NISSAN TCU CODES 1st -Vehicle speed sensor(A/T Revolution) circut2nd -Vehicle speed sensor/MTR (at Speedometer)3rd -Throttle position sensor or switch4th -Shift solenoid valve “A”5th -Shift solenoid valve “B”6th -Overrun clutch solenoid Valve7th -Torque converter solenoid valve8th -Fluid temp sensor/ ATCU power source circut9th -Engine speed signal circuit10th -Turbine revolution sensor11th -line pressure solenoid sensor