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Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 20259
Experience:  20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer
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How can I repair code p1774 on Nissan frontier 2005, p1774,

Customer Question

hi how can I repair code p1774 on Nissan frontier 2005
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: p1774
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: I haven't tried anything
JA: Anything else you think the mechanic should know?
Customer: no problems just the check engine light with that code
Submitted: 1 year ago.
Category: Nissan
Expert:  Jay replied 1 year ago.

Hello my name is ***** ***** thank you for your question.

This code is for a low coast brake solenoid valve function. Are you a repair shop? Do you have a scanner?

Customer: replied 1 year ago.
Customer: replied 1 year ago.
How do I repair it?
Expert:  Jay replied 1 year ago.

This type of codes requires advance diagnostics. This could be a electrical issue with in the transmission or a Mechanical. So tests with a scanner are done to actuate the solenoid to see if it show a response from the solenoid. If it's a electrical issue, the whole valve body would need to be replaced. If it's a mechanical issue, the transmission would need to be either replaced or over hauled. This is not a simple sensor type repair.

Do you have any more questions on this?