Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3040-5, Component Side | C3040-8, 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 VHS27 (WH/OG) or RHS10 (BU/OG) for an open or high resistance. GO to Z22 |
|---|---|
No | INSTALL a new passenger seat cushion blower motor. REFER to: Front Seat Cushion Blower Motor (501-10A Front Seats, Removal and Installation). GO to Z22 |
Z5 CONFIRM THE FAULT WHILE MONITORING THE SCME (FRONT SEAT CLIMATE CONTROL MODULE) SEAT BACK THERMO-ELECTRIC DEVICE TEMPERATURE (PBKTEMP) AND SEAT CUSHION THERMO-ELECTRIC DEVICE TEMPERATURE (PCSHTEMP) PARAMETER IDENTIFICATIONS (PIDS)
Set the passenger seat to OFF. Using a diagnostic scan tool, clear the SCME Diagnostic Trouble Codes (DTCs). Using a diagnostic scan tool, monitor the SCME PBKTEMP and PCSHTEMP 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 passenger 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 PCSHTEMP PID increases incrementally and is greater than 15° C (27° F) of the PBKTEMP PID, GO to Z6 If the PCSHTEMP PID increases quickly (temperature "jumps" and does not increase incrementally) and is greater than 15° C (27° F) of the PBKTEMP PID, GO to Z16 |
Z6 COMPARE OPERATION OF THE DRIVER AND PASSENGER SEATS
With the engine running, set both front seats to HIGH cool. Note the airflow exhausting from the passenger seat cushion blower motor and compare it to the airflow exhausting from the driver seat cushion blower motor. Carry out a wiggle test of the wire harnesses between the SCME and the passenger seat cushion blower motor while monitoring blower operation. The blower should operate consistently and not change speeds.
Is the airflow exhausting from the passenger seat cushion blower motor comparable to the airflow exhausting from the driver seat cushion blower motor with no change in operation when carrying out the wiggle test?
Yes | GO to Z7 |
|---|---|
No | If the airflow exhausting from the passenger seat cushion blower motor is not comparable to the airflow exhausting from the driver seat cushion blower motor, GO to Z8 If the passenger seat cushion blower motor operation changed while carrying out the wiggle test, IDENTIFY and REPAIR the wiring fault. |
Z7 COMPARE OPERATION OF THE DRIVER AND PASSENGER SEATS WHILE OCCUPIED
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.