What this code means
B1145 may mean the front passenger window position being recognized by the control system does not match the window's actual position.
What the vehicle may do
- The front passenger power window may behave unpredictably during manual operation.
- The window position learning or position recognition may be incorrect.
- The code can appear when the control side and actual window position do not agree.
Possible fault areas
- Front passenger power window switch
- Window position detect circuit
- Power window master switch recognition of the front passenger window position
- Body electrical power window data interpretation
Diagnostic path
Opening context
On this Honda CR-V, B1145 is for a front passenger window position detect circuit malfunction. In plain terms, the control side may not agree with where the front passenger window actually is. The customer may notice odd front passenger window behavior, especially around manual operation or position learning, and the broad fault area can involve the front passenger power window switch, the position detection circuit, or what the master switch is recognizing from that window. Treat this as a position-plausibility problem, not as a parts call.
Start with the right pre-checks
Before getting into the B1145 path, start with the basic system checks and follow a structured diagnostic approach. If other power-window or body-network codes are present, check what they mean first and handle those indicated systems before isolating B1145. If you are dealing with multiple codes at the same time, do not chase this one in isolation until the larger system context makes sense.
Targeted item for this code
For the B1145 path, the inspection is centered on the front passenger's power window switch. The specified work item is resetting the front passenger's power window switch. Stay with that reset path before moving on, because this code is based on the recognized passenger-window position being different from the actual window position.
Operate the window under the required condition
Turn the vehicle to the ON mode. Then use the front passenger's power window switch itself and manually open and close the front passenger's power window. Do not use the master switch for this step; the path calls for operating the passenger window from the passenger switch manually.
Make the diagnostic decision
The diagnostic logic is simple: the system is comparing what the power window master switch recognizes for the front passenger window position against where that window actually is. After the switch reset and manual window operation, keep verification separate from the reset work itself. Reproduce the operating conditions, verify the repair, and confirm B1145 stays gone. If the path does not clearly return a result, pause, recheck the earlier diagnostic path, and avoid guessing.
Closing takeaway
The takeaway is to diagnose B1145 as a front passenger window position plausibility fault: check for higher-priority related system issues first, reset the front passenger switch as directed, operate that window from the passenger switch in ON mode, and verify that the code stays gone afterward. For more diagnostic training, visit stepdiagnostics.com.
Final check
B1145 is best approached as a possible position-plausibility fault in the front passenger power window system.
For more guided automotive diagnostics, visit STEP Diagnostics.
