PINPOINT TEST AD : NO HIGH SPEED CONTROLLER AREA NETWORK 1 (HS-CAN1)
COMMUNICATION, ALL MODULES ARE NOT RESPONDING
NOTE: Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure.
AD1 CHECK THE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE
Ignition OFF. Disconnect the diagnostic scan tool cable from the DLC. Inspect the DLC pins 6 and 14 for damage.
Are DLC pins 6 and 14 OK?
Yes | GO to AD2 |
|---|---|
No | REPAIR the DLC as necessary. |
AD2 CHECK THE HS-CAN1 (HIGH SPEED-CONTROLLER AREA NETWORK 1) TERMINATION RESISTANCE
Disconnect the negative battery cable. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C251-6 | C251-14 |
Is the resistance between 54 and 66 ohms?
Yes | GO to AD3 |
|---|---|
No | GO to AD5 |
AD3 CHECK THE HS-CAN1 (HIGH SPEED-CONTROLLER AREA NETWORK 1) (+) AND HS-CAN1 (HIGH SPEED-CONTROLLER AREA NETWORK 1) (-) CIRCUITS FOR A SHORT TO GROUND
Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C251-6 | Ground | |
C251-14 | Ground |
Are the resistances greater than 1,000 ohms?
Yes | GO to AD4 |
|---|---|
No | GO to AD11 |
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.