Mazda MX-6 1998, Руководство по ремонту

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TROUBLESHOOTING [GF4A-EL]
NO SHIFT
TROUBLESHOOTING HINTS
When the gear position is fixed in third gear due to the fail-safe operation, the malfunction is in the automatic transaxle.
Perform malfunction diagnosis according to No.6 “LOW MAXIMUM SPEED AND POOR ACCELERATION".
© Clutch burned
• Line pressure low
• Malfunction of throttle position sensor
• Malfunction of vehicle speedometer sensor
• Malfunction of input/turbine speed sensor
• Malfunction of sensor ground
• Malfunction of shift solenoid A (Sticking)
• Malfunction of shift solenoid B (Sticking)
• Malfunction of shift solenoid C (Sticking)
• Malfunction of pressure control solenoid valve (Sticking)
• Malfunction of body ground (Sticking)
• Malfunction of control valve body system (Poor operation, sticking)
© T h e 3GR is fixed (Operation in fail-safe function)
• Short or open circuit in wiring
• Poor connection of connector
• The electronic parts of output and input system is malfunction_____________________________________________
8
DOES NOT SHIFT TO FOURTH GEAR
TROUBLESHOOTING HINTS
Although the malfunction is basically the same as No.7 “NO SHIFT” , there are also other unique malfunctions.
© Operation in transaxle range switch fail-safe function (Judge of 2 range)
• Short or open circuit in wiring
• Poor connection of connector
• Malfunction of sensor
• Selector lever adjustment incorrect
© T h e 3GR is fixed (Operation in fail-safe function)
• Short or open circuit in wiring
• Poor connection of connector
• Malfunction of Input/output signal system
STEP INSPECTION
ACTION
1
With indicator switch at ON, does O/D OFF
indicator light indication correspond to O/D
OFF switch operation? Yes Go to next step
No Go to No.26 “O/D OFF INDICATOR LIGHT DOES NOT
ILLUMINATE WHEN O/D OFF SWITCH IS TURNED ON” ,
No.27 “O/D OFF INDICATOR LIGHT ILLUMINATES
WHEN O/D OFF SWITCH IS NOT TURNED ON”
2 Check the voltage at the following terminal of
the powertrain control module
c r 0 1 -40B POWERTRAIN CONTROL
MODULE (PCM) INSPECTION [KL]
• TFT sensor signal
Is terminal voltage okay?
Yes Go to next step
No Repair or replace any defective parts
3 Check the voltage at the following terminals of
the powertrain control module
Iy 01-40B POWERTRAIN CONTROL
MODULE (PCM) INSPECTION [KL]
• Shift solenoid A signal
• Shift solenoid B signal
• Shift solenoid C signal
Are terminal voltages OK?
Yes
Overhaul control valve body and repair or replace any
defective parts
P ” ATX workshop manual
If problem remains, overhaul transaxle and repair or
replace any defective parts
i xr ATX workshop manual
No
Check the voltage at the following terminals of the
powertrain control module
o r 01-40B POWERTRAIN CONTROL MODULE (PCM)
INSPECTION [KL]
• D range signal
• Input/turbine speed sensor signal
• Ground (Engine, body)
• Vehicle speedometer sensor signal
Repair or replace any defective parts
0 5 -0 1 B -2 9