P1774 2003 Infiniti G35 Code - Low Coast Brake Solenoid Valve Function
Quick Answer
Low Coast Brake Solenoid Valve is turned "ON" or "OFF" by the Transmission Control Module (TCM) in response to signals sent from the Park & Neutral Position (PNP) Switch, Vehicle Speed Sensor (VSS), and Accelerator Pedal Position (APP) Sensor (Throttle Position Sensor). Common causes include Faulty Low Coast Brake Solenoid Valve, Low Coast Brake Solenoid Valve harness is open or shorted, Low Coast Brake Solenoid Valve 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
- P1774 2003 Infiniti G35 indicates Low Coast Brake Solenoid Valve Function.
- Common causes
- Common causes include Faulty Low Coast Brake Solenoid Valve, Low Coast Brake Solenoid Valve harness is open or shorted, Low Coast Brake Solenoid Valve 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 P1774 2003 Infiniti G35 Description
What are the Possible Causes of the DTC P1774 2003 Infiniti G35?
- Faulty Low Coast Brake Solenoid Valve
- Low Coast Brake Solenoid Valve harness is open or shorted
- Low Coast Brake Solenoid Valve circuit poor electrical connection
- Faulty Transmission Valve Body
How to Fix the DTC P1774 2003 Infiniti G35?
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.
Code Tech Notes
2003 Infiniti G35 RE5R05A Transmission Factory Service Bulletin OBDII Code P1774
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1774 2003 Infiniti G35 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 P1774 2003 Infiniti G35 Code
1. What are the common symptoms of OBDII code P1774 in a 2003 Infiniti G35?
- Common symptoms include harsh shifting, delayed shifting, erratic shifting, and in some cases, the vehicle may go into limp mode.
2. What can cause the OBDII code P1774 in a 2003 Infiniti G35?
- The most common cause of this code is a malfunctioning Low Coast Brake Solenoid Valve in the transmission.
3. How can I diagnose the Low Coast Brake Solenoid Valve issue in my 2003 Infiniti G35?
- Diagnosing this issue typically involves checking the wiring and connections to the solenoid valve, as well as performing a resistance test to determine if the solenoid is functioning properly.
4. Can I still drive my Infiniti G35 with the P1774 code present?
- It is not recommended to continue driving the vehicle with the P1774 code present, as it can lead to further damage to the transmission if not addressed promptly.
5. How can I repair the Low Coast Brake Solenoid Valve issue in my 2003 Infiniti G35?
- Repairing the issue may involve replacing the Low Coast Brake Solenoid Valve, as well as addressing any wiring or connection issues that may be contributing to the problem.
6. Will resetting the OBDII code P1774 in my 2003 Infiniti G35 make it go away permanently?
- Resetting the code may temporarily clear the warning light, but if the underlying issue with the Low Coast Brake Solenoid Valve is not fixed, the code is likely to return.
7. What are the potential long-term effects of ignoring the OBDII code P1774 in a 2003 Infiniti G35?
- Ignoring the P1774 code can lead to further transmission problems, increased fuel consumption, and ultimately more costly repairs down the line.
8. Can a DIY enthusiast fix the Low Coast Brake Solenoid Valve issue in a 2003 Infiniti G35?
- While some DIY enthusiasts may be able to replace the solenoid valve themselves, it is recommended to have this type of repair done by a professional mechanic with experience in transmission work.
9. How much does it typically cost to repair the Low Coast Brake Solenoid Valve in a 2003 Infiniti G35?
- The cost of repairing the Low Coast Brake Solenoid Valve can vary depending on the mechanic's labor rates and the cost of the replacement part, but it is generally a moderate expense compared to other transmission repairs.
10. Are there any preventive measures I can take to avoid OBDII code P1774 in my 2003 Infiniti G35?
- Regular maintenance, including checking and replacing transmission fluid as needed, can help prevent issues with the Low Coast Brake Solenoid Valve and reduce the likelihood of encountering the P1774 code.
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