- Turn the ignition switch to the LOCK
position.
- Disconnect the AT solenoid valve
connector.
- Apply battery voltage to the AT
solenoid valve connector terminals.
TCC solenoid valve: G
pressure control solenoid valve:
A
- Verify the click sounds of the TCC
solenoid valve and pressure control
solenoid valve.
- Are there click sounds?
No
Replace the TCC solenoid valve or the pressure
control solenoid valve, then go to Step 9.
(See CONTROL VALVE BODY REMOVAL .)
(See CONTROL VALVE BODY
INSTALLATION .)
Yes Go to the next step.
7
INSPECT DIFFERENCE BETWEEN
ENGINE SPEED AND TURBINE SPEED
- Inspect difference between the engine
speed and turbine speed during TCC
operation in 4GR.
- Drive the vehicle under the following
conditions:
TR switch position: D range
Gear position: 4GR
TCC solenoid valve: ON
- Is difference between the engine speed
(RPM PID) and turbine speed normal?
Difference
99 rpm or less
No
Replace the torque converter, then go to Step 9.
(See AUTOMATIC TRANSMISSION
REMOVAL/INSTALLATION .)
Yes
Replace the torque converter, then go to the next
step.
8
INSPECT OPERATION OF EACH VALVE
AND SPRING
- Remove the control valve body.
- Disassemble the control valve body.
- Is operation of each valve and return
spring normal?
No
Replace the control valve body, then go to the
next step.
(See CONTROL VALVE BODY REMOVAL .)
(See CONTROL VALVE BODY
INSTALLATION .)
9 VERIFY TROUBLESHOOTING OF DTC
P0740 COMPLETED Yes
Replace the TCM, then go to the next step.
(See TCM REMOVAL/INSTALLATION .)
(w) RX-8 Transmission (Manual & Auto)
