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Code 32 - EGR System Malfunction: Notes

NOTE: Test numbers refer to test numbers on diagnostic chart.
  1. Code 32 will set under the following conditions:
    • Engine at normal operating temperature.
    • Difference of EGR gas temperature between EGR "off" and EGR "on", is less than 37°F (3°C).
    • Signal voltage indicates a EGR gas temperature greater than 35°F (0°C) or less than -36°F (-33°C).
  2. This test determines if EGR gas temperature sensor or EGR valve is at fault, or if ECM and wiring are at fault.