C1445 on Porsche
Rear Axle Steering - Malfunction of Right Servo Motor
C1445 on Porsche vehicles indicates rear axle steering - malfunction of right servo motor. Au7o has documented this code across 1 Porsche model — most commonly on 911. The rear axle steering control unit has detected a malfunction of the right-hand rear steering servo motor - the motor is not responding correctly to commands or its feedback is implausible. Rear-axle steering is shut down and the rear wheels are held straight. Porsche Technical Information 07/25 (ENU 4883) documents C1445F2 "Malfunction of right servo motor (000015)" on 2025-onward 992 Carrera GTS, Carrera 4 GTS, Turbo and Turbo S with rear axle steering, usually stored together with C11D1F5.
Common Causes of C1445
- •Rear axle steering control unit software - Porsche's remedy is re-programming with PIWIS Tester release 43.200.031 or higher (labor op 48832500)
- •Failed right rear servo motor or its position sensor
- •Wiring, connector, or ground fault at the right rear actuator
- •Low system voltage during dynamic driving
C1445 on Porsche by Model
Porsche 911(1 issue)
- "Rear Axle Steering Failed" Warning from Right Servo Motor Fault Codes2025-2026
Porsche Technical Information 07/25 ENU 4883 applies to the 911 Carrera GTS (992), 911 Carrera 4 GTS (992), 911 Turbo (992) and 911 Turbo S (992) from model year 2025 equipped with rear axle steering (M-no. 0N5). The customer complaint is that "the yellow warning message 'Rear axle steering failed' in the instrument cluster lights up in conjunction with dynamic cornering." The rear axle steering control unit stores C1445F2 (malfunction of right servo motor, 000015) and C11D1F5 (travel blocked, 000028). Despite naming the right servo motor and a blocked-travel condition, Porsche's remedy is a control unit re-programming, which indicates the codes are a software artifact rather than a mechanically seized actuator. Rear axle steering is optional on the GTS cars and standard on Turbo models, so this is fitment-gated - a 992 without M-no. 0N5 cannot exhibit it.
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What does C1445 mean on Porsche?▼
C1445 stands for "Rear Axle Steering - Malfunction of Right Servo Motor." The rear axle steering control unit has detected a malfunction of the right-hand rear steering servo motor - the motor is not responding correctly to commands or its feedback is implausible. Rear-axle steering is shut down and the rear wheels are held straight. Porsche Technical Information 07/25 (ENU 4883) documents C1445F2 "Malfunction of right servo motor (000015)" on 2025-onward 992 Carrera GTS, Carrera 4 GTS, Turbo and Turbo S with rear axle steering, usually stored together with C11D1F5. On Porsche specifically, this code is documented across 1 model.
What causes C1445 on Porsche vehicles?▼
Common causes on Porsche: Rear axle steering control unit software - Porsche's remedy is re-programming with PIWIS Tester release 43.200.031 or higher (labor op 48832500), Failed right rear servo motor or its position sensor, Wiring, connector, or ground fault at the right rear actuator, Low system voltage during dynamic driving. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1445 on a Porsche?▼
Repair costs vary widely depending on the root cause and specific Porsche model.
Which Porsche models have C1445 documented?▼
Au7o has documented C1445 on 1 Porsche model: 911.