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Trailer Brake Control Switch

Tester Connection Condition Specified Condition
I39-8 (SRF) - I39-5 (SRRT) Always 2 kΩ to 3.09 kΩ
I39-8 (SRF) - I39-16 (SRW1) Manual trailer brake output slider operated to maximum position (100%) Below 1 kΩ
Manual trailer brake output slider not operated (0%) 2 kΩ to 3 kΩ
I39-8 (SRF) - I39-14 (SRW2) Manual trailer brake output slider operated to maximum position (100%) 2 kΩ to 3 kΩ
Manual trailer brake output slider not operated (0%) Below 1 kΩ
I39-8 (SRF) - I39-15 (SRR) Always 12 Ω to 14 Ω
I39-4 (GA+) - I39-6 (GND) GAIN (+) selection button pressed Below 20 Ω
GAIN (+) selection button not pressed 100 kΩ or higher
I39-7 (GA-) - I39-6 (GND) GAIN (-) selection button pressed Below 20 Ω
GAIN (-) selection button not pressed 100 kΩ or higher
I39-3 (TAIL) - I39-1 (ILL-) Battery positive (+) → I39-3 (TAIL)
Battery negative (-) → I39-1 (ILL-)
Illuminates