When testing the clutch connector, a Pulse Width Modulated (PWM) voltage may be observed, rather than a simple 0V or 14V signal.
Overcharged AC systems can cause this error, as excessive pressure prevents the compressor clutch from engaging.
For further assistance, it is recommended to scan for the specific 80436E code using a BMW-specific diagnostic tool to verify the refrigerant pressure sensor readings.
Replacing the clutch, serpentine belt, tensioner, and idler pulley may be necessary if the compressor itself has failed.
The core issue involves an AC compressor not engaging, resulting in error code , which indicates a potential issue with the refrigerant pressure sensor or excessive system pressure. Key Troubleshooting Steps & Findings
Antigo
O artigo engadiuse correctamente á cesta
Aviso: Trátase de un libro antigo, que mostra sinais asociadas ó paso do tempo. Elimíneo da cesta se non desexa realizar a compra
Damnificado
O artigo engadiuse correctamente á cesta
Aviso: Trátase de un libro damnificado, exemplar exclusivo con deterioro en algunha páxina/portada. Elimíneo da cesta se non desexa realizar a compra
6bc2485b-3788-4f36-9c6f-237ccb8398eb.png Apr 2026
When testing the clutch connector, a Pulse Width Modulated (PWM) voltage may be observed, rather than a simple 0V or 14V signal.
Overcharged AC systems can cause this error, as excessive pressure prevents the compressor clutch from engaging. 6BC2485B-3788-4F36-9C6F-237CCB8398EB.png
For further assistance, it is recommended to scan for the specific 80436E code using a BMW-specific diagnostic tool to verify the refrigerant pressure sensor readings. When testing the clutch connector, a Pulse Width
Replacing the clutch, serpentine belt, tensioner, and idler pulley may be necessary if the compressor itself has failed. When testing the clutch connector
The core issue involves an AC compressor not engaging, resulting in error code , which indicates a potential issue with the refrigerant pressure sensor or excessive system pressure. Key Troubleshooting Steps & Findings