Illuminates on the dashboard.
If your Nissan is throwing the error code, it typically points to a specific issue with the Active Grille Shutter (AGS) system. This system uses shutters in the front bumper to improve aerodynamics and engine warm-up times. When they get stuck or the motor fails, it triggers this DTC (Diagnostic Trouble Code). Code Overview: P155B-00
The unit itself has failed internally.
Inspect the high-voltage (usually orange) wiring harnesses for damage, chafing, or exposed wires.
If you are looking for help on a site like NICOclub or NissanClub, you can use this template: nissan p155b-00
Using a scanner (like Consult-III plus or a high-end aftermarket tool), the technician looks at the live data from the IBS.
The Nissan P155B-00 code is a serious,, high-level powertrain issue that requires specialized attention. Due to the high-voltage nature of the hybrid systems involved, professional diagnosis from a certified Nissan mechanic is strongly recommended to resolve the power system malfunction safely. To help you further with this code, could you tell me: What is the of your Nissan? Are there other codes showing (like P0Axx codes)? Does the car still drive , or will it not start? Illuminates on the dashboard
Electric Water Pump – Operation Malfunction
A blown fuse protecting the motor generator circuit. When they get stuck or the motor fails,
Understanding and Fixing Nissan P155B-00 Code: A Comprehensive Guide