DTC P1783:00 [AY6A-EL, AY6AX-EL]
id0502k1820700
DTC P1783:00 |
ATF high oil temperature malfunction |
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DETECTION CONDITION
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• Conditions: Engine speed < 800 rpm and TCM communication normal
• Circumstances: ATF temperature of 150 °C {302 °F} or above detected
• Time period: Determined after 1 time lasting 12 seconds
Diagnostic support note:
• The MIL does not illuminate.
• The AT warning light does not illuminate.
• PENDING CODE is not available.
• FREEZE FRAME DATA is not available.
• The DTC is stored in the TCM memory.
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FAIL-SAFE FUNCTION
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• Request torque limitation
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POSSIBLE CAUSE
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• High engine load drive (Driving a steep gradient at a low speed)
• Insufficient or excess level of ATF
• Deteriorated ATF
• TCM malfunction
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SYSTEM WIRING DIAGRAM
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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1
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VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related repair information available?
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Yes
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Perform repair or diagnosis according to the available repair information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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2
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VERIFY VEHICLE DRIVING CONDITIONS
• Verify vehicle driving conditions when a DTC P1783:00 is output according to the customer reports.
• Has the vehicle been driven at a high engine load?
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Yes
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• Go to Step 5.
• Inform the customer that the ATX temperature is high due to high engine load driving.
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No
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Go to the next step.
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3
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INSPECT FOR ATF LEAKAGE
• Verify that there is no ATF leaking from the transaxle case, and the connecting surfaces of the transaxle and the engine.
• Is any ATF leakage verified?
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Yes
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After repairing the spot where there is ATF leakage, adjust the ATF level, then go to Step 5.
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No
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Go to the next step.
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4
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INSPECT ATF CONDITION
• Inspect the ATF condition.
• Is it normal?
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Yes
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Go to the next step.
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No
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Replace the ATF, then go to next step.
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5
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VERIFY DTC TROUBLESHOOTING COMPLETED
• Clear the DTC using the M-MDS.
• Switch the ignition OFF (LOCK), then switch it ON.
• Verify the DTCs recorded in the TCM.
• Is the same DTC present?
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Yes
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Replace the TCM, then go to the next step.
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No
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Go to the next step.
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6
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VERIFY NO DTCs ARE PRESENT
• Perform the “Reading DTCs Procedure”.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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