A change was made to the rear ABS wheel speed sensor harness in 2012 Impreza vehicles. The length of the wiring harness was increased by 15mm, and a bracket was added to the rear upper arm assembly to secure the harness.
MODEL OLD P/N VIN RANGE NEW P/N VIN RANGE
Impreza Sedan C*002001 to C*002179 C*002180 and after
Impreza Wagon C*200001 to C*200160 C*200161 and after
NO. 1….SENSOR ASSEMBLY RIGHT REAR
OLD P/N: 27540FJ100
NEW P/N: 27540FJ020
INTERCHANGEABILITY: New P/N to vehicle within old No. VIN range (necessary to replace No. 1 and 2 at the same time)
NO. 2….ARM ASSEMBLY, RIGHT REAR UPPER
OLD P/N: 20252FJ000
NEW P/N: 20252FJ020
INTERCHANGEABILITY: Cannot interchange old with new P/N
NO. 3…SENSOR ASSEMBLY LEFT REAR
OLD P/N: 27540FJ110
NEW P/N: 27540FJ030
INTERCHANGEABILITY: New P/N to vehicle within old part number VIN range (necessary to replace No. 3 and No. 4 at the same time)
NO. 4…ARM ASSEMBLY, LEFT REAR UPPER
OLD P/N: 20252FJ010
NEW P/N: 20252FJ030
INTERCHANGEABILITY: Cannot interchange old part number to vehicle within new part number VIN range.
NOTE: The old style sensors have a white mark next to the part number stamping.
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