Ford 2003 Mustang Workshop Manual page 691

mode on the diagnostic tool:
CLEAR the DTCs.
Key in OFF position.
Key in ON position.
Test drive the vehicle over 24
km/h (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.
Have an assistant monitor the anti-lock brake
control module PIDs LF_WSPD, RF_WSPD,
LR_WSPD, and RR_WSPD while driving at
various speeds.
NOTE: the vehicle must be driven 16 km (10
miles) during this test step.
Test drive the vehicle for 16 km (10 miles).
Are the anti-lock brake control module PIDs
approximately the same at all times?
PINPOINT TEST I: THE YELLOW ABS WARNING INDICATOR DOES
NOT SELF-CHECK
INSTALL a new anti-lock brake control module;
REFER to
No
If another DTC is retrieved, GO to the Anti-Lock Brake
Control Module Diagnostic Trouble Code (DTC) index.
If no DTCs are retrieved, system is OK.
Test Step
Module . 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
Front or Sensor Indicator—Rear
CLEAR the DTCs. REPEAT the self-test.
Yes
INSTALL a new anti-lock brake control
module; REFER to Module
the self-test.
No
INSTALL a new anti-lock brake sensor;
REFER to Sensor—Front
Rear . CLEAR the DTCs. REPEAT the
self-test.
Sensor Indicator—
.
. REPEAT
or Sensor—