P0742 on Nissan
Torque Converter Clutch Circuit Stuck On
P0742 on Nissan vehicles indicates torque converter clutch circuit stuck on. Au7o has documented this code across 1 Nissan model — most commonly on Z. P0742 means the torque converter clutch (TCC) circuit is stuck on, meaning the lockup clutch that mechanically links the engine to the transmission stays engaged when it should release. The computer commands the clutch on and off, and when it detects the converter clutch remaining applied, it sets this code. The classic symptom is the engine stalling when coming to a stop, similar to driving a manual without pushing the clutch in, along with possible harsh shifts or poor fuel economy. It points to a hydraulic or solenoid problem inside the transmission rather than the engine.
Common Causes of P0742
- •Stuck or failed torque converter clutch solenoid
- •Stuck valve in the valve body (TCC apply valve)
- •Contaminated or degraded transmission fluid
- •Internal transmission hydraulic leak holding the clutch on
- •Wiring or connector fault to the TCC solenoid
- •Faulty torque converter
- •Dirty or clogged transmission filter
P0742 on Nissan by Model
Nissan Z(1 issue)
- Manual Transmission Synchro and Clutch Issues2023-2025
The 2023+ Nissan Z with the 6-speed manual transmission reports synchro issues (particularly 3rd and 4th gear) and premature clutch wear. Some owners experience gear grinding, difficulty shifting, and clutch chatter. TSB NTB23-012 addresses rev-matching issues and shifting concerns. The 9-speed automatic also has reports of harsh shifting.
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View P0742 across all makes →Frequently Asked Questions
What does P0742 mean on Nissan?▼
P0742 stands for "Torque Converter Clutch Circuit Stuck On." P0742 means the torque converter clutch (TCC) circuit is stuck on, meaning the lockup clutch that mechanically links the engine to the transmission stays engaged when it should release. The computer commands the clutch on and off, and when it detects the converter clutch remaining applied, it sets this code. The classic symptom is the engine stalling when coming to a stop, similar to driving a manual without pushing the clutch in, along with possible harsh shifts or poor fuel economy. It points to a hydraulic or solenoid problem inside the transmission rather than the engine. On Nissan specifically, this code is documented across 1 model.
What causes P0742 on Nissan vehicles?▼
Common causes on Nissan: Stuck or failed torque converter clutch solenoid, Stuck valve in the valve body (TCC apply valve), Contaminated or degraded transmission fluid, Internal transmission hydraulic leak holding the clutch on, Wiring or connector fault to the TCC solenoid. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0742 on a Nissan?▼
Repair costs vary widely depending on the root cause and specific Nissan model.
Which Nissan models have P0742 documented?▼
Au7o has documented P0742 on 1 Nissan model: Z.