Pinpoint Test A: No Communication With The Anti-Lock Brake System (Abs) Module

WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

A1 CHECK CIRCUIT 533 (TN/RD) FOR AN OPEN
- Key in OFF position.
- Disconnect: ABS Module C135.
- Key in ON position.
- Measure the voltage between the ABS module C135-8, circuit 533 (TN/RD), harness side and ground.
  
  Fig 1: Measuring Voltage Between ABS Module C135-8, Circuit 533 (TN/RD), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes : GO to A2.
- No : REPAIR the circuit. TEST the system for normal operation.
A2 CHECK CIRCUIT 530 (LG/YE) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between the ABS module C135-15, circuit 530 (LG/YE), harness side, and ground.
  
  Fig 2: Measuring Resistance Between ABS Module C135-15, Circuit 530 (LG/YE), Harness Side, And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : REFER to MODULE COMMUNICATIONS NETWORK to continue diagnosis of the communications network.
- No : REPAIR the circuit. TEST the system for normal operation.