B2192
CIRCUIT DESCRIPTIONThe seat adjuster switch signal circuits are supplied 12 volts through resistors within the memory seat module. When a seat adjuster switch is pressed the signal circuit is grounded. Closing the signal circuit to ground pulls the signal circuit voltage low indicating to the memory seat module the switch status is active.
CONDITIONS FOR SETTING THE DTC
A seat adjuster switch input to the memory seat module is active for more than 20 seconds.
ACTION TAKEN WHEN THE DTC SETS
^ A history DTC will be stored in the memory seat module.
^ Memory seat module DTCs can only be set as history codes even if the fault is current.
^ No driver warning message will be displayed for these DTCs.
^ The seat adjuster function for which the DTC has set will be disabled for as long as the condition is current.
CONDITIONS FOR CLEARING THE DTC
Memory seat module DTCs can only be cleared by using a scan tool or the IPC clearing DTCs feature.
DIAGNOSTIC AIDS
^ If the switch status on the scan tool goes from active when connected to inactive when disconnected, the switch contacts may be stuck.
^ If the fault is not current the problem may be intermittent. Refer to Testing for Intermittent and Poor Connections in Diagnostic Aids.
TEST
