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

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.

F1 CHECK THE ABS MODULE POWER SUPPLY

Key in OFF position.
Disconnect: ABS Module C1462.
Key in ON position.

Measure the voltage between ABS module C1462, harness side and ground as follows:

ABS MODULE CONNECTOR-PIN REFERENCE

ABS Module Connector Pin	Circuit
C1462-1	534 (YE/LG)
C1462-17	22 (LB/BK)
C1462-29	677 (LB)
C1462-32	483 (RD)

Fig 1: Checking ABS Module Power Supply

Courtesy of FORD MOTOR CO.

Are the voltages greater than 10 volts?

Yes: GO to F2.

No: INSPECT BJB fuses 1 (5A), 24 (50A), 31 (50A) or SJB fuse 34 (5A) for an open. If OK, REPAIR the circuit(s) in question. REPEAT the self-test.

F2 CHECK CIRCUIT 57 (BK) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between ABS module C1462-16, circuit 57 (BK) harness side and ground; and between ABS module C1462-47, circuit 57 (BK) harness side and ground.
  
  Fig 2: Checking Circuit 57 (BK) For An Open
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
Yes: CHECK the module communications network. REFER to MODULE COMMUNICATIONS NETWORK to continue diagnosis of the module communications network.

No: REPAIR the circuit. REPEAT the self-test.