Anti-Lock Brake System (ABS) and Stability Control — 2016 workshop reference 2973

Make sure the vehicle battery terminals and cables are free of any corrosion and other contaminants. Make sure the vehicle battery terminals are tightened to their correct torque specifications. Make sure BJB fuse 5 (50A) and the fuse socket are OK.

PINPOINT TEST H : ABS (ANTI-LOCK BRAKE SYSTEM) PUMP MOTOR FAULTS

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector

H1 VERIFY ALL WIRING CONNECTIONS

Ignition OFF. Disconnect ABS module C135. Using a good light source, inspect each connector terminal for any corrosion. Inspect the connector for any pushed-out terminals. Using a suitable mating terminal, check each connector terminal for deformed or enlarged contacts by comparing the mating terminal's fit between each of the following pins:

C135-1 C135-14

Is the connector free of terminal corrosion, pushed-out terminals and spread terminals?

Yes	GO to H2
No	REPAIR the affected terminal. Refer to Wiring Diagrams Cell 5 for schematic and connector information.

H2 CHECK PUMP MOTOR OPERATION

Connect ABS module C135. Ignition ON. Using a diagnostic scan tool, activate the ABS pump motor (PMP_MTR) active command. Listen for the ABS pump motor noise.

Does the ABS pump motor run for approximately 2 seconds?

Yes	GO to H3
No	GO to H4

H3 CHECK FOR FAULT REPEATABILITY

Using a diagnostic scan tool, clear the ABS module Diagnostic Trouble Codes (DTCs). Ignition OFF. Ignition ON. Test drive the vehicle at speeds greater than 20 km/h (12 mph) and carry out at least 1 ABS stop. Ignition OFF. Ignition ON. Using a diagnostic scan tool, carry out the ABS module self-test. Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).

Are any ABS module Diagnostic Trouble Codes (DTCs) retrieved?

Yes	For DTC C0020:11, C0020:12, C0020:13 and C0020:71, GO to H4 For all other ABS module Diagnostic Trouble Codes (DTCs), GO to the DTC Chart: ABS Module.
No	The concern that caused the DTC is not present at this time. DISCONNECT and INSPECT ABS module C135. CLEAR or REPAIR the connector as necessary. ADDRESS the root cause of any connector or pin issues.

Source reference 2973

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.