Break Scan Diag tool errors on ABS trouble light

[budhartel]

My 2001 Mustang GT fails to send error code when i get an ABS trouble light.

my ABS trouble light comes on after about 10 to 15 min. driving.

When the error occurs and i try to scan, i get an error telling me to check the connection. then there is no error when i scan after the trouble light clears.

i am using the Actron CP9449 BreakScan tool and i had the same problem with another brand i tried and returned.

any ideas?

 

[bdcardinal]

verify communications between DLC and ABS module. i think the workshop manual says to replace with known good unit and retest.

 

[bdcardinal]

Condition
No communication with the anti-lock brake control module

Possible Sources Action

Ignition switch position.
CJB Fuse 29 (15A).
Circuitry.
Anti-lock brake control module.

A1 CHECK CIRCUIT 601 (LB/PK) FOR AN OPEN




Anti-Lock Brake Control Module C141




Measure the voltage between anti-lock brake control module C141 Pin 8, Circuit 601 (LB/PK), harness side and ground.


Is the voltage greater than 10 volts?
Yes
GO to A2.

No
REPAIR the circuit. REPEAT the self-test.
A2 CHECK THE ANTI-LOCK BRAKE CONTROL MODULE GROUNDS

Measure the resistance between anti-lock brake control module C141 Pin 12, Circuit 1205 (BK), harness side and ground; and between anti-lock brake control module C141 Pin 15, Circuit 397 (BK/WH), harness side and ground.


Are the resistances less than 5 ohms?
Yes
GO to A3.

No
REPAIR the circuit in question. REPEAT the self-test.
A3 CHECK FOR CORRECT ABS MODULE OPERATION
Disconnect the ABS connector.
Check for:
corrosion
pushed-out pins

Connect the ABS connector and make sure it seats correctly.
Operate the system and verify the concern is still present.


Is the concern still present?
Yes
INSTALL a new ABS module. REFER toModule in this section. TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.