P0920 on Nissan: How to Diagnose & Fix
Gear Shift Forward Actuator Circuit/Open
1 Nissan model · 1 documented issue · 1 critical · $500-$20,000 repair
P0920 on Nissan by model: symptoms, diagnosis and fix
The Nissan GT-R GR6 dual-clutch transmission (built by Aichi Machine Industry with BorgWarner dual-clutch components) develops judder during low-speed maneuvers, parking, and first gear takeoffs. The clutch packs wear unevenly, and the transmission control module software can cause harsh engagement. Track use accelerates wear dramatically. Replacement costs are exceptionally high.
Common Symptoms
- Juddering at low speeds/parking
- Harsh engagement in 1st gear
- Clunking during slow maneuvers
- Transmission shudder during creep
- Clutch slip under high power
- Transmission overheating on track
How to Fix
Software update from dealer may improve low-speed behavior. Transmission fluid change every 15,000 miles with Nissan R35 OEM fluid is critical. For worn clutches, a full transmission rebuild costs $10,000-20,000 at a GT-R specialist. Aftermarket clutch upgrades (Dodson, Shepherd) available for $5,000-12,000.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Nissan R35 GT-R DCT transmission fluid 999MP-GTRT00P
Confirm year-specific service procedure, actual drained/refill quantity, fluid temperature/level method and subsequent clutch/shift-fork setting with a GT-R-qualified shop.
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Sources for this issue (3)
P0920 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0920 mean on a Nissan?
P0920 stands for "Gear Shift Forward Actuator Circuit/Open." P0920 indicates an open circuit in the gear shift forward actuator circuit. In transmissions that use electronic shift actuators, this actuator helps engage forward gear ranges; an 'open' means the control module isn't seeing a complete electrical circuit to that actuator. The code is treated as serious because it can prevent the transmission from shifting or engaging gears properly. Symptoms may include inability to select or stay in a forward gear, harsh or no engagement, a transmission warning light, or limp-mode behavior. On Nissan it is documented across 1 model: GT-R.
What are the most common causes of P0920?
The most common causes of P0920 are: Open or broken wiring in the actuator circuit, Faulty gear shift forward actuator, Corroded, loose, or disconnected connector, Moisture or corrosion on circuit contacts, Damaged wiring harness near the transmission, Poor ground or open power feed to the actuator, Faulty transmission control module (less common). The specific cause varies by vehicle.
How much does it cost to fix P0920 on a Nissan?
Published repair estimates on Nissan range from $500 to $20,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.