Ford 2003 Mustang Workshop Manual page 658

Test Step
G1 CHECK THE VEHICLE
COMPONENTS
Check for correct wheel and tire
size, front-to-rear and side-to-
side.
Check for excessive bearing
end play.
Check the anti-lock brake
sensor indicator for a
deformation or missing teeth.
Are the conditions OK?
G2 TEST DRIVE THE VEHICLE
Enter the following diagnostic
mode on the diagnostic tool:
CLEAR the DTCs.
Key in OFF position.
Key in ON position.
Test drive the vehicle over 24
kph (15 mph).
Enter the following diagnostic
mode on the diagnostic tool:
Retrieve DTCs.
Is DTC C1222 retrieved?
PINPOINT TEST H: DTC C1233 (LF), C1234 (RF), C1235 (RR), C1236
(LR), ANTI-LOCK BRAKE SENSOR INPUT SIGNAL MISSING
H1 CHECK THE SUSPECT ANTI-LOCK BRAKE
SENSOR
Check the suspect anti-lock brake sensor
mounting.
Check the suspect anti-lock brake sensor for
excessive dirt build up, obstructions, and
damage.
Is the suspect anti-lock brake sensor and
mounting OK?
H2 CHECK THE SUSPECT ANTI-LOCK BRAKE
SENSOR INDICATOR
Check the suspect anti-lock brake sensor
indicator for corrosion, nicks, bridged teeth,
damaged teeth, correct mounting, and alignment
with the anti-lock brake sensor.
Check the air gap and bearing end play.
Is the suspect anti-lock brake sensor
indicator OK?
H3 CHECK THE ANTI-LOCK BRAKE SENSOR
OUTPUT
Key in ON position.
Enter the following diagnostic mode on the
diagnostic tool: CLEAR the DTCs..
Key in OFF position.
Key in ON position.
Yes
GO to
No
REPAIR as necessary. CLEAR the DTCs. REPEAT the
self-test.
Yes
INSTALL a new anti-lock brake control module; REFER
to Module
No
If another DTC is retrieved, GO to the Anti-Lock Brake
Control Module Diagnostic Trouble Code (DTC) index.
If no DTCs are retrieved, the system is OK.
Test Step
Result / Action to Take
G2 .
. REPEAT the self-test.
Result / Action to Take
Yes
GO to H2 .
No
REPAIR as necessary. CLEAR the
DTCs. REPEAT the self-test.
Yes
GO to H3 .
No
INSTALL a new anti-lock brake sensor
indicator; REFER to
Sensor—Rear
REPEAT the self-test.
Yes
INSTALL a new anti-lock brake control
module; REFER to
the self-test.
Sensor—Front or
. CLEAR the DTCs.
Module . REPEAT