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5A-38 Automatic Transmission/Transaxle: Poor O/D → 3 shift Shift solenoid valve No.2 circuit faulty Inspect circuit for open, short and intermittent. Pressure control solenoid valve circuit Inspect circuit for open, short and intermittent. Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent. If NG, repair. Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent. CAN communication circuit faulty Inspect circuit for open, short and intermittent. Accelerator pedal position sensor circuit Inspect circuit for open, short and intermittent “3” position switch circuit faulty Refer to “No Gear Shift to 4th Gear” TCM Substitute a known-good TCM and recheck. ECM Substitute a known-good ECM and recheck. Poor 3 → 2 shift Shift solenoid valve No.1 circuit faulty Inspect circuit for open, short and intermittent. Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent. If NG, repair. CAN communication circuit faulty Inspect circuit for open, short and intermittent. Accelerator pedal position sensor circuit Inspect circuit for open, short and intermittent TCM Substitute a known-good TCM and recheck. ECM Substitute a known-good ECM and recheck. Poor 2 → 1 shift Shift solenoid valve No.2 circuit faulty Inspect circuit for open, short and intermittent. Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent. If NG, repair. CAN communication circuit faulty Inspect circuit for open, short and intermittent. Accelerator pedal position sensor circuit Inspect circuit for open, short and intermittent TCM Substitute a known-good TCM and recheck. ECM Substitute a known-good ECM and recheck. Condition Possible cause Correction / Reference Item |