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Item 1: Low-reverse solenoid valve
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OK: Operating sound can be heard.
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Q.
Is the check result normal?
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Replace the low-reverse solenoid valve.
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Item 5: Input shaft speed sensor (Refer to data list reference table ).
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Q.
Is the check result normal?
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Refer to diagnosis code P1766: Input shaft speed sensor system .
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Either of diagnosis codes P1770 (P0705) or P1771 (P0705) is set, inhibitor switch is defective.
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Q.
Are diagnosis codes P1770 (P0705) or P1771 (P0705) set?
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YES diagnosis code P1770 (P0705) is set : Refer to diagnosis code P1770 (P0705): Inhibitor switch system .
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YES diagnosis code P1771 (P0705) is set : Refer to diagnosis code P1771 (P0705): Inhibitor switch system .
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Item 12: Low-reverse solenoid valve duty ratio (Refer to data list reference table ).
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Q.
Is the check result normal?
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Replace the engine-A/T-ECU.
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Q.
Does the shift shock occur when the vehicle starts moving?
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Measure the hydraulic pressure for reverse clutch and low-reverse clutch when the selector lever is shifted from N to R range.
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Q.
Is the check result normal?
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Q.
Does the shift shock always occur?
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Item 2: Accelerator pedal position sensor (Refer to data list reference table ).
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Q.
Is the check result normal?
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Check the accelerator pedal position sensor system (Refer to GROUP 13A - Troubleshooting, Inspection Chart For Diagnosis Code ).
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(1)Check the bolts for looseness and the O-ring, solenoid valve and valve body for damage. Replace the valve body assembly if the damages are thought to be irreparable.
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(2)Test drive the vehicle.
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(3)Verify that the condition described by the customer exists.
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Q.
Does a malfunction take place again?
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The inspection is complete.
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Check the facing for seizure and the piston seal ring for damage and interference with the retainer.
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Q.
Is the check result normal?
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The inspection is complete.
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Repair or replace the reverse clutch and low-reverse brake.
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