DTC 052
DTC 052
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 lift lower limit switch signal circuit is considered to be active when the circuit reference voltage is low or closed to ground by the switch.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC 052 Lift Lower Limit Switch Remains Active After Start of Ascend
Conditions for Running the DTC
* Battery voltage must be within 9-16 volts.
* Seat ascend operation is attempted from the out of vehicle position.
Conditions for Setting the DTC
After seat ascend operation has been in progress for 1 second from the out of vehicle position the lift lower limit switch signal to the module remains low or active.
Action Taken When the DTC Sets
While the fault is current the module will allow the seat to be ascended to the in vehicle outward facing position and not allow the seat to descend to the out of vehicle position.
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
