P0704 on Nissan: How to Diagnose & Fix
Clutch Switch Input Circuit Malfunction
1 Nissan model · 1 documented issue · $10-$150 repair
P0704 on Nissan by model: symptoms, diagnosis and fix
370Z owners report failure of the small rubber/plastic stopper pad on the clutch pedal bracket. When it breaks or falls out, the clutch interlock switch may not be depressed, causing a no-crank condition on manual cars; in some cases cruise-control or clutch-switch logic also behaves incorrectly. This is a long-running Z-platform issue documented by owners across the 2009-2020 370Z run.
Common Symptoms
- No-crank with key/start button despite battery being good
- Vehicle starts only after manipulating clutch pedal
- Cruise control inoperative or cancels unexpectedly
- Loose debris from broken pedal stopper found on floor mat
How to Fix
Inspect the clutch pedal arm for the missing stopper where it contacts the clutch switch. If the pad is missing, replace it with the updated stopper or an aftermarket equivalent and verify clutch switch adjustment. If the switch itself was damaged or misadjusted after the pad failed, adjust or replace the switch and confirm normal start authorization.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Z1 urethane clutch-pedal switch stopper 46584-S0100 replacement
2009-2020 manual-transmission 370Z; sold individually. Inspect both stopper locations and install at the switch actually affected.
- OEM Nissan clutch-pedal position/start switch 25325-D400E
Do not confuse it with the separate cruise-control cancel switch; adjust clearance after installation.
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P0704 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 P0704 mean on a Nissan?
P0704 stands for "Clutch Switch Input Circuit Malfunction." Applies primarily to manual-transmission vehicles. Set when the PCM detects an implausible or out-of-range signal from the clutch pedal position switch, which informs the PCM whether the clutch is engaged (used for cruise control, starting, and idle/shift logic). On Nissan it is documented across 1 model: 370Z.
What are the most common causes of P0704?
The most common causes of P0704 are: Faulty clutch pedal position switch, Misadjusted clutch switch, Open or shorted clutch switch wiring, Poor connector or ground at the switch, PCM input circuit fault. The specific cause varies by vehicle.
How much does it cost to fix P0704 on a Nissan?
Published repair estimates on Nissan range from $10 to $150 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.