Ford 2003 Mustang Workshop Manual page 3558

CLUSTER
Measure the voltage between the instrument cluster C220b Pin
12, Circuit 20 (WH/LB), harness side and ground.
Is the voltage greater than 10 volts?
A4 CHECK GROUND CIRCUIT 397 (BK/WH) FOR AN OPEN
Key in OFF position.
Measure the resistance between instrument cluster C220b Pin
20, Circuit 397 (BK/WH), harness side and ground.
Is the resistance less than 5 ohms?
A5 CHECK GROUND CIRCUIT 1205 (BK) FOR OPEN
Measure the resistance between instrument cluster C220b Pin
1, Circuit 1205 (BK), harness side and ground.
Is the resistance less than 5 ohms?
PINPOINT TEST B: THE ANTI-THEFT INDICATOR IS
ALWAYS/NEVER ON — NO THREE SECOND THEFT INDICATOR
PROVE OUT
B1 ENTER THE INSTRUMENT CLUSTER ACTIVE
COMMAND MODE
Test Step
Yes
GO to A4 .
No
REPAIR Circuit 20
(WH/LB). REPEAT the
self-test. CLEAR the
DTCs.
Yes
GO to A5 .
No
REPAIR the circuit.
REPEAT the self-test.
CLEAR the DTCs.
Yes
REFER to Section 418-
00 .
No
REPAIR the circuit.
REPEAT the self-test.
CLEAR the DTCs.
Result / Action to Take