DTC B1016 -Rear Defrost Switch Request Input Circuit Low: Notes

For a complete wiring diagram  , refer to appropriate SYSTEM WIRING DIAGRAMS article.

Theory of Operation 

The switch input changes when the switch is pushed down. A stored DTC B1016 indicates that the Rear Defrost mode switch was stuck in a pushed position for more than two minutes, but has since returned to its normal state. An active DTC B1016 indicates that the Rear Defrost mode switch is stuck in a pushed position. An active DTC B1016 will also prevent proper switch and status indicator function as evidenced by not being able to turn the Rear Defrost status indicator either on if off or off if on. 

• When Monitored: 

  With the ignition on. 

• Set Condition: 

  If the Rear Defrost mode switch stays in a pushed position for more than two minutes. This DTC has a maturing time of two minutes and a de-maturing time of two seconds. If the DTC's status changes from active to stored it will stay in memory for 100 ignition cycles.