P1841 Infiniti Code - Automatic Transmission Fluid Pressure Switch 1
Quick Answer
The Fail-safe function to detect front brake clutch solenoid valve condition. Common causes include Faulty Automatic Transmission Fluid (ATF) Pressure Switch 1, Automatic Transmission Fluid (ATF) Pressure Switch 1 harness is open or shorted, Automatic Transmission Fluid (ATF) Pressure Switch 1 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
- P1841 Infiniti indicates Automatic Transmission Fluid Pressure Switch 1.
- Common causes
- Common causes include Faulty Automatic Transmission Fluid (ATF) Pressure Switch 1, Automatic Transmission Fluid (ATF) Pressure Switch 1 harness is open or shorted, Automatic Transmission Fluid (ATF) Pressure Switch 1 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 P1841 Infiniti Description
What are the Possible Causes of the DTC P1841 Infiniti?
- Faulty Automatic Transmission Fluid (ATF) Pressure Switch 1
- Automatic Transmission Fluid (ATF) Pressure Switch 1 harness is open or shorted
- Automatic Transmission Fluid (ATF) Pressure Switch 1 circuit poor electrical connection
How to Fix the DTC P1841 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 P1841 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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Information for Specific Infiniti Models
- P1841 2003 Infiniti G35 — Automatic Transmission Fluid Pressure Switch 1
- P1841 2004 Infiniti G35 — Automatic Transmission Fluid Pressure Switch 1
- P1841 2005 Infiniti G35 — Automatic Transmission Fluid Pressure Switch 1
- P1841 2006 Infiniti G35 — Automatic Transmission Fluid Pressure Switch 1
Frequently Asked Questions about P1841 Infiniti Code
1. What does the P1841 code mean for an Infiniti?
The P1841 code indicates a malfunction in the Automatic Transmission Fluid Pressure Switch 1, which monitors fluid pressure in the transmission.
2. What are the common symptoms of the P1841 code in an Infiniti?
Symptoms may include harsh or delayed shifting, transmission slipping, poor acceleration, or the transmission going into limp mode.
3. What causes the P1841 code to appear on an Infiniti?
Common causes include a faulty pressure switch, low or dirty transmission fluid, wiring or connector issues, or a malfunctioning transmission control module (TCM).
4. Can driving with the P1841 code damage my Infiniti?
Yes, driving with this code can lead to further transmission damage if the issue is not resolved promptly.
5. How can I diagnose the P1841 code on my Infiniti?
Start by checking the transmission fluid level and condition, inspecting the wiring and connectors for damage, and testing the pressure switch for proper function.
6. How do I fix the P1841 code on an Infiniti?
Repairs may include replacing the faulty pressure switch, cleaning or repairing damaged wiring, or flushing and refilling the transmission fluid.
7. Is replacing the transmission fluid enough to clear the P1841 code?
If the issue is caused by low or dirty fluid, replacing the fluid may resolve the code. However, if the pressure switch or wiring is faulty, additional repairs will be needed.
8. How much does it cost to fix the P1841 code on an Infiniti?
The repair cost varies, but replacing a pressure switch typically ranges from $150 to $400, depending on parts and labor.
9. Can a bad transmission control module cause the P1841 code?
Yes, a malfunctioning transmission control module (TCM) can cause communication or pressure monitoring issues, triggering this code.
10. Can I clear the P1841 code without fixing the problem?
You can clear the code with an OBDII scanner, but it will likely return if the underlying issue isn’t resolved.
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