Test Description

NOTE: Test numbers refer to numbers on diagnostic chart.

Determines if code is hard or intermittent.
Code 52 will set when open occurs in sensor, wire or connection. This determines if PCM and wiring are okay.
Determines if engine oil temperature signal or sensor ground circuit is open.

Fig 1: Code 52 Schematic (Corvette) Low Engine Oil Temperature

Fig 2: Code 52 Diagnostic Flow Chart (Corvette) Low Engine Oil Temperature