Ambient Temperature | Resistance |
|---|---|
40-50° C (104-122° F) | 630-428 ohms |
Is the resistance within the limits indicated?
Yes | GO to AF18 |
|---|---|
No | GO to AF4 |
AF4 CHECK THE DRIVER SEAT CUSHION BLOWER MOTOR THERMISTOR
Disconnect: Driver Seat Cushion Blower Motor C3035. Measure the component side resistance between:
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3035-5, Component Side | C3035-8, Component Side |
Compare the measured resistance value with the following table:
Ambient Temperature | Resistance |
|---|---|
0-10° C (32-50° F) | 2,782-1,663 ohms |
10-20° C (50-68° F) | 1,837-1,140 ohms |
20-30° C (68-86° F) | 1,260-806 ohms |
30-40° C (86-104° F) | 893-570 ohms |
40-50° C (104-122° F) | 630-428 ohms |
Is the resistance within the limits indicated?
Yes | REPAIR circuit VHS26 (VT) or RHS05 (YE/VT) for an open or high resistance. GO to AF22 |
|---|---|
No | INSTALL a new driver seat cushion blower motor. REFER to: Front Seat Cushion Blower Motor (501-10A Front Seats, Removal and Installation). GO to AF22 |
AF5 CONFIRM THE FAULT WHILE MONITORING THE SCME (FRONT SEAT CLIMATE CONTROL MODULE) SEAT BACK THERMAL ELECTRIC DEVICE TEMPERATURE (BKTMP) AND SEAT CUSHION THERMAL ELECTRIC DEVICE TEMPERATURE (CSHTEMP) PARAMETER IDENTIFICATIONS (PIDS)
Set the driver seat to OFF. Using a diagnostic scan tool, clear the SCME Diagnostic Trouble Codes (DTCs). Using a diagnostic scan tool, monitor the SCME BKTMP and CSHTEMP Parameter Identifications (PIDs).
NOTE: A crushed seat cushion foam pad may be the cause of the fault, making it necessary to occupy the seat to recreate and identify the fault. Attempt to recreate the fault. Start the vehicle and set the driver seat to HIGH heat for at least 15 minutes while occupying the seat.
Do the Parameter Identifications (PIDs) increase incrementally (gradually) and stay within 15° C (27° F) of each other?
Yes | Fault not present at this time. Fault may have been set due to a past failure, incorrect use of the climate controlled seat system by repeated switching between heat and cool modes or due to excessive passenger compartment temperature. |
|---|---|
No | If the CSHTEMP PID increases incrementally and is greater than 15° C (27° F) of the BKTMP PID, GO to AF6 If the CSHTEMP PID increases quickly (temperature "jumps" and does not increase incrementally) and is greater than 15° C (27° F) of the BKTMP PID, GO to AF16 |
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.