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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls - Powertrain DTC Charts & Descriptions - (Hybrid)) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> DTC P2803: Transmission Range Sensor B Circuit High

DTC P2803: Transmission Range Sensor B Circuit High

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P2803: TRANSMISSION RANGE SENSOR B CIRCUIT HIGH

Description:  The powertrain control module (PCM) checks the gear selector position by monitoring two independent voltage signals from the transmission range (TR) sensor. The TR voltages are then compared to an allowed voltage range for each gear. The test fails when the compared voltages are out of range. This DTC indicates that one TR signal is high.
Possible Causes: 
  • TR circuit shorted to voltage or VREF
  • Damaged TR sensor
Diagnostic Aids:  See the diagnostic aids for DTC P2800.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST TA .