Mazda 6 2002 Workshop Manual page 493

STEP
2 Check the value at the following PID using the
WDS or equivalent.
(See F–45 PCM INSPECTION.)
• TP
Is PID value okay?
3 Disconnect PCM.
Is resistance between ground terminal at PCM
connector and body ground less than 5.0
ohms?
4 Check LPS PID value.
Is LPS PID value okay?
(See F–45 PCM INSPECTION.)
End Of Sie
NO.6 LOW MAXIMUM SPEED AND POOR ACCELERATION
6 Low maimum speed and poor acceleration
• Vehicle acceleration is poor at start.
DESCRIPTION
• Delayed acceleration when accelerator pedal is depressed while driving.
• If the clutch is stuck or does not stay in 3GR, the malfunction is in engine circuit.
1. Clutch slipped, burned
• Line pressure low
• Shift solenoid D malfunction
• Shift solenoid E malfunction
• Shift solenoid A malfunction
• Shift solenoid B malfunction
• Shift solenoid C malfunction
• Pressure control solenoid malfunction
• Body GND malfunction
• Control valve body malfunction
2. Signal malfunction
• Vehicle speed sensor malfunction
• Sensor GND malfunction
• TP sensor malfunction
• Input/turbine speed sensor malfunction
POSSIBLE
3. Transale fied in 3GR (Operation of fail-safe function)
CAUSE
• Short or open circuit in wiring
• Poor connection of connector
• The electronic parts of output and input system have malfunction
4. Insufficient starting torque (Suspected when in-gear condition, shift control and engine circuit are
normal)
• The torque converter have malfunction (Poor operation, stuck)
5. Engagement of TCC operation range (Operation of fail-safe function)
• Transale fluid temperature sensor malfunction (Short or open circuit)
6. Transale fied in HOLD mode
• HOLD switch malfunction
7. TR switch adjustment incorrect
Note
• Before following troubleshooting steps, make sure that Automatic Transale On-Board Diagnostic
and Automatic Transale Basic Inspection are conducted.
Diagnostic procedure
STEP
1 With ignition switch at ON, does HOLD indicator
light indication correspond to HOLD switch
operation?
2 Go to No.12 "Lack/loss of power".
(See F–207 NO.12 LACK/LOSS OF
POWER-ACCELERATION/CRUISE.) Does CIS
system okay?
TROUBLESHOOTING
INSPECTION
INSPECTION
Yes Go to net step.
No Repair or replace any defective parts.
Yes Go to net step.
No Repair open ground circuit.
Yes Overhaul control valve body and repair or replace any
defective parts.
If problem remains, overhaul transale and repair or replace
any defective parts. (See ATX workshop manual (FN4A-EL)
[1623-10-98E].) (See ATX workshop manual supplement
(FN4A-EL) [1746-1*-02C].)
No Repair or replace any defective parts.
Yes Go to net step.
No Go to No.26 "HOLD INDICATOR LIGHT DOES NOT
ILLUMINATE WHEN HOLD SWITCH IS TURNED ON.".
No.27 "HOLD INDICATOR LIGHT ILLUMINATES WHEN
HOLD SWITCH IS NOT TURNED ON."
Yes Go to net step.
No Repair or replace any defective parts.
ACTION
A6E568001030W10
ACTION
K–119
K