Mazda 2: Determining Malfunctioning Part (HS-CAN) [Multiplex Communication System]
Mazda 2 2007-2014 Service Manual / Body and Accessories / Determining Malfunctioning Part (HS-CAN) [Multiplex Communication System]
CAUTION:
- If the malfunctioning part is detected in the communication line, before disconnecting the related connector for inspection, press the connector in the connection direction to verify that there is no looseness or disconnection.
- When disconnecting the connector, verify that there is no damage, deformation, or corrosion of the connector terminals.
1. Verify the CAN system-related module DTCs and the failed module using the M-MDS.
2. Look for a DTC display pattern and failed module display pattern in tandem which match.
NOTE:
- A hyphen (-) in the DTC output pattern table indicates that the DTC may
be displayed depending on the
malfunction detection conditions. If only an (
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M-MDS and Vehicle Not Communicating [Multiplex Communication System]
CAUTION:
Perform the following on-board diagnosis according to FOREWORD
[MULTIPLEX COMMUNICATION SYSTEM] troubleshooting
procedure.
Detection Condition
Possible causes of communication errors
ON-Board Diagnostic Wiring Diagram [Instrument Cluster]
DTC INSPECTION [Instrument Cluster]
1. Connect the M-MDS (IDS) to the DLC-2.
2. After the vehicle is identified, select the following items from the
initialization screen of
the IDS.
Select "S
DTC Table [Instrument Cluster]
*1 Vehicles with tire pressure monitoring system
*2 ATX
DTC B1A84:41/U0300:00
Diagnostic Procedure
DTC B1A84:51/U2100:00
Diagnostic Procedure
DTC P0070:14
System Wiring Diagram
Diagnostic P
SEE MORE:
Winter Driving
Carry emergency gear, including tyre
chains, window scraper, fl ares, a small
shovel, jumper leads, and a small bag of
sand or salt.
Ask an expert repairer, we recommend an
Authorised Mazda Repairer to check the
following:
Have the proper ratio of antifreeze in the
radiator.
Brake Fluid
BRAKE FLUID INSPECTION
1. Verify that the brake fluid level in the reserve tank is between the MAX
and MIN marks.
If the brake fluid level is below the MIN mark, add brake fluid.
BRAKE FLUID AIR BLEEDING
CAUTION:
Keep the fluid level in the reservoir at 3/4 full or more during the air
blee
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