Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Power Steering Control Module: Fail-safe
When an error occurs in the hydraulic pump electric power steering system, fail-safe brings the system to a halt (manual steering) or restricted (constant steering assist level) state. When the system is in a halt state, fail-safe turns ON the Hydraulic Pump Electric Power Steering Warning Lamp to warn the driver that the hydraulic pump electric power steering system is in the manual steering state.
|
DTC |
Fail-safe condition |
|
C1143 |
Certain steering assist force |
|
C1601 |
Manual steering state |
|
C1602 |
Manual steering state |
|
C1606 |
Manual steering state |
|
C1607 |
Certain steering assist force |
|
C1608 |
Manual steering state |
|
U1000 |
Normal control
NOTE:
If the cause is in a different ECU, the state changes to fixed steering assist force.
|
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.