I have warning light , check code is P1835, P1301-548, C1310

[Jeza]

P3101-548

Abnormal signal received from engine control computer (CVT system abnormality)

 

The hybrid vehicle computer performs fail-safe control based on an abnormality signal from the engine control computer (when the engine control computer detects an abnormality that may affect THS control).

 

This points to the speed sensor on the gearbox as the signal goes to the engine ECU, then the hybrid ECU goes into limp mode.

 

P1825 is the speed sensor circuit NOUT (speed out), wiring or the sensor, there are no other connectors in the circuit.  Did you check the NIN circuit to ensure you have the correct connector and pins? Just to rule out the engine ECU being faulty!! 

[benzzy_ku]

8 hours ago, Jeza said:

when driving

I will check for you.

[benzzy_ku]

On 7/8/2025 at 3:32 AM, Jeza said:

P3101-548

Abnormal signal received from engine control computer (CVT system abnormality)

 

The hybrid vehicle computer performs fail-safe control based on an abnormality signal from the engine control computer (when the engine control computer detects an abnormality that may affect THS control).

 

This points to the speed sensor on the gearbox as the signal goes to the engine ECU, then the hybrid ECU goes into limp mode.

 

P1825 is the speed sensor circuit NOUT (speed out), wiring or the sensor, there are no other connectors in the circuit.  Did you check the NIN circuit to ensure you have the correct connector and pins? Just to rule out the engine ECU being faulty!! 

This sensor in below the inverter?

[Jeza]

Yes, unfortunately.

Secondary pulley rotation speed sensor that detects the output shaft rotation speed is placed on the secondary pulley shaft (reduction drive gear), which is NOUT. This the top one on the diagram to the rear of the square shape bit of the gearbox.

rab0711c.pdf