Mazda 6 Service Manual: Procedures for determining the location of a malfunction
System Wiring Diadram
PCM
1. Check the display of DTC U0121 and/or U0155, using the SST
(WDS or equivalent). (See DTC TABLE.)
2. Referring to the following table, determine the malfunctioning part of the CAN system.
ABS/TCS HU/CM or DSC HU/CM
1. Accec and monitor the PCM MSG and IC MSGof PID using the SST
(WDS or equivalent).
2. Referring to the PID/DATA MONITOR, confirm the display status of the PID. (See PID/DATA MONITOR TABLE.)
3. Referring to the following table, determine the malfunctioning part of the CAN system.
Instrument Cluster
1. Accec and monitor the PCM MSG and ABS MSG of PID using the SST
(WDS or equivalent).
2. Referring to the PID/DATA MONITOR, confirm the display status of the PID. (See PID/DATA MONITOR TABLE.)
3. Referring to the following table, determine the malfunctioning part of the CAN system.
Dtc u0073, u1900, u2516
Diagnostic procedure
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Other materials:
Mazda 6 Service Manual: Towing Description
We recommend that towing be done only by an Authorized Mazda Dealer or a commercial
tow-truck service.
Proper lifting and towing are necessary to prevent damage to the vehicle. Government
and local laws must be followed.
A towed vehicle usually should have its drive wheels (front wheels) off t ...
Mazda 6 Service Manual: Abs (abs/tcs) hu/cm inspection
1. Disconnect the negative battery cable.
2. Connect the SST between the ABS (ABS/TCS) HU/CM and harness
connector with the ignition switch off.
3. Attach the tester leads to the SST and inspect voltage referring
the table below.
Terminal Voltage Table (Reference)
(Engine is idling, and co ...