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Home >> Infiniti >> 2013 >> M35h >> Repair and Diagnosis >> Steering >> Power Steering >> Steering Control System >> Ecu Diagnosis Information >> Power Steering Control Module >> Fail-safe
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Power Steering Control Module: Fail-safe

If a malfunction occurs in the system, the fail-safe function stops the system (manual steering state) or restricts its operation (certain steering assist force). When the system is stopped, the hybrid EPS (electrical power steering) warning lamp illuminates to inform the driver that manual steering state is in effect.

DTC Fail-safe condition
C1601 The assist force is reduced gradually according to the voltage, eventually ending with manual steering state.
C1604 Manual steering state
C1606
C1607 Certain steering assist force
NOTE: When an internal malfunction occurs, the system changes to manual steering state.
C1608 Manual steering state
C1609 Certain steering assist force
C1612 Manual steering state
C1614(1)
U0428 Certain steering assist force
U1000 Normal control
NOTE: If the cause is in a different ECU, the state changes to certain steering assist force.
U1010 Normal control
U14FE
U14FF Normal control
NOTE: If the vehicle speed signal (METER) is abnormal, the state changes to certain steering force.
(1) If the steering angle speed is too fast during air bleeding work, "DTC1614" may be detected.
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