What this code means
B1145 may indicate that the passenger window control system is seeing a mismatch between the window position it recognizes and where the glass actually is.
What the vehicle may do
- The front passenger window may operate abnormally.
- Auto or learned window position behavior may be affected.
- The passenger switch operation may not match what the control logic expects.
Possible fault areas
- Possible passenger power window switch reset or initialization issue.
- Possible position-detect circuit concern.
- Possible connector or wiring concern in the passenger window switch area.
- Possible master switch interpretation issue involving passenger window position.
Diagnostic path
Opening context
On this CR-V Hybrid, B1145 is a front passenger window position-detect plausibility code. In plain terms, the window control logic may think the passenger glass is in one position while the actual glass position is somewhere else. The customer may notice abnormal passenger window operation, loss of normal learned position behavior, or a window that does not respond the way the switch logic expects. Broadly, this can involve the passenger window switch reset state, the position-detect circuit, connector or wiring condition, or the way the master switch is interpreting the passenger window position.
Start with the basic checks and code triage
Before chasing B1145 by itself, start with the basic system checks and follow a structured diagnostic approach. If other codes are present, especially ones tied to the same power window control area, check what they mean first and handle that path before moving deeper into this B1145 routine. That matters because a shared communication or switch-control problem can make the position-detect code look like the main fault when it may only be part of the picture.
Reset the passenger window switch
Once the preliminary checks and any higher-priority related code paths are handled, reset the front passenger power window switch. Do not invent the reset method. Use the correct reset routine for that switch, and if that routine is not available, pause here rather than guessing. This code is about learned or recognized window position versus actual position, so the reset step is central to the diagnostic path.
Reproduce the operating condition
After the reset, turn the vehicle to ON mode. Then use the front passenger power window switch itself and manually open and close the front passenger window. The point is to make the passenger window move under the same local switch control the system uses to judge window position.
Diagnostic logic
The logic behind B1145 is simple: the power window master switch is comparing the passenger-side window position it recognizes against the actual window position. If those do not agree, it determines there is an abnormality and stores B1145. So keep the diagnosis focused on that mismatch. Confirm the switch reset was done correctly, confirm the window was operated from the passenger switch as required, and avoid jumping to parts replacement without a supported test result.
Verification and takeaway
Keep verification separate from the reset and operating check. After completing the B1145 path, verify the vehicle can run the same passenger-window operation without the position-detect fault returning. The takeaway is to treat this as a recognized-position versus actual-position problem: triage related window or communication faults first, reset the passenger switch correctly, operate the window from the passenger switch, and confirm the code stays gone. For more diagnostic training, visit stepdiagnostics.com.
Final check
B1145 is often approached as a plausibility problem between recognized window position and actual window position, so the diagnostic focus is on code triage, switch reset, commanded passenger-window/m
For more guided automotive diagnostics, visit STEP Diagnostics.
