– 49 –
–
+
ELEC
SIGNALING SYSTEM (for special edition models)
2. Diode 2
• Remove the diode from the coupler.
• Connect the pocket tester (
Ω
×
1) to the
diode terminals as shown.
• Check the diode for continuity as follows.
*
CORRECT
Tester (+) lead
→
Blue/Black terminal
1
Tester (–) lead
→
White/Blue terminal
2
Continu-
ity
Tester (+) lead
→
White/Blue terminal
2
Tester (–) lead
→
Blue/Black terminal
1
No conti-
nuity
This circuit is not faulty.
NOTE:
When you switch the tester’s positive and neg-
ative probes, the readings in the left chart will
be reversed.
1
2
L
/
B
W
/
L
INCORRECT
Replace the diode 2.
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