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Pinpoint Test K: Testing

CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

Fig 1: ABS Test Connector End View (C126)

G07848294

Courtesy of FORD MOTOR CO.

K1 CHECK VOLTAGE TO THE ABS MODULE
- Key in OFF position.
- Disconnect: ABS Module C149.
- Key in ON position.
- Measure the voltage between ABS module C149-32; circuit 640 (RD/YE), harness side and ground.
  
  Fig 2: Checking Voltage To ABS Module
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Yes : GO to K3.

No : VERIFY central junction box (CJB) fuse 2 (10A) is OK. If OK, GO to K2.
K2 CHECK CIRCUIT 640 (RD/YE) FOR AN OPEN
- Key in OFF position.
- Disconnect: ABS Factory Test Connector C126.
- Key in ON position.
- Measure the voltage between ABS factory test connector C126-6, circuit 640 (RD/YE), harness side and ground.
  
  Fig 3: Checking Circuit 640 (RD/YE) For An Open
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Yes : REPAIR the circuit between the ABS factory test connector C126-5 and the ABS module 149-32 or INSTALL a new wire assembly jumper as needed.

No : REPAIR circuit 640 (RD/YE). TEST the system for normal operation.
K3 CHECK CIRCUIT 530 (LG/YE) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between ABS module C149-16, circuit 530 (LG/YE), harness side and ground.
  
  Fig 4: Checking Circuit 530 (LG/YE) For An Open
  Courtesy of FORD MOTOR CO.
- Is the resistances less than 5 ohms?
Yes : CHECK the module communications network. REFER to MODULE COMMUNICATIONS NETWORK .

No : REPAIR circuit 530 (LG/YE). TEST the system for normal operation.