Pinpoint Test C: The Anti -Lock Brake System (Abs) Control Module Does Not Respond To The Diagnostic Tool

WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

C1 CHECK THE ABS CONTROL MODULE C135 FOR DAMAGE
- Key in OFF position.
- Disconnect: ABS Control Module C135.
- Inspect the ABS control module C135.
- Is the ABS control module C135 OK?
1. Yes : GO to C2.
2. No : REPAIR the ABS control module C135. CARRY OUT the data link diagnostics test.
C2 CHECK CIRCUIT 70 (LB/WH) BETWEEN DLC C251 AND ABS CONTROL MODULE C135 FOR AN OPEN
- Measure the resistance between the ABS control module C135 pin 16, circuit 70 (LB/WH), harness side and DLC C251 pin 7, circuit 70 (LB/WH), harness side.
Fig 1: Checking Circuit 70 (LB/WH) Between DLC C251 And ABS Control Module C135 For An Open
Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
1. Yes : GO to C3.
2. No : REPAIR the circuit. CARRY OUT the data link diagnostics test.
C3 CHECK FOR CORRECT ABS CONTROL MODULE OPERATION
- Disconnect all the ABS control module connectors.
- Check for:
  - Corrosion
  - Pushed-out pins
- Connect all the ABS control module connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
1. Yes : INSTALL a new ABS control module. REFER to ANTI-LOCK CONTROL . CARRY OUT the data link diagnostics test.
2. No : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.