Mazda RX-8 Workshop Manual page 1914

position.
Disconnect the TCM connector.
Inspect for poor connection at TCM
terminals 1R and 1E (such as
damaged/pulled-out pins, corrosion).
Are terminals normal?
INSPECT LINE PRESSURE CONTROL SOLENOID
4 CIRCUIT FOR SHORT TO POWER SUPPLY
Turn the ignition switch to the ON
position (engine off).
Measure the voltage at TCM (wiring
harness-side) terminals 1R and 1E.
Is there 0 V at the TCM wiring harness-
side connector terminals?
INSPECT LINE PRESSURE CONTROL SOLENOID
5
CIRCUIT FOR SHORT TO POWER SUPPLY
Turn the ignition switch to the LOCK
position.
Disconnect the couple component
connector.
Turn the ignition switch to the ON
position (engine off).
Measure the voltage at TCM (wiring
harness-side) terminals 1R and 1E.
Is there 0 V at the TCM wiring harness-
side connector terminals?
INSPECT LINE PRESSURE CONTROL SOLENOID
6
Inspect the line pressure control
solenoid.
(See SOLENOID VALVE INSPECTION
[SJ6A-EL].)
Is the line pressure control solenoid
normal?
VERIFY TROUBLESHOOTING OF DTC P0963
7
COMPLETED
Make sure to reconnect all the
disconnected connectors.
Clear the DTC from the memory using
the M-MDS.
Drive the vehicle in D range and make
sure that gears shift smoothly from 1GR
to 6GR.
Is same DTC present?
VERIFY AFTER REPAIR PROCEDURE
8
Perform the "After Repair Procedure".
(See AFTER REPAIR PROCEDURE [SJ6A-
EL].)
No Repair or replace the connector and/or terminal, then go to Step 7.
YesGo to go to Step 7.
No Go to the next step.
YesGo to the next step.
No Repair or replace the wiring harness (TCM—couple component
connector) for short to power supply, then go to Step 7.
YesRepair or replace the wiring harness (couple component connector—
line pressure control solenoid) for short to power supply, then go to
the next step.
No Replace the control valve body, then go to the next step.
(See CONTROL VALVE BODY REMOVAL
(See CONTROL VALVE BODY INSTALLATION
YesReplace the TCM, then go to the next step.
(See TCM REMOVAL/INSTALLATION
No Go to the next step.
YesGo to the applicable DTC inspection.
(See DTC TABLE [SJ6A-EL].)
[SJ6A-EL].)
[SJ6A-EL].)
[SJ6A-EL].)