Ford 2003 Mustang Workshop Manual page 653

Measure the resistance between anti-lock brake control module
C135 Pin 12, Circuit 1205 (BK), harness side and ground; and
between anti-lock brake control module C135 Pin 15, Circuit 397
(BK/WH), harness side and ground.
Are the resistances less than 5 ohms?
PINPOINT TEST D: DTC B1484, BRAKE PEDAL INPUT OPEN
CIRCUIT
D1 CHECK THE STOPLAMPS FOR CORRECT OPERATION
Depress the brake pedal while checking the stoplamps.
Do the stop lamps illuminate?
D2 CHECK THE BRAKE PEDAL INPUT TO THE ANTI-LOCK
BRAKE CONTROL MODULE
Key in OFF position.
Disconnect: Anti-Lock Brake Control Module C135.
Measure the voltage between anti-lock brake control module
C135 Pin 6, Circuit 511 (LG), harness side and ground, while
depressing and releasing the brake pedal.
Is the voltage greater than 10 volts with the brake pedal
depressed and zero volts with the brake pedal released?
PINPOINT TEST E: DTC C1095, ABS HYDRAULIC PUMP MOTOR
FAILURE
Test Step
Test Step
Yes
INSTALL a new
anti-lock brake
control module;
REFER to Module
REPEAT the self-
test.
No
REPAIR the circuit
in question.
CLEAR the DTCs.
REPEAT the self-
test.
Result / Action to Take
Yes
GO to D2 .
No
REFER to Section 417-
01 .
Yes
INSTALL a new anti-lock
brake control module;
REFER to Module .
REPEAT the self-test.
No
REPAIR Circuit 511 (LG)
and Circuit 810 (RD/LG)
as necessary. CLEAR
the DTCs. REPEAT the
self-test.
Result / Action to
Take
.