Ford 2003 Mustang Workshop Manual page 3567

Is the resistance greater than 100 ohms?
I6 CHECK CIRCUIT 1216 (GY/OG) FOR OPEN
Key in OFF position.
Disconnect: PATS Transceiver C252.
Disconnect: Instrument Cluster C220a.
Measure the resistance between PATS transceiver
C252 Pin 3, Circuit 1216 (GY/OG), harness side and
instrument cluster C220a Pin 7, Circuit 1216 (GY/OG),
harness side.
Is the resistance less than 5 ohms?
I7 CHECK THE PATS TRANSCEIVER TRANSMIT
CIRCUIT FOR VOLTAGE — CIRCUIT 1215 (WH/LG)
Key in OFF position.
Connect: PATS Transceiver C252.
Connect: Instrument Cluster C220a.
Key in ON position.
Measure the voltage by back probing between PATS
transceiver C252 Pin 4, Circuit 1215 (WH/LG), harness
side and ground.
Is the voltage greater than 9 volts?
I8 CHECK THE PATS TRANSCEIVER TRANSMIT
CIRCUIT FOR OPEN — CIRCUIT 1215 (WH/LG)
Key in OFF position.
Disconnect: PATS Transceiver C252.
Measure the resistance between PATS transceiver
cluster; for additional information,
REFER to Section 413-01
CYCLE the ignition key 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
1216 (GY/OG). CLEAR the
DTCs. TEST the system for
normal operation.
Yes
GO to I7 .
No
REPAIR Circuit 1216 (GY/OG).
CLEAR the DTCs. TEST the
system for normal operation.
Yes
GO to I9 .
No
GO to I8 .
Yes
GO to I9 .
.