Pinpoint Test A: No Communication With The Abs Module

A1 CHECK CIRCUIT 15-CF6A (GN/YE) FOR AN OPEN 

• Disconnect: ABS Module C135.
• Key in ON position.
• Measure the voltage between the ABS module C135 pin 4, circuit 15-CF6A (GN/YE), harness side and ground.
  Fig 1: Checking Circuit 15-CF6A (GN/YE) For Open

  Courtesy of FORD MOTOR CO.
• Is the voltage greater than 10 volts? 

Yes 

Go to A2.

No 

REPAIR circuit 15-CF6A (GN/YE) or 15-CF6 (GN/YE) as necessary. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

A2 CHECK CIRCUIT 91-CF6 (BK/YE) FOR AN OPEN 

• Key in OFF position.
• Measure the resistance between the ABS module C135 pin 16, circuit 91-CF6 (BK/YE), harness side and ground.
  Fig 2: Measuring Resistance Between ABS Module C135 Pin 16 Circuit 91-CF6 (BK/YE) Harness Side And Ground

  Courtesy of FORD MOTOR CO.
• Is the resistance less than 5 ohms? 

Yes 

INSTALL a new ABS module. REFER to HYDRAULIC CONTROL UNIT (HCU) . REPEAT the self-test. TEST the system for normal operation.

No 

REPAIR circuit 91-CF6 (BK/YE) or 91-CF1 (BK/BU) as necessary. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.