Mazda 2002 6 Workshop Manual page 531

STEP
3 Disconnect solenoid connector.
Does vehicle operate as follows?
D, S ranges: 3GR (fixed) L range: 1GR (fixed)
R position: Reverse
4 Drive vehicle in D, S, and L ranges except HOLD
mode. Does vehicle start from stop in first gear?
5 Check the value at the following PIDs using the
WDS or equivalent.
(See F–45 PCM
• SSA/SS1
• SSB/SS2
• SSC/SS3
Are PID values okay?
6 Perform the stall test. (See
Is stall speed okay?
End Of Sie
NO.7 NO SHIFTING
7 No shifting
• Single shift range only.
DESCRIPTION
• Sometimes it shifts correctly.
• When the gear position is fixed in 3GR due to the fail-safe operation, the malfunction is in the ATX.
• Perform malfunction diagnosis according to No.6 "Low maximum speed and poor acceleration".
1. Clutch slippage, burned
POSSIBLE
CAUSE 2. Signal malfunction
3. Transaxle fixed in 3GR (Operation in fail-safe function)
4. Transaxle fixed in HOLD mode
End Of Sie
NO.8 DOES NOT SHIFT TO FOURTH GEAR (4GR)
8 Does not shift to fourth gear (4GR)
• Vehicle does not upshift from 3GR to 4GR even though vehicle speed increased.
• Vehicle does not shift to 4GR even though accelerator pedal is released in D range at 60 km/h {37
DESCRIPTION
mph}.
K–120
TROUBLESHOOTING
INSPECTION
INSPECTION.)
K–7 Stall Test.)
• 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
• Vehicle speed sensor malfunction
• Sensor GND malfunction
• TP sensor malfunction
• Input/turbine speed sensor malfunction
• Short or open circuit in wiring
• Poor connection of connector
• Disconnected shift solenoid connector
• Poor ground of shift solenoid
• HOLD switch malfunction
Yes Go to next step.
No Overhaul control valve body and repair or replace any
defective parts. If problem remains, overhaul transaxle 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].)
Yes Go to next step.
No Check the value at the following PIDs using the WDS or
equivalent.
(See F–45 PCM INSPECTION.)
• TP
• VSS
• TSS
• TR
Repair or replace any defective parts.
Yes Go to next step.
No Check the value at the following PIDs using the NGS tester.
(See F–45 PCM INSPECTION.)
• TP
• VSS
• TSS
Repair or replace any defective parts.
Yes Reverify symptoms of malfunction.
No Overhaul transaxle 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].)
ACTION
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