Over Temperature And Fluid/Air Leak Diagnostics

Check For Air Flow Specific DTCs	Diagnostic Guidance Notes
B120F-98 B122E-98 B122F-98 B1230-98 B1231-7A B1232-7A	Once the diagnostic process detailed above has been carried out and it has been identified that there has not been a failure of any of the climate units, then refer back to the relevant climate system DTC codes that have been recorded DTC codes listed that end in 7A or 98 indicate a possible air leak or air flow restriction within the system In these circumstances, starting with the seat base check all ducting connections for correct engagement and inspect ducting for signs of damage which could result in an air leak (for connection issues re-connect and test system). Only in the event of finding damage to the ducting of one of the units should the unit be replaced. Note that only the specific unit should be replaced Due to the design function of the system, both climate units in any one seat operate integrally. Therefore, if an issue is detected in one of the units then both units are shut down to protect the system until next ignition cycle. Under these circumstances, only replace the damaged unit and DO NOT replace both units

Check For Air Flow Specific DTCs

Diagnostic Guidance Notes

Once the diagnostic process detailed above has been carried out and it has been identified that there has not been a failure of any of the climate units, then refer back to the relevant climate system DTC codes that have been recorded
DTC codes listed that end in 7A or 98 indicate a possible air leak or air flow restriction within the system
In these circumstances, starting with the seat base check all ducting connections for correct engagement and inspect ducting for signs of damage which could result in an air leak (for connection issues re-connect and test system). Only in the event of finding damage to the ducting of one of the units should the unit be replaced. Note that only the specific unit should be replaced
Due to the design function of the system, both climate units in any one seat operate integrally. Therefore, if an issue is detected in one of the units then both units are shut down to protect the system until next ignition cycle. Under these circumstances, only replace the damaged unit and DO NOT replace both units