Mazda MX-6 1998, Руководство по ремонту

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TROUBLESHOOTING [GF4A-EL]
18
EXCESSIVE SHIFT SHOCK WHEN UPSHIFTING AND DOWNSHIFTING
TROUBLESHOOTING HINTS
Shift shock may worsen when the fail-safe is operating. Verify the diagnostic trouble code at first. The shift shock has
worsened if the throttle position sensor, input/turbine speed sensor, or vehicle speedometer sensor signal malfunctions.
0 Clutch slippage, burned (2 -4 brake band, 3 -4 clutch)
• Line pressure low, high
• Malfunction of throttle position sensor
• Malfunction of vehicle speedometer sensor
• Malfunction of input/turbine speed sensor
• Malfunction of TFT 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 3 -2 timing solenoid valve (Sticking)
• Malfunction of pressure control solenoid valve (Sticking)
• Malfunction of body ground (Sticking)
• Malfunction of control valve body system (Poor operation, sticking)
STEP INSPECTION ACTION
1 Perform the stall test
tr 0 5 -1 7B MECHANICAL SYSTEM TEST
[GF4A-EL], Stall Test
Is stall speed okay?
Yes Go to next step
No Repair or replace any defective parts
2 Check the voltage at the following terminal of
the powertrain control module
tr
01-40B POWERTRAIN CONTROL
MODULE (PCM) INSPECTION [KL]
• Pressure control solenoid signal
Is terminal voltage okay?
Yes Go to next step
No Repair or replace any defective parts
3 Check duty of pressure control solenoid
tr 0 5 -1 7B SOLENOID VALVES
INSPECTION [GF4A-EL], Pressure
Control Solenoid Output Duty Inspection
Is duty okay?
Yes Overhaul control valve body and repair or replace any
defective parts
tr ATX workshop manual
If problem remains, overhaul transaxle and repair or
replace any defective parts
tr ATX workshop manual
No Check the voltage at the following terminals of the
powertrain control module
tr 01—40B POWERTRAIN CONTROL MODULE (PCM)
INSPECTION [KL]
• Throttle position sensor signal
• Ground (Engine, body)
Repair or replace any defective parts
19 EXCESSIVE TORQUE CONVERTER CLUTCH (TCC) SHIFT SHOCK
TROUBLESHOOTING HINTS
The troubleshooting flow is the same as for No.16 “JUDDER UPON TORQUE CONVERTER CLUTCH (TCC) OPERATION"
0 5 -0 1 B -3 5