Possible Causes
PINPOINT TEST B : THE LH (LEFT-HAND) FRONT POWER WINDOW IS INOPERATIVE/DOES NOT OPERATE CORRECTLY - WITH MEMORY
DRIVER SEAT
B1 CHECK FOR DDM (DRIVER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
Ignition ON. Using a diagnostic scan tool, perform DDM self-test.
Are any DDM Diagnostic Trouble Codes (DTCs) present?
Yes | For DTC B1088:83 and B1088:87, GO to B2 For all other Diagnostic Trouble Codes (DTCs), REFER to the DDM DTC Chart in this section. |
|---|---|
No | GO to B8 |
B2 CHECK FOR VOLTAGE TO THE MASTER WINDOW CONTROL SWITCH
Ignition OFF. Disconnect: Master Window Control Switch C535 (coupe) or C504 (convertible). Ignition ON. For coupe, measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C535-1 | Ground |
For convertible, measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C504-10 | Ground |
Is the voltage greater than 11 volts?
Yes | GO to B3 |
|---|---|
No | REPAIR the circuit. |
B3 CHECK THE MASTER WINDOW CONTROL SWITCH GROUND CIRCUIT
Ignition OFF. For coupe, measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C535-4 | Ground |
For convertible, measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C504-11 | Ground |
Is the resistance less than 3 ohms?
Yes | GO to B5 |
|---|---|
No | GO to B4 |
B4 CHECK THE MASTER WINDOW CONTROL SWITCH GROUND CIRCUIT FOR AN OPEN
Disconnect: DDM C501A. For coupe, measure:
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.