MechanicDB
Fault Family System: Powertrain (P-Codes) 17 SAE Codes

Transmission Park Position Sensor Circuit

Diagnostic & Technical Explanation
Code P07B2 (Transmission Park Position Sensor/Switch A Circuit/Open) sets when the TCM sees an open, shorted, or implausible signal from a park-position sensor/switch used to confirm the parking pawl has fully engaged, or a mismatch between redundant A/B sensors. Causes are a maladjusted or worn sensor at the parking pawl/shift shaft, a corroded connector, or chafed wiring at the transmission case.

These 17 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 17 times.

Codes in this family (17)

CodeDefinitionRepair coverage
P07B2Transmission Park Position Sensor/Switch A Circuit/Open3 ranked fixes
P07B3Transmission Park Position Sensor/Switch A Circuit Low3 ranked fixes
P07B4Transmission Park Position Sensor/Switch A Circuit High3 ranked fixes
P07B5Transmission Park Position Sensor/Switch A Circuit Performance/Low3 ranked fixes
P07B6Transmission Park Position Sensor/Switch A Circuit Performance High3 ranked fixes
P07B7Transmission Park Position Sensor/Switch A Circuit Intermittent/Erratic3 ranked fixes
P07B8Transmission Park Position Sensor/Switch B Circuit/Open3 ranked fixes
P07B9Transmission Park Position Sensor/Switch B Circuit Low3 ranked fixes
P07BATransmission Park Position Sensor/Switch B Circuit High3 ranked fixes
P07BBTransmission Park Position Sensor/Switch B Circuit Performance/Low3 ranked fixes
P07BCTransmission Park Position Sensor/Switch B Circuit Performance High3 ranked fixes
P07BDTransmission Park Position Sensor/Switch B Circuit Intermittent/Erratic3 ranked fixes
P07BETransmission Park Position Sensor/Switch A/B Correlation3 ranked fixes
P271APark Pawl Position Sensor A Circuit Low3 ranked fixes
P271BPark Pawl Position Sensor A Circuit High3 ranked fixes
P271CPark Pawl Position Sensor B Circuit Low3 ranked fixes
P271DPark Pawl Position Sensor B Circuit High3 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here: