diff --git a/Diagnostics.md b/Diagnostics.md
index e45d5bc..39171d9 100644
--- a/Diagnostics.md
+++ b/Diagnostics.md
@@ -2,7 +2,7 @@ The errors reported by the board are in the form of audible beeps:
 - **1 beep  (low pitch)**: Motor error (see [possible causes](https://github.com/EmanuelFeru/bldc-motor-control-FOC#diagnostics)). Are you using a [single wheel](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Parameters#single-wheel-use) ?
 - **2 beeps (low pitch)**: ADC timeout. Check possible reasons/troubleshooting tips in the wiki section for [ADC variant](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-ADC)
 - **3 beeps (low pitch)**: Serial communication timeout. Check possible reasons/troubleshooting tips in the wiki section for [USART variant](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-USART)
-- **4 beeps (low pitch)**: General timeout (PPM, PWM, Nunchuk). Check possible reasons/troubleshooting tips in the wiki section for [PPM variant](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-PPM)/[PWM variant](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-PWM)/[Nunchuk variant](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-Nunchuk)
+- **4 beeps (low pitch)**: General timeout (PPM, PWM, Nunchuk). Check possible reasons/troubleshooting tips in the wiki section for [PPM variant](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-PPM#troubleshooting)/[PWM variant](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-PWM#troubleshooting)/[Nunchuk variant](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-Nunchuk#troubleshooting)
 - **5 beeps (low pitch)**: Mainboard temperature warning
 - **1 beep slow (medium pitch)**: Low battery voltage < 36V
 - **1 beep fast (medium pitch)**: Low battery voltage < 35V