9-3 (9400) FaultTrace Mode

Checking the sensor's grounding

Take a voltage reading.

1 Pressure sensor, EVAP

2 Pressure sensor, EVAP

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

The reading should be -4.9V - -5.1V

Is the function correct?