What this code means
B1145 may indicate a front passenger power window position-detect concern, where the system can see a mismatch between the window position it recognizes and the actual window অবস্থ
What the vehicle may do
- The front passenger window may not behave as expected during position-related operation.
- The vehicle may store the code when the recognized window position does not match the actual position.
- The concern can appear after the system loses or needs a proper passenger window switch reset state.
Possible fault areas
- Possible passenger power window switch reset or initialization concern.
- Possible window position detection logic concern.
- Possible related door multiplex or body communication concern when other codes are also present.
Diagnostic path
Code overview
On this Civic, B1145 points to a front passenger power window position-detect issue. In plain language, the power window master switch may think the passenger window is in a different position than it actually is. When that recognized position and the actual window position do not line up, the system can store this code. The driver may notice the passenger window logic acting off, or the system may simply flag the code during diagnosis. Broadly, this can involve the passenger window switch reset state, the window position detection logic, or related door multiplex and body communication inputs.
Start with the code priority
Before chasing B1145 directly, start with the basic system checks and use a structured diagnostic approach. If the vehicle has multiple body communication or power window codes stored, do not treat B1145 in isolation. Check what those other codes mean first, and if related power window codes are present, diagnose those first before coming back to this one.
Reset the passenger switch
Once the earlier checks and code priority are handled, reset the front passenger power window switch. For this code, that reset is the key service action in the listed diagnostic path, because the fault is based on the system disagreeing with the window position it recognizes.
Confirm the operation
After the reset, put the vehicle in ON mode. Then use the front passenger power window switch itself to manually open and close the front passenger window. Keep this confirmation separate from the earlier code-priority checks: first make sure the right diagnostic path was followed, then confirm the passenger switch and window operation after the reset.
Takeaway
The takeaway for B1145 is simple: the system is looking for agreement between the passenger window’s actual position and the position the master switch recognizes. Handle related codes first, reset the front passenger power window switch, and confirm the window manually from that passenger switch. For more diagnostic training, visit stepdiagnostics.com.
Final check
B1145 is handled by prioritizing related codes first, resetting the front passenger power window switch, and confirming passenger window operation from the passenger switch.
For more guided automotive diagnostics, visit STEP Diagnostics.
