Ford 2003 Mustang Workshop Manual page 3884

Is the voltage greater than 10 volts?
C8 CHECK CIRCUIT 686 (TN/RD) FOR SHORT TO GROUND
BETWEEN GEM AND BJB
Measure the resistance between GEM C201d Pin 6, Circuit 686
(TN/RD), harness side and ground.
Is the resistance greater than 10,000 ohms?
C9 CHECK CIRCUIT 686 (TN/RD) FOR AN OPEN CIRCUIT
BETWEEN GEM AND WASHER ON/OFF RELAY
Measure the resistance between GEM C201d Pin 6, Circuit 686
(TN/RD), harness side and washer ON/OFF relay Pin 1, Circuit
686 (TN/RD), harness side.
Is the resistance less than 5 ohms?
C10 CHECK CIRCUIT 941 (BK/WH) FOR SHORT TO BATTERY
BETWEEN BJB AND WASHER MOTOR
Disconnect: Washer Pump Motor C137.
Measure the voltage between washer pump C137 Pin 1, Circuit
941 (BK/WH), harness side and ground.
Is the voltage greater than 10 volts?
C11 CHECK CIRCUIT 941 (BK/WH)FOR OPEN BETWEEN THE BJB
AND THE WASHER MOTOR
Measure the resistance between washer pump C137 Pin 1, Circuit
941 (BK/WH), harness side and washer pump relay Pin 5, Circuit
941 (BK/WH), harness side.
Yes
GO to C9 .
No
REPAIR Circuit 686
(TN/RD). REPEAT the
self-test. CLEAR the
DTCs.
Yes
INSTALL a new GEM;
REFER to Section
419-10 . REPEAT the
self-test. CLEAR the
DTCs.
No
REPAIR Circuit 686
(TN/RD). REPEAT the
self-test. CLEAR the
DTCs.
Yes
REPAIR Circuit 941
(BK/WH). REPEAT
the self-test. CLEAR
the DTCs.
No
GO to C11 .
Yes
GO to C12 .
No