Spn 1548 5 Hvac Duct Temperature Q&a Hino 268 Ac Recharge Fmi Dd1
Source addresses and dtc descriptions are presented in plain text. This is more for the automatic portion of the hvac system. Could be hvac related error.
SPN 1548 FMI 5. HVAC Duct Temperature Current below normal or open
Circuit and sensor associated with providing the hvac duct temperature parameter The only thing it can be is an open in the harness, or the front control unit can be bad. I have 2012 cascadia and it has a fualt code a cant seam to findout on the web what it means.
Discharge temp sensor high possible causes:
The suspect parameter number (spn) is diagnostic fault code terminology found on some caterpillar ® products using a j1939 can data link. This is either going to be a faulty sensor or a problem within the wiring harness or connector pins between the sensor and control. 58 1548 05 cotc sensor, short to battery or open circuit. (fresh air), inside the cab (recirc air), or a mixture of the two.
Suspect parameter numbers (spn) codes on j1939 data link the suspect parameter number (spn) is diagnostic fault code terminology found on some of our equipment using a j1939. Head will modulate the temperature door in order to reach and maintain the reference temperature. Suspect parameter number (spn), failure mode indicator (fmi) and occurrence count numbers are listed. What's the make/model/year of your truck?
SPN 1548 FMI 5. HVAC Duct Temperature Current below normal or open
Dtc 5, spn 1548, fmi 3:
1207 = engine ecu temperature (obsolete use spn 1136) 1245 = engine timing actuator #2. In the hvac unit, there is a temp sensor. Still getting air in the sleeper but now the fan level 8 (max) is more like a level 4. 5 cylinder nozzle 5 cyl 5 injectr cyl 5 injectr.
Mine just came on as well the same time i lost all air in the cab. I have a hvac duct temperature code spn 1548. Whats this mean vehicle fault: It's sys25 1548 fml 5 does anyone know what that means and how to fix.
What Is Code SPN 1548 FMI 5? (Freightliner HVAC Duct Temperature)
Things like an open in the harness can cause a high voltage code.
The only things that can. Ł discharge temp sensor wire shorted to power • discharge temp sensor missing ł open circuit in. So i stopped at a dealer and got those sensors. As 'chuckmcnugget' suggested (thanks bud!) that i need to replace the temp sensors in hvac box behind the dash.
I'd suggest to disconnect a battery for 15 mins, reconnect, wait for 5 mins and try to restart. If it doesn't help (sometimes there's a program block to prevent stealing equipment). 5 (current below normal), count: The code is still active.
Q&A Hino 268 AC Recharge SPN 1548 FMI 5 DD15 HVAC
Either damaged wiring or connector pins or replace the failed sensor.
The fmi 5 is indicating that it is open circuit. This will only affect certain hvac functions. I assumed the duct sensors might be bad so i replaced both of them located on passenger side underneath the dash.
