C1604 Infiniti Code - Electric Power Steering Torque Sensor
Quick Answer
Electric Power Steering (EPS) Torque Sensor detects steering wheel turning force and outputs sensor signal to EPS Control Unit. Common causes include Faulty Electric Power Steering Torque Sensor, Electric Power Steering Torque Sensor harness is open or shorted, Electric Power Steering Torque Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1604 Infiniti indicates Electric Power Steering Torque Sensor.
- Common causes
- Common causes include Faulty Electric Power Steering Torque Sensor, Electric Power Steering Torque Sensor harness is open or shorted, Electric Power Steering Torque Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C1604 Infiniti Description
What are the Possible Causes of the DTC C1604 Infiniti?
- Faulty Electric Power Steering Torque Sensor
- Electric Power Steering Torque Sensor harness is open or shorted
- Electric Power Steering Torque Sensor circuit poor electrical connection
- Faulty Electric Power Steering Control Unit
How to Fix the DTC C1604 Infiniti?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1604 Infiniti code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about C1604 Infiniti Code
1. What does the OBDII code C1604 mean on an Infiniti?
C1604 indicates an issue with the Electric Power Steering (EPS) Torque Sensor, which monitors the steering torque applied by the driver to assist steering electronically.
2. What are the common symptoms of code C1604 in an Infiniti?
Symptoms include a stiff or heavy steering wheel, the EPS warning light illuminating, and reduced or no power steering assist.
3. What causes the C1604 code in Infiniti vehicles?
Common causes include a faulty torque sensor, wiring issues such as damaged or corroded connectors, or a malfunction in the EPS control module.
4. Can I still drive my Infiniti with the C1604 code?
Driving is possible, but the steering may be much harder, especially at low speeds. It’s safer to address the issue promptly to avoid potential accidents.
5. How do you diagnose the C1604 code on an Infiniti?
A technician will use a scan tool to confirm the code, check the torque sensor’s signal, inspect wiring and connections, and perform tests on the EPS system components.
6. How is the C1604 code fixed on an Infiniti?
Repairs may include replacing the faulty torque sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the EPS control module.
7. Is the C1604 code specific to certain Infiniti models?
The C1604 code can appear on various Infiniti models equipped with electric power steering systems, but the exact repair process may vary by model.
8. How much does it cost to repair the C1604 code?
Repair costs depend on the root cause. Replacing a torque sensor may cost $300–$800, while wiring repairs or EPS module replacement could vary widely.
9. Can a C1604 code be caused by a weak battery?
Yes, a weak or failing battery can cause voltage fluctuations that may trigger the C1604 code and affect the EPS system.
10. Does the C1604 code require reprogramming after repairs?
In some cases, reprogramming or calibrating the EPS system may be necessary after replacing the torque sensor or EPS control module.
Discuss the causes and fixes for C1604 Infiniti OBDII Code
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