diff --git a/firmware/hw_layer/hip9011.cpp b/firmware/hw_layer/hip9011.cpp
index c9f72576e5..d0b4b4953f 100644
--- a/firmware/hw_layer/hip9011.cpp
+++ b/firmware/hw_layer/hip9011.cpp
@@ -408,7 +408,7 @@ void initHip9011(Logging *sharedLogger) {
 
 	hipSpiCfg.ssport = getHwPort("hip", CONFIGB(hip9011CsPin));
 	hipSpiCfg.sspad = getHwPin("hip", CONFIGB(hip9011CsPin));
-#endif
+#endif /* EFI_PROD_CODE */
 
 	startHip9001_pins();
 
diff --git a/firmware/hw_layer/hip9011.md b/firmware/hw_layer/hip9011.md
new file mode 100644
index 0000000000..d894fdf39c
--- /dev/null
+++ b/firmware/hw_layer/hip9011.md
@@ -0,0 +1 @@
+Use _hipinfo_ command in console to troubleshoot.
\ No newline at end of file
diff --git a/firmware/hw_layer/sensors/cj125.md b/firmware/hw_layer/sensors/cj125.md
new file mode 100644
index 0000000000..4fbd8a9475
--- /dev/null
+++ b/firmware/hw_layer/sensors/cj125.md
@@ -0,0 +1,9 @@
+Use _cj125_ command in rusEfi console to confirm SPI communication.
+
+Use _cj125_calibrate_ command in rusEfi console for calibration.
+
+Use Debug Mode = CJ125 for heater validation.
+
+
+See https://github.com/rusefi/rusefi_documentation/tree/master/overview/wbo for more info.
+