1. Remove the battery and battery bracket.
2. Disconnect the DSC HU/CM connector.
3. Connect the SST
(49 G066 004) to the DSC HU/CM connector and harness side connector.
4. Inspect voltage referring the table below.
Terminal Voltage Table (reference value)
(Ignition switch is at ON, and connector is connected unless indicated otherwise.)
* : Used for vehicle manufacturing, not used for DSC.
Inspection Using An Oscilloscope (Reference)
Steering angle (steering angle signal 1 and 2)
Steering angle signal 2 : W ( + ) - R ( - )
Steering angle signal 1 : X ( + ) - R ( - )
1 V/DIV (Y), 25 ms/DIV (X), DC range
Note
Wheel speed
RF : M ( + ) - I ( - )
RR : K ( + ) - H ( - )
LF : F ( + ) - J ( - )
LR : Q ( + ) - N ( - )
1 V/DIV (Y), 2 ms/DIV (X), AC range
Note
Vehicle speed output
1 V/DIV (Y), 5 ms/DIV (X), DC range
Note
Mazda 6 Service Manual: No.1 abs warning light, brake system warning light, tcs off light do not
illuminate with ignition switch on
Vehicle with ABS/TCS
When performing an asterisked (*) troubleshooting inspection, shake the
wiring harness and connectors while doing the inspection to discover whether
poor contact points are the cause of any intermittent malfunction. If there
is a problem, check to make sure conn ...
Mazda 6 Service Manual: Steering wheel and column inspection
Steering Wheel Play Inspection
With the wheels in the straight-ahead position, gently turn the steering
wheel to the left and right and verify that the play is within the
specification.
If the play exceeds the specification, either the steering joints are
worn or the backlash of the stee ...