Intermittent fault

The control module has previously detected a fault in the leak diagnostic unit but the fault is not active at present.

Check the leak diagnostic unit connectors. Check for contact resistance and oxidation.

Check the hose and the filter for the air intake on the leak diagnostic unit. Check for blockages.

Remedy as necessary.

Other information:

For resistance values, see Component specifications
To connect the breakout box, see Connecting the breakout box
To access or replace the leak diagnostic unit, see Leak diagnostic pump, replacing
For information about signals on 5 cylinder engines, see Signal specification or Signal specification
See Contents .