B2376

DTC B2376

CIRCUIT DESCRIPTION
Three of the seat adjuster motors are equipped with position sensors (transducers). They are the horizontal motor, front vertical motor and the rear vertical motor. The position sensors (transducers) are supplied with a 5-volt reference circuit and ground circuit from the memory seat module (MSM). The MSM receives a transducer input voltage from each position sensor (transducer) whenever a MSM output function is active.

DTC DESCRIPTORs
This diagnostic procedure supports the following DTCs:
- DTC B2356 Seat Front Vertical Position Sensor Circuit Range/Performance
- DTC B2366 Rear Vertical Position Sensor Circuit Range/Performance
- DTC B2376 Seat Horizontal Position Sensor Circuit Range/Performance

CONDITIONS FOR RUNNING THE DTC
The MSM detects a switch signal active or a memory function request.

CONDITIONS FOR SETTING THE DTC
The MSM detects the transducer input circuit under 0.75 volts or over 4.78 volts.

ACTION TAKEN WHEN THE DTC SETS
Memory functions for the motor that the DTC set for will be disabled as long as the fault is current.

CONDITIONS FOR CLEARING THE DTC
- The DTC will be current for as long as the fault is present.
- When the fault is no longer present the DTC will be a history status code.
- The history DTC will be cleared after 100 error free ignition cycles, or by using the scan tool clearing DTCs feature.

TEST DESCRIPTION

Steps 1 - 11:

Steps 12 - 16:

The numbers below refer to the step numbers on the diagnostic table.
3. Tests for the proper operation of the circuit in the low voltage range.
4. Tests for the proper operation of the circuit in the high voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to ground.
5. Tests for a short to voltage in the 5-volt reference circuit.
6. Tests for a high resistance or an open in the low reference circuit.