Ford 2003 Mustang Workshop Manual page 3562

NOTE: Large metallic objects, electronic debit transponder devices or a second key on the same
key ring as the PATS ignition key may cause vehicle starting problems and record DTCs under
certain conditions. If a fault cannot be identified, examine the customer's key for such objects or
devices. If present, inform the customer that they need to keep these objects from touching the
PATS ignition key while starting the engine. These objects and devices cannot damage the
PATS ignition key, but can cause a momentary problem if they are too close to the key during
engine start. If a problem occurs, turn ignition OFF and restart the engine with all other objects
on the key ring held away from the ignition key. Check to ensure the encoded ignition key used
by the customer is an approved Ford encoded ignition key (encoded ignition keys from Rotunda,
Ilco, Curtis, or Strattec are approved Ford encoded ignition keys).
F1 USE THE DTCS FROM THE INSTRUMENT
CLUSTER SELF-TESTS
Use the recorded results from the Instrument
Cluster Continuous and On-Demand Self-Tests.
Is DTC B1600 retrieved?
F2 PROGRAM A NEW ENCODED IGNITION KEY
Key in OFF position.
NOTE: Check to make sure the customer and
replacement encoded ignition keys are approved
Ford encoded PATS ignition keys. Unapproved
PATS keys do not always operate correctly over
different temperature ranges (encoded ignition
keys from Rotunda, Ilco, or Strattec are approved
encoded ignition keys).
Cut a new encoded ignition key.
Key in ON position.
Program the new encoded ignition key; for
additional information, refer to
Programming—Erase All Key Codes and Program
Two Keys .
Enter the following diagnostic mode on the
diagnostic tool: Instrument Cluster On-Demand
Self-Test.
Is DTC B1600 still present?
F3 INSTALL A NEW PATS TRANSCEIVER
Key in OFF position.
Install a new PATS transceiver; for additional
information, refer to
Transceiver .
Key in ON position.
NOTE: Use the customer's original encoded
ignition key, not the encoded ignition key that was
cut in the previous step.
Enter the following diagnostic mode on the
diagnostic tool: Instrument Cluster On-Demand
Self-Test.
Is DTC B1600 retrieved?
PINPOINT TEST G: THE ANTI-THEFT SYSTEM DOES NOT OPERATE
Test Step
Key
Module—Passive Anti-Theft
Result / Action to Take
Yes
GO to F2 .
No
If other DTCs are retrieved, REFER
to Instrument Cluster Diagnostic
Trouble Code (DTC) Index.
If no DTCs are retrieved, system is
OK.
Yes
GO to F3 .
No
If no other DTCs are retrieved,
system is OK.
If other DTCs are retrieved, REFER
to Instrument Cluster Diagnostic
Trouble Code (DTC) Index.
Yes
INSTALL a new instrument cluster;
for additional information, REFER to
Section 413-01 . CYCLE the ignition
to RUN using two encoded ignition
keys. Go To Pinpoint Test J
initialize the module. REPEAT the
self-test. CLEAR the DTCs.
No
System is OK.
to