M3 CHECK THE BRAKE BOOSTER AND VACUUM HOSES FOR LEAKS
Are any leaks or evidence of leaks found?
Yes | REPAIR or INSTALL new components as necessary. |
|---|---|
No | GO to M4 |
M4 CHECK THE VACUUM SENSOR WIRING FOR A SHORT TO VOLTAGE
Ignition OFF. Disconnect ABS module C135. Disconnect brake booster vacuum sensor C1609. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C135-36 | Ground | |
C135-44 | Ground | |
C135-45 | Ground |
Is any voltage present?
Yes | REPAIR the circuit. |
|---|---|
No | GO to M5 |
M5 CHECK THE VACUUM SENSOR WIRING FOR A SHORT TO GROUND
Ignition OFF. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C135-36 | Ground | |
C135-44 | Ground | |
C135-45 | Ground |
Are the resistances greater than 10,000 ohms?
Yes | GO to M6 |
|---|---|
No | REPAIR the circuit. |
M6 CHECK THE VACUUM SENSOR WIRING FOR AN OPEN
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.