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Trailer Brake Control Switch

Tester Connection Condition Specified Condition
K 72-8 (SRF) - K 72-5 (SRRT) Always 2 to 3.09 kΩ
K 72-8 (SRF) - K 72-16 (SRW1) Manual trailer brake output slider operated to maximum position (100%) Below 1 kΩ
K 72-8 (SRF) - K 72-16 (SRW1) Manual trailer brake output slider not operated (0%) 2 to 3 kΩ
K 72-8 (SRF) - K 72-14 (SRW2) Manual trailer brake output slider operated to maximum position (100%) 2 to 3 kΩ
K 72-8 (SRF) - K 72-14 (SRW2) Manual trailer brake output slider not operated (0%) Below 1 kΩ
K 72-8 (SRF) - K 72-15 (SRR) Always 12 to 14 Ω
K 72-4 (GA+) - K 72-6 (GND) GAIN (+) selection button pressed Below 20 Ω
K 72-4 (GA+) - K 72-6 (GND) GAIN (+) selection button not pressed 100 kΩ or higher
K 72-7 (GA-) - K 72-6 (GND) GAIN (-) selection button pressed Below 20 Ω
K 72-7 (GA-) - K 72-6 (GND) GAIN (-) selection button not pressed 100 kΩ or higher