Bad Acura Pressure Switch

This bulletin applies to 2013 Acura RDX vehicles. The MIL may be on, with one or both of the following DTCs:

• P3400 (VPS stuck off Bank 1)
• P3497 (VPS stuck off Bank 2)

The symptom may be intermittent and you may not be able to duplicate it after clearing the DTC(s). The possible cause is that the front and/or rear rocker arm oil pressure switch may fail intermittently.

Replace the affected rocker arm oil pressure switch(es). The same rocker arm oil pressure switch is used for front or rear locations.

Rocker arm oil pressure switch: P/N 37240-R70-A04

O-ring (13 mm x 1.5 mm): P/N 91319-PAA-A01

Torque the new pressure switch to 16 ft.-lbs.