What is the solution for Dongfeng Nissan P0846?
2 Answers
Replace the transmission oil. The P0846 fault code in Dongfeng Nissan appears due to unclean transmission oil. Here are the reasons for the P0846 fault code: 1. Transmission failure: This means the dashboard warning light comes on during driving, accompanied by issues such as jerky starts, sluggish gear shifts, delayed throttle response, and inability to accelerate. 2. Intermittent acceleration failure: When the throttle is fully pressed, the RPM needle only swings around 1000, with noticeable jerking during gear changes. Sometimes the RPM drops directly from 2000 to 1000, the engine warning light comes on, and the vehicle vibrates.
I've driven for several years, and when encountering the P0846 trouble code, I usually start with the transmission fluid, checking if the level is low or if there are impurities. Adding some fluid might solve the problem. If that doesn't work, then it's necessary to inspect the sensor wiring and connectors, as corrosion or looseness can cause signal abnormalities—just use a multimeter to test. Nissan CVTs commonly have this issue, so it's best to connect to a diagnostic scanner to read specific data streams and confirm if it's a hydraulic sensor problem before deciding whether to replace it. Regular maintenance includes changing the fluid periodically to avoid impurities clogging the system and affecting hydraulics. If delayed, the transmission might jerk or hesitate during shifting, and in severe cases, parts could burn out, costing more money. So, when you spot the trouble code, address it promptly—don't gamble on luck while driving.
