Mazda RX-8 Workshop Manual page 2076

NOTE:
Diagnostic procedure
STEP
1 With the ignition switch at
the ON position, does the
gear position indicator light
indication corresponded to
the selector lever position?
2 Access the following PCM
PIDs using the M-MDS.
Are PIDs value normal?
4GR or 5GR is fixed (Operation in fail-safe function)
TFT sensor malfunction
TR switch malfunction
TCM malfunction
If a tire of a different diameter from the standard tire is installed, the TCM
determines that the driving mode is the AAS mode, and may change to a
different shift timing from the normal timing.
INSPECTION
RPM
APP
ECT
malfunction
Shift solenoid F malfunction
Shift solenoid G malfunction
Control valve body malfunction
Short or open circuit in wiring harness
Poor connection of connector
Poor ground of shift solenoid
Malfunction of electronic parts of output
and input system
YesGo to the next step.
No Go to No.27 "GEAR POSITION INDICATOR LIGHT
DOES NOT ILLUMINATE IN M RANGE", or No.28
"GEAR POSITION INDICATOR LIGHT ILLUMINATES
IN D RANGE OR P, N, R POSITIONS".
YesGo to the next step.
No Inspect and repair suspected PID related part.
ACTION