DTC P1546 Isuzu
A C Compressor Clutch Output Circuit Malfunction
A C Compressor Clutch Output Circuit Malfunction
Description
Engine started, engine runtime over 32 seconds, system voltage over 10v, and the PCM detected the A C Clutch Output circuit was high with the A C compressor clutch commanded on, or it was low with the clutch commanded off for 25 seconds over a 50 seco
Cause and Solution
A C clutch signal circuit is open or shorted to groundA C clutch signal circuit is shorted to system power (B+)A C clutch power circuit is open (check the A C 10A fuse)A C compressor relay is damaged or has failedPCM has failed
Video Guide
Diagnostic Info
- DTC Code: P1546
- Brand: Isuzu