C1604 on Genesis
Manufacturer-Specific Chassis Code (Hyundai/Kia: ECU Hardware Error; Nissan: EPS Torque Sensor)
C1604 on Genesis vehicles indicates manufacturer-specific chassis code (hyundai/kia: ecu hardware error; nissan: eps torque sensor). Au7o has documented this code across 1 Genesis model — most commonly on G70. C1604 is a manufacturer-specific chassis code whose meaning depends on the maker. On Hyundai/Kia it generally indicates an internal ECU/control-module hardware error detected during the module's self-diagnostics (processor, memory, or internal power fault). On Nissan/Infiniti it has been associated with an electric power steering torque sensor fault. Because it disables a safety system (ABS/ESC or electric power steering) as a fail-safe, the affected feature may not work until repaired, so confirm the exact definition for the specific vehicle.
Common Causes of C1604
- •Internal control module (EBCM/ESC or EPS) hardware fault
- •Electric power steering torque sensor fault (Nissan/Infiniti)
- •Low or unstable supply voltage to the module
- •Corroded or loose module connector
- •Wiring or ground fault
- •Software/calibration issue requiring update
C1604 on Genesis by Model
Genesis G70(1 issue)
- ABS Module Electrical Short Causing Engine-Bay Fire Risk (Recall 21V-161 / 007G)2019-2021
An electrical short circuit can develop inside the Anti-lock Brake System (ABS) hydraulic control module. Because the module is always powered, the short can cause an engine-compartment fire whether the vehicle is parked or being driven, even with the ignition off. Genesis recalled certain 2019-2021 G70 vehicles under NHTSA campaign 21V-161 (Genesis recall 007G); owners were told to park the car outside and away from structures until repaired. This is part of the broader Hyundai/Genesis ABS-fire recall family. The remedy installs a fuse in the ABS module wiring to prevent the short from igniting a fire.
Looking for C1604 on a different make?
View C1604 across all makes →Frequently Asked Questions
What does C1604 mean on Genesis?▼
C1604 stands for "Manufacturer-Specific Chassis Code (Hyundai/Kia: ECU Hardware Error; Nissan: EPS Torque Sensor)." C1604 is a manufacturer-specific chassis code whose meaning depends on the maker. On Hyundai/Kia it generally indicates an internal ECU/control-module hardware error detected during the module's self-diagnostics (processor, memory, or internal power fault). On Nissan/Infiniti it has been associated with an electric power steering torque sensor fault. Because it disables a safety system (ABS/ESC or electric power steering) as a fail-safe, the affected feature may not work until repaired, so confirm the exact definition for the specific vehicle. On Genesis specifically, this code is documented across 1 model.
What causes C1604 on Genesis vehicles?▼
Common causes on Genesis: Internal control module (EBCM/ESC or EPS) hardware fault, Electric power steering torque sensor fault (Nissan/Infiniti), Low or unstable supply voltage to the module, Corroded or loose module connector, Wiring or ground fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1604 on a Genesis?▼
Repair costs vary widely depending on the root cause and specific Genesis model.
Which Genesis models have C1604 documented?▼
Au7o has documented C1604 on 1 Genesis model: G70.