P1774 on Nissan

Low coast brake solenoid valve function fault in a Nissan or Infiniti RE5R05A 5-speed automatic

Severity: Severity not verified — if the car runs badly, have it inspected

Owners report clanking, dropping to first gear and a burning smell with this code, but we found no source that says how far it is safe to drive.

It gets more serious if:

Inspect soon: The transmission drops into one gear, clanks, slips or smells burnt.

Source: how we rate severity

This page covers only what differs on Nissan. For what P1774 means, the ranked causes and the test order, see the P1774 guide.

What's different on Nissan

Nissan

2007–2008 · Pathfinder
Supported by vehicle data
Owners of 2007 and 2008 Pathfinders report P1774 with limp mode, clanking and a burning smell.
2007 · Frontier
Possible — needs testing
A 2007 Frontier owner read P1774 with P0717 and links it to coolant mixing from the radiator cooler (owner opinion).

Sources and review

NHTSA complaint 1383999: 2008 Nissan Pathfinder, P1774 low coast brake — NHTSA (owner complaint)
NHTSA complaint 1504451: 2007 Nissan Pathfinder, P1774 — NHTSA (owner complaint)
NHTSA complaint 1379623: 2007 Nissan Frontier, P1774 and P0717 — NHTSA (owner complaint)
RE5R05A Trouble Code Chart — Sonnax Transmission Company , January 1, 2013

Last reviewed: October 16, 2026
Written by: Saurabh K.
Editorial review: Pending
Technician review: Technician review pending

This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error