2018 / ECLIPSE CROSS / EC - Workshop Manual
37 -ELECTRIC POWER STEERING (EPS) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > C1565 ENGINE REVOLUTION DATA INVALID
Code No.C1565 Engine revolution data invalid
| caution | - If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C, CAN Bus Diagnostics Table
 ). - Whenever ECU is replaced, ensure that the CAN bus lines are normal.
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OPERATION
EPS-ECU receives engine revolution signal from the engine-ECU.
FUNCTION
The engine speed signal is sent to the EPS-ECU for motor control.
TROUBLE JUDGEMENT
Check Conditions
- Turn on the ignition switch.
- The engine circuit system diagnosis code is not set.
Judgement Criterion
- If the microcomputer receives abnormal engine speed signal from the engine-ECU, it determines that the engine speed calculation system is defective.
Fail Safe, Back Up Function
- The EPS-ECU illuminates the electric power steering warning symbol, and sets diagnosis code No.C1565. Normally the assist operation continues while the vehicle is driven, but deactivated after the vehicle is ignition switch to the "LOCK" (OFF) position.
PROBABLE CAUSES
- Malfunction of the engine-ECU
- Malfunction of the EPS-ECU
DIAGNOSIS PROCEDURE
1. Check the service data "Item No. 19: Engine revolution" and If there is an abnormality, perform troubleshooting for engine-ECU (Refer to GROUP 13A - Troubleshooting/Inspection Chart for Diagnosis code ). 2. Replace the EPS-ECU (Refer to ).
