CM850 Electronic Control System – 019-436   Slow Idle Switch Circuit

General Information

TOC

Marine Applications


The slow idle switch is located on the control panel and has two settings. ON and OFF. The rocker switch is used to activate or disable the slow idle operation. The slow idle circuit consists of the Slow Idle signal, switch common ground and the rocker switch.

 
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Resistance Check

TOC

Marine Applications


If INSITE™ electronic service tool is available, monitor the switch for proper operation. If not, follow the troubleshooting procedures in this section.

Locate and remove the slow idle switch from the connector.

Adjust the multimeter to measure resistance.

Touch the multimeter probes to the slow idle signal switch prong (3)
and the batter ground prong switch prong (2).

Turn the switch to the OFF position and measure the resistance. The multimeter must show an open circuit (100k ohms or more).

If the circuit is not open, the switch has failed. Replace the switch.

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Check for Short Circuit to Ground

TOC

Marine Applications


Touch the multimeter probes to the slow idle switch signal prong (3)
and the battery ground prong (2).

Turn the switch to the ON position and measure the resistance. The multimeter must show an closed circuit (10 ohms or less).

If the circuit is not closed, the switch has failed. Replace the switch.

 
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Last Modified:  21-Mar-2005