Ford 2003 Mustang Workshop Manual page 3878

Is the voltage greater than 10 volts?
B14 CHECK CIRCUIT 646 (YE/WH) FOR SHORT TO
GROUND BETWEEN GEM AND BJB
Measure the resistance between GEM C201d Pin 12,
Circuit 646 (YE/WH), harness side and ground.
Is the resistance greater than 10,000 ohms?
B15 CHECK CIRCUIT 646 (YE/WH) FOR OPEN BETWEEN
GEM AND BJB
Measure the resistance between GEM C201d Pin 12,
Circuit 646 (YE/WH), harness side and BJB wiper ON/OFF
relay Pin 1, Circuit 646 (YE/WH), harness side.
Is the resistance less than 5 ohms?
B16 CHECK CIRCUITS 65 (DG) AND 61 (YE/RD) FOR OPEN
CONDITION BETWEEN BJB AND CJB
Disconnect: Wiper HIGH/LOW Relay.
Trigger the GEM active command WIPER RLY to ON.
Measure the voltages between BJB wiper HIGH/LOW
relay Pin 86, Circuit 65 (DG), harness side and ground;
and between BJB wiper HIGH/LOW relay Pin 30, Circuit
61 (YE/RD), harness side and ground.
Are the voltages greater than 10 volts?
B17 ISOLATE THE PROBLEM BETWEEN THE GEM AND
THE BJB
Trigger the GEM active command WIPER RLY to ON.
Yes
GO to B15 .
No
REPAIR Circuit 646
(YE/WH). REPEAT the self-
test. CLEAR the DTCs.
Yes
INSTALL a new GEM. For
additional information REFER
to Section 419-10 . REPEAT
the self-test. CLEAR the
DTCs.
No
REPAIR Circuit 646
(YE/WH). REPEAT the self-
test. CLEAR the DTCs.
Yes
GO to B17 .
No
REPAIR circuit in question.
REPEAT the self-test.
CLEAR the DTCs.
Yes