ACC Combination Switch Removal, Installation, and Test: Test

ACC Combination Switch Internal Resistance Check: 

1. Measure the resistance between the ACC combination switch 12P connector (male terminals) terminals No. 3 and No. 10 according to the table.

   If there is no resistance in one or more positions, replace the ACC combination switch.

   ACC COMBINATION SWITCH INTERNAL RESISTANCE SPECIFICATION
   
   

   Position	Resistance at normal ambient temperature
   OFF (Released)	2.0-2.4 kΩ
   MAIN (Pressed and held)	54.3-66.3 Ω
   CANCEL (Pressed and held)	165.0-201.6 Ω
   SET-(Pressed and held)	401.8-491.0 Ω
   RES+(Pressed and held)	802.7-981.1 Ω

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Distance/LKAS Switch Internal Resistance Check: 

1. Measure the resistance between the ACC combination switch 12P connector (male terminals) terminals No. 4 and No. 10 according to the table.

   If there is no resistance in one or more positions, replace the ACC combination switch.

   DISTANCE/LKAS SWITCH INTERNAL RESISTANCE SPECIFICATION
   
   

   Position	Resistance at normal ambient temperature
   OFF (Released)	2.0-2.4 kΩ
   DISTANCE (Pressed and held)	401.8-491.0 Ω
   LKAS (Pressed and held)	21.3-26.1 Ω

Switch Illumination Circuit Check: 

1. Check the LED for illumination by applying power and ground to the terminals according to the table.
   NOTE: Important operating characteristic; diode bias cause a diode to fully conduct electricity in one direction (forward), while not at all in the opposite direction (reverse).

Courtesy of AMERICAN HONDA MOTOR CO., INC.

If the results are not as specified, replace the ACC combination switch.