Reading out the fault code only reflects the failure of the electronic control system. Mechanical faults such as valve sticking cannot be displayed by the fault code. Therefore, the fault of the electronic control system can be eliminated according to the fault code check procedure, and then the fault of the mechanical part can be found according to the symptom check test.
(1) Diagnosis of fault code "41" - Throttle position sensor circuit.
(2) Diagnosis of fault code "42" - No. 1 speed sensing line
(3) Diagnosis of fault code "61" - No. 2 speed sensor line
(4) Diagnosis of fault code "62" - solenoid valve circuit No. 1
(5) Diagnosis of fault code "63" - No. 2 solenoid valve circuit.
(6) Diagnosis of fault code "64" - the torque converter locks the solenoid valve circuit.
(7) Diagnosis of fault code "65" - timing solenoid valve circuit.
(8) Diagnosis of fault code "86" - engine speed sensor circuit.
(9) Fault diagnosis that cannot be changed.
(10) Fault diagnosis that the shift point is too high or too low.
(11) Failure to enter the overspeed fault diagnosis.
(12) Fault diagnosis that the torque converter cannot be locked after warming up.
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