C1A26 on Nissan
Manufacturer-Specific EPS/Chassis Sensor Circuit (commonly Temperature Sensor Circuit)
C1A26 on Nissan vehicles indicates manufacturer-specific eps/chassis sensor circuit (commonly temperature sensor circuit). Au7o has documented this code across 1 Nissan model — most commonly on Murano. C1A26 is a manufacturer-specific chassis trouble code most often associated with the Electric Power Steering (EPS) system, frequently flagged as a temperature sensor circuit fault within the power steering control unit. The control module monitors internal or system temperature to protect components, and this code indicates the reading is out of range, implausible, or the circuit has an electrical fault. The exact meaning varies by maker, but it generally points to a sensor or wiring issue in the steering/chassis control system. Steering assist may be reduced or temporarily disabled if the module overheats or cannot read temperature. Typical repair costs on Nissan range from $250 to $1,800, depending on the specific model and root cause.
Common Causes of C1A26
- •Faulty internal temperature sensor in EPS/steering control module
- •Damaged wiring or corroded connector at the steering control unit
- •Overheated power steering ECU from sustained high-load steering
- •Failed EPS control module
- •Low system voltage or poor ground
- •Software/calibration fault requiring module update
C1A26 on Nissan by Model
Nissan Murano(1 issue)
- Front Radar/Sensor Malfunctions Triggering AEB, ICC, and Forward Collision Warnings2021-2024
Owners have reported intermittent 'Front radar unavailable,' AEB/FCW warnings, disabled intelligent cruise control, and related driver-assistance faults on 2021-2024 Murano models. In many cases the system disables itself in rain, road spray, or after minor front-end impacts, but some complaints describe repeated warnings in normal conditions due to sensor alignment, bracket movement, contamination, or radar unit faults. Because these systems are tied to emergency braking and adaptive cruise functions, repeated failures are a significant safety concern.
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View C1A26 across all makes →Frequently Asked Questions
What does C1A26 mean on Nissan?▼
C1A26 stands for "Manufacturer-Specific EPS/Chassis Sensor Circuit (commonly Temperature Sensor Circuit)." C1A26 is a manufacturer-specific chassis trouble code most often associated with the Electric Power Steering (EPS) system, frequently flagged as a temperature sensor circuit fault within the power steering control unit. The control module monitors internal or system temperature to protect components, and this code indicates the reading is out of range, implausible, or the circuit has an electrical fault. The exact meaning varies by maker, but it generally points to a sensor or wiring issue in the steering/chassis control system. Steering assist may be reduced or temporarily disabled if the module overheats or cannot read temperature. On Nissan specifically, this code is documented across 1 model.
What causes C1A26 on Nissan vehicles?▼
Common causes on Nissan: Faulty internal temperature sensor in EPS/steering control module, Damaged wiring or corroded connector at the steering control unit, Overheated power steering ECU from sustained high-load steering, Failed EPS control module, Low system voltage or poor ground. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1A26 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 C1A26 documented?▼
Au7o has documented C1A26 on 1 Nissan model: Murano.