Sleep Mode

The isolation switch goes into sleep mode as soon as the engine is switched off. The current draw of the isolation switch drops below 1 mA. The isolation switch comes out of sleep mode if:

• KL15 is recognized.
• Starter battery voltage exceeds 13.8 volts (charging mode)

Failure of KATON signal: 

If the KATON  signal is not received due to:

• Open or short to B+ - isolation switch closes for 4 seconds after start-up, TD received.
• Short to B- - isolation switch opens 60 seconds after receiving TD.