Engine Management

Scan Tool 18 (MIL 31):

Trouble Code Number
- Scan tool 18
- General Scan Tool P0443
- MIL 31

Fault Message
- EVAP Solenoid Circuit

Background
- it is operated as a PCM output providing a switched ground path once the vehicle enters closed loop operation.
- This DTC indicates a short or open-circuit condition in the circuit.

Range of Check
- Battery voltage: 10 V or more
- Ignition switch: ON

Set Condition
- Open or short circuit is detected in the EVAP purge control solenoid control circuit for 3 seconds.

Probable Cause
- Open or short control circuit
- Open fused ignition switch output circuit
- Open or shorted solenoid coil
- PCM failed