B1825

CIRCUIT DESCRIPTION
The Seat Position Sensor is mounted to the seat motor it monitors. The Seat Position Sensor is a potentiometer that utilizes a 5 volt reference source, a sensor low reference (ground) and a motor position signal return circuit. The seat module monitors the motor position signal return circuit for changes in voltage that indicate changes in seat position. During normal operation, the seat module checks the input from the sensor for out of range voltage limits. During Memory Set, the seat module records the voltage input from the signal return circuit. During Memory Recall, the seat module moves the seat until the voltage input matches that of stored voltage from Memory Set.

CONDITIONS FOR RUNNING THE DTC
The seat module must be powered with 9-16 volts.

CONDITIONS FOR SETTING THE DTC
The seat module detects that the position sensor is above 4.5 volts or below 0.5 volts.

ACTION TAKEN WHEN THE DTC SETS
The seat module will disable Memory Seat recall and the Easy Exit function only on the seat that is monitored.

CONDITIONS FOR CLEARING THE DTC
^ The DTC will clear when the DSM no longer detects a fault.
^ A history DTC will be cleared after completing 100 consecutive ignition cycles.

DIAGNOSTIC AIDS
If the DTC is only found in history, the fault may be intermittent. Refer to Testing for Intermittent and Poor Connections in Diagnostic Aids.

TEST

DTC B1825, B1850, B1860, B2355, B2365, Or B2375 - Steps 1-5:

DTC B1825, B1850, B1860, B2355, B2365, Or B2375 - Steps 6-16: