C1A70 on Nissan
Power Steering Control System Malfunction (EPS)
C1A70 on Nissan vehicles indicates power steering control system malfunction (eps). Au7o has documented this code across 1 Nissan model — most commonly on Rogue. C1A70 is a manufacturer-specific chassis code (common on Toyota/Lexus) indicating a malfunction within the Power Steering Control System. It is typically stored when a controlling module receives an internal-fault signal from the Power Steering ECU, meaning the electric power steering assist is degraded or has failed. The steering wheel may feel stiff or heavy and require much more effort to turn. Because loss of power assist directly affects controllability, this should be addressed promptly. Typical repair costs on Nissan range from $250 to $1,800, depending on the specific model and root cause.
Common Causes of C1A70
- •Faulty power steering (EPS) control module/ECU
- •Internal fault reported by the power steering motor or driver circuit
- •Wiring or connector damage in the EPS harness
- •Low system/battery voltage or charging fault
- •Blown EPS fuse or poor ground
- •Steering torque/angle sensor failure
C1A70 on Nissan by Model
Nissan Rogue(1 issue)
- Front Radar / Automatic Emergency Braking False Activation and Sensor Obstruction Warnings2021-2025
Multiple owners of the current-generation Rogue report the forward collision warning / automatic emergency braking system issuing sudden alerts, disabling itself, or in some cases braking unexpectedly with no obstacle present. Complaints commonly mention 'Front radar unavailable due to obstruction' or related warning messages in clear weather, sometimes recurring after restart. This is a safety-related issue because it can cause abrupt deceleration or loss of driver-assistance functions when expected.
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View C1A70 across all makes →Frequently Asked Questions
What does C1A70 mean on Nissan?▼
C1A70 stands for "Power Steering Control System Malfunction (EPS)." C1A70 is a manufacturer-specific chassis code (common on Toyota/Lexus) indicating a malfunction within the Power Steering Control System. It is typically stored when a controlling module receives an internal-fault signal from the Power Steering ECU, meaning the electric power steering assist is degraded or has failed. The steering wheel may feel stiff or heavy and require much more effort to turn. Because loss of power assist directly affects controllability, this should be addressed promptly. On Nissan specifically, this code is documented across 1 model.
What causes C1A70 on Nissan vehicles?▼
Common causes on Nissan: Faulty power steering (EPS) control module/ECU, Internal fault reported by the power steering motor or driver circuit, Wiring or connector damage in the EPS harness, Low system/battery voltage or charging fault, Blown EPS fuse or poor ground. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1A70 on a Nissan?▼
Repair costs on Nissan range from $250 to $1,800, depending on the specific model and root cause.
Which Nissan models have C1A70 documented?▼
Au7o has documented C1A70 on 1 Nissan model: Rogue.