Mazda RX-8 Manual page 1102

NO.3 VEHICLE DOES NOT MOVE IN D AND M RANGES
3 Vehicle does not move in D and M ranges
DESCRIPTION
POSSIBLE
CAUSE
NOTE:
Diagnostic procedure
STEP INSPECTION
With the ignition switch at the ON
position, does the gear position
1 indicator light indication
correspond to the selector lever
position?
Disconnect the TCM connector.
Is the resistance between ground
2
terminal 2M or 2Q at the TCM
connector and body ground 5.0
ohms or less ?
Inspect shift solenoid A and
pressure control solenoid circuit.
3
(See SOLENOID VALVE
INSPECTION .)
Are they normal?
Vehicle does not move in D and M ranges.
•
Vehicle moves in R position.
•
Clutch slippage (low clutch, low one-way clutch, low and reverse brake).
•
In the event of clutch slippage, a DTC (incorrect gear ratio) is output.
Shift solenoid A or related circuit malfunction
•
Shift solenoid A hydraulic circuit clogging
•
Control valve body malfunction (improper operation, stuck, clogged oil passage).
•
Before following the troubleshooting steps, make sure that the Automatic
•
Transmission On-Board Diagnostic and Automatic Transmission Basic Inspection
are conducted. (See BASIC INSPECTION .)
Yes Go to the next step.
No
Yes Go to the next step.
No Repair open ground circuit.
Yes
ACTION
Go to No.29 "GEAR POSITION INDICATOR LIGHT DOES
NOT ILLUMINATE IN M RANGE", or No.30 "GEAR
POSITION INDICATOR LIGHT ILLUMINATES IN D
RANGE OR P, N, R POSITIONS".
Overhaul the control valve body and repair or replace any
malfunctioning parts.
(See TCM REMOVAL/INSTALLATION .)
(w) RX-8 Transmission (Manual & Auto)
Page 77