Seats
DTC 031
Circuit Description
The mobility seat module uses inputs from 4 limit switches in order to determine the seat position. The limit switch signal circuits are referenced from battery voltage within the module. The limit switches will open or close the switch signal circuits to ground in order for the module to determine them to be active or inactive. The swivel in limit switch signal circuit is considered to be active when the circuit reference voltage is high or open to ground by the switch.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC 031 Swivel In Limit Switch Active at Start of Rotation In
Conditions for Running the DTC
* Battery voltage must be within 9-16 volts.
* Seat rotation in operation is attempted from the outward facing position.
Conditions for Setting the DTC
When the seat is operated to the inward facing position from the outward facing position the swivel in limit switch signal to the module is high or active.
Action Taken When the DTC Sets
While the fault is current the module will allow the seat to be rotated to the forward facing position and not allow outward rotation.
Conditions for Clearing the DTC
The DTC may be cleared by removing the main power supply or ground from the seat module.
Diagnostic Aids
Inspect the limit switch for any physical damage or obstructions to its mechanical operation which may cause the condition.
Test
