Faulty overrun clutch solenoid valve (internal coil failure or sticking); Damaged or corroded wiring harness or connector at the solenoid or TCM; Open or short circuit in the solenoid control wire; Failed transmission control module (TCM) driver circuit; Low or contaminated transmission fluid causing solenoid malfunction; Internal transmission mechanical issue affecting solenoid operation (less common)

DTC codes / Nissan codes / P1760

P1760 · NissanOverrun Clutch Solenoid Valve Circuit

Q: What does code P1760 mean?

Overrun Clutch Solenoid Valve Circuit. P1760 on Nissan vehicles indicates that the transmission control module (TCM) has detected an electrical fault in the overrun clutch solenoid valve circuit, which controls hydraulic pressure to the overrun clutch during engine braking and certain gear changes. The TCM monitors the solenoid's current draw and flags the code when the circuit is open, shorted, or out of expected range.

P1760 on Nissan vehicles indicates that the transmission control module (TCM) has detected an electrical fault in the overrun clutch solenoid valve circuit, which controls hydraulic pressure to the overrun clutch during engine braking and certain gear changes. The TCM monitors the solenoid's current draw and flags the code when the circuit is open, shorted, or out of expected range.

SystemPowertrain

Code typeNissan specific

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

Symptoms you may notice

Illumination of the check engine light or transmission warning light, often with no other symptoms
Harsh or delayed shifting, particularly when decelerating or coasting
Failure to engage engine braking or overrun clutch, leading to a freewheeling feel
Transmission may default to a fail-safe mode with limited gear selection
Slipping or shuddering during downshifts
Poor fuel economy or increased engine load at cruise

Common causes, most likely first

Faulty overrun clutch solenoid valve (internal coil failure or sticking)
Damaged or corroded wiring harness or connector at the solenoid or TCM
Open or short circuit in the solenoid control wire
Failed transmission control module (TCM) driver circuit
Low or contaminated transmission fluid causing solenoid malfunction
Internal transmission mechanical issue affecting solenoid operation (less common)

How to diagnose and fix it

Verify the code with a scan tool and check for related transmission codes
Inspect the solenoid connector and wiring for corrosion, damage, or loose pins
Measure the solenoid resistance and compare to factory specification
Check for power and ground signals at the solenoid connector with a multimeter
Test the TCM output signal to the solenoid using an oscilloscope or bidirectional scan tool
Replace the overrun clutch solenoid valve if electrically faulty
Repair or replace damaged wiring or TCM as needed, then clear codes and test-drive

Overrun Clutch Solenoid Circuit Pitfalls

A common misdiagnosis is replacing the solenoid when the real fault is a chafed wire in the harness near the transmission mount, which can short only when the engine moves.
The overrun clutch solenoid often shares a power feed with other solenoids, so a blown fuse or relay can set P1760 along with other solenoid codes.
On some Nissan models, the TCM is integrated into the valve body and can be damaged by contaminated fluid, leading to false solenoid codes.
The code can set intermittently due to a loose connector that passes a wiggle test but fails under vibration; always perform a wiggle test while monitoring solenoid current.
A faulty brake pedal position switch or vehicle speed sensor can cause the TCM to command overrun clutch operation at the wrong time, indirectly setting P1760.

Can I keep driving with P1760?

You can usually drive the vehicle with P1760, but expect degraded shift quality and reduced engine braking; avoid heavy towing or aggressive driving until repaired, as the transmission may enter fail-safe mode.

Tools that help

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Guidance is general and written for Nissan vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.