Spn 1548 5 Hvac Duct Temperature - crm.catalystglobal.com e7c974
Use the dash slprtemp switch to vary sleeper temperature from warmest setting to the coldest setting. Source addresses and dtc descriptions are presented in plain text. I assumed the duct sensors might be bad so i replaced both of them located on passenger side underneath the dash.
Webthe system uses constant outlet temperature control (cotc) to provide discharge air temperature out the ducts that has a stable temperature based on a reference point for. Websuspect parameter number (spn), failure mode indicator (fmi) and occurrence count numbers are listed. Webdtc/light spn fmidescription possible causes diagnostics 3 fmi spn 520210 6 blower output short circuit blower relay failure or relay enable signal from system controller. Still getting air in the sleeper but now the fan level 8 (max) is more. Mine just came on as well the same time i lost all air in the cab. Webhvac control head temperature mix dm1 hvac temperature door stuck, defective door actuator, or open/ shorted circuit 1200_b11 to temp actuator pin a, or 1200_b12 to. Webi have a hvac duct temperature code spn 1548.
Mine just came on as well the same time i lost all air in the cab. Webhvac control head temperature mix dm1 hvac temperature door stuck, defective door actuator, or open/ shorted circuit 1200_b11 to temp actuator pin a, or 1200_b12 to. Webi have a hvac duct temperature code spn 1548. Webmar 24, 2018 · could be hvac related error. Use the rear hvac control panel blower switch to raise and lower.