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Check that P0841 (Low-clutch pressure switch) and P0988 (Low-reverse brake pressure switch) are set.
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Q.
Is the diagnosis code set?
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Check and repair the relevant diagnosis code system.
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Check that the diagnosis code other than P1731 (1st engine brake detection) is set.
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Q.
Is the diagnosis code set?
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Check and repair the relevant diagnosis code system.
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Check the status of the A/T fluid properties (smell, colour, fouling).
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- Black: A/T inside damage, seizure
- Milky: Water intrusion
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Q.
Is the check result normal?
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Remove the A/T from the vehicle, then check and repair the inside.
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Q.
Is the check result normal?
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Adjust the A/T fluid level, and then go to Step 5.
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- Check the wiring harness and connectors of the low-clutch pressure switch and low-reverse brake pressure switch.
- Check the signals of C-42 A/T-ECU connector terminal No. 37 (output shaft speed sensor) and the terminal No. 38 (input shaft speed sensor).
Refer to .
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Q.
Is the check result normal?
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Repair or replace the failure section.
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Q.
Is the check result normal?
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Remove the A/T from the vehicle, then check and repair the inside.
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Check that the normal code is displayed.
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Q.
Is the check result normal?
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The procedure is complete.
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