic function of remote freewheel (RFW) is controlled by PCM.

Block Diagram

absggn00000277

DTC Table (Related to the RFW)

DTC

Malfunction location

DTC stored in memory
P1812
RFW Lock solenoid valve circuit failure
X
P1813
RFW Lock solenoid valve open circuit
X
P1814
RFW Lock solenoid valve circuit/short to battery
X
P1815
RFW Lock solenoid valve circuit/short to ground
X
P1878
RFW Free solenoid valve circuit failure
X
P1879
RFW Free solenoid valve open circuit
X
P1880
RFW Free solenoid valve circuit/short to battery
X
P1885
RFW Free solenoid valve circuit/short to ground
X


Simulation Item Table (Related to the RFW)

Item

Output part

Operation

Test condition
4WDMODE_L
4x4 indicator light
Off/On
Engine switch at ON
HUBLOCK
RFW lock solenoid valve
Off/On
HUBLOCK_L
RFW free solenoid valve
Off/On
NTFLAMP
RFW indicator light
Off/On