Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING [GF4A-EL]
2 VEHICLE MOVES IN N POSITION
TROUBLESHOOTING HINTS
If the vehicle moves in N position, basically, the malfunction is in the automatic transaxle. Since a malfunction in the sensor
circuit or output circuit is the cause of the malfunction in the automatic transaxle, inspect the sensors, output circuit, and the
related harnesses.
0 Clutch burned (Forward clutch, coasting clutch)
• Line pressure low
• Malfunction of throttle position sensor (Disparity in setting sensor settings)
• Malfunction of vehicle speedometer sensor (Disparity in setting sensor settings)
• Malfunction of input/turbine speed sensor (Disparity in setting sensor settings)
• Malfunction of sensor ground (Disparity in setting sensor settings)
• 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
© Selector lever position disparity (Although the selector indicator light shows N position, the hydraulic circuit shows D range,
R position)
STEP INSPECTION
ACTION
1 Does vehicle creep when selector lever is Yes
Go to next step
moved slightly in N position?
No Adjust selector lever
S3- 0 5 -1 8 SELECTOR LEVER ADJUSTMENT
2 Check the voltage at the following terminal of
the powertrain control module
t r 01-40B POWERTRAIN CONTROL
Yes Go to next step
MODULE (PCM) INSPECTION [KL]
• Pressure control solenoid signal
Is terminal voltage okay?
No Repair or replace any defective parts
3 Check duty of pressure control solenoid
o - 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
a- 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
o - 01-40B POWERTRAIN CONTROL MODULE (PCM)
INSPECTION [KL]
• Throttle position sensor signal
• Ground (Engine, body)
Repair or replace any defective parts
VEHICLE MOVES IN P POSITION, OR PARKING GEAR DOES NOT DISENGAGE WHEN P DISENGAGED
TROUBLESHOOTING HINTS
§
Malfunction of parking mechanism (May have effect on noise or shock from transaxle)
Poor adjustment of selector lever (Only if vehicle move when in P position or 1 range)
If vehicle moves in N position, perform No.2 "VEHICLE MOVES IN N POSITION”
EXCESSIVE CREEP
TROUBLESHOOTING HINTS
S Engine idle speed high (transaxle system is not cause of problem)
Go to No.7 “ Engine runs rough/rolling idle”
a- 0 1 -0 1 B ENGINE SYMPTOM TROUBLESHOOTING [KL]
0 5 -0 1 B -2 6