DTC U1800[86] CAN Communication or Input Data Malfunction With ECM

1. EPS motor control unit general circuit diagram

2. EPS motor control unit outline view and connector face

3. EPS motor control unit pin layout

2 pin (A connector)

PIN No.	Pin function
1	Battery voltage
2	Ground

6 pin (B connector)

PIN No.	Pin function
1	Ignition voltage
2	-
3	-
4	Chassis CAN (Low)
5	Chassis CAN (High)
6	-

4 pin (C connector)

PIN No.	Pin function
1	Torque sensor signal (TSS)
2	Torque sensor low reference (TSG)
3	Torque sensor 5 volts reference (TSV)
4	Torque sensor signal (TSM)