Ford 2003 Mustang Workshop Manual page 3568

C252 Pin 4, Circuit 1215 (WH/LG), harness side and
ground.
Is the resistance greater than 100 ohms?
I9 CHECK THE PATS TRANSMIT CIRCUIT FOR
CORRECT OPERATION — CIRCUIT 1215 (WH/LG)
Connect: PATS Transceiver C252.
Key in ON position.
Trigger the instrument cluster active command RF
SIGNAL to ON.
Measure the voltage by back probing between PATS
transceiver C252 Pin 4, Circuit 1215 (WH/LG), harness
side and ground.
Does the voltage drop from greater than 9 volts to
less than 1 volt when the instrument cluster active
command is triggered on?
I10 CHECK THE PATS SYSTEM WITH A NEW PATS
TRANSCEIVER INSTALLED
Key in OFF position.
Install a new PATS transceiver; for additional
information, refer to
System (PATS)
Key in ON position.
Enter the following diagnostic mode on the diagnostic
tool: Instrument Cluster On-Demand Self-Test.
Is DTC B1681 retrieved?
I11 CHECK THE PATS SYSTEM WITH NEW
INSTRUMENT CLUSTER
Key in OFF position.
Install a new instrument cluster; for additional
information, refer to
to RUN using two encoded ignition keys. Go to
Pinpoint Test J to initialize the module. REPEAT the
self-test. CLEAR the DTCs.
Key in ON position.
Enter the following diagnostic mode on the diagnostic
tool: Instrument Cluster On-Demand Self-Test.
Is DTC B1681 retrieved?
Anti-Theft—Passive Anti-Theft
.
Section 413-01 . Cycle the ignition
No
CHECK Circuit 1215 (WH/LG) for
short to ground. If the circuit is
OK, 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 to initialize the
module. REPEAT the self-test.
CLEAR the DTCs. If the circuit is
not OK, REPAIR Circuit 1215
(WH/LG). REPEAT the self-test.
CLEAR the DTCs.
Yes
GO to I10 .
No
CHECK Circuit 1215 (WH/LG) for
continuity to instrument cluster
C220aPin 8. If the circuit is OK,
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 to initialize the
module. REPEAT the self-test.
CLEAR the DTCs. If the circuit is
not OK, REPAIR Circuit 1215
(WH/LG). REPEAT the self-test.
CLEAR the DTCs.
Yes
GO to I11 .
No
System is OK.
Yes
REPAIR Circuit 397 (BK/WH), 20
(WH/LB), 1215 (WH/LG), and
1216 (GY/OG). REPEAT the self-
test. CLEAR the DTCs.
No
If no DTCs are retrieved, the
system is OK.
.
.