EPS TROUBLESHOOTING
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When the vehicle speed is 1km/h or less and the engine revolution is 2500 rpm or more for over 20 sec.

-

When the engine revolution is 400rpm or less and the vehicle speed is 50km/h or more for over 21 sec.

DIAGNOSIS TROUBLE CODE LIST

DTC NO.

Diagnostic

Remark

C1631

Torque Sensor Main Signal-open/short

C1632

Torque Sensor Sub Signal-open/short

C1633

Torque SNSR SIG. Mismatic-Main & Sub

C1634

Torque SNSR-Supply voltage malfunction

C1621

Vehicle Speed Input Malfunction

C1622

Engine Speed Input Malfunction

C1641

Motor circuit - Short to Battery or Ground

C1642

Motor current - Overflow

C1643

Motor current - Excessive over flow

C1645

Motor current - Insufficient flow

C1652

EPS Control Module (fail safe relay stuck)

C1655

EPS Control Module (pre-change circuit)

C1653

System Voltage - over voltage

C1654

System Voltage - under voltage

INSPECTION PROCESS FOR DIAGNOSTIC TROUBLE CODES

DTC

Diagnostic item

C1631

Torque Sensor Main Signal - opne/short

C1632

Torque Sensor Sub Signal - opne/short

C1633

Torque SNSR SIG. Mismatic - Main & Sub

C1634

Torque SNSR - Supply voltage malfunction

CIRCUIT DIAGRAM
TEST PROCEDURE

DTC

Diagnostic item

C1621

Vehicle Speed Input Malfunction

CIRCUIT DIAGRAM
TEST PROCEDURE
note

This problem may be caused by disconnection or damage of the wire harness.

In such cases, the electrical system is not defective, so reconnect or replace the meter cable and clear the memory.

DTC

Diagnostic item

C1622

Engine Speed Input Malfunction

CIRCUIT DIAGRAM
TEST PROCEDURE

DTC

Diagnostic item

C1653

System Voltage - over voltage

C1654

System Voltage - under voltage

CIRCUIT DIAGRAM
TEST PROCEDURE

DTC

Diagnostic item

C1641

Motor curcuit - Short to Battery or Ground

C1642

Motor current - Overflow

C1643

Motor current - Excessive over flow

C1645

Motor current - Insufficient flow

CIRCUIT DIAGRAM
TEST PROCEDURE

DTC

Diagnostic item

C1652

EPS Control Module (fail safe relay stuck)

C1655

EPS Control Module (pre-change circuit)

TEST PROCEDURE
EPS TROUBLE MODE
Яндекс.Метрика