FUEL INJECTION (FUEL SYSTEMS)(H4DOTC DIESEL) > Sub Fuel Pump
1. Check the fuel hoses and sub fuel pump for deformation, cracks and damage.
2. Check that there is no fuel leakage from hoses and connecting parts.
3. Connect terminal No. 2 to the battery positive terminal and terminal No. 1 to the battery ground terminal, and check sub fuel pump operation.
CAUTION:
Do not operate for a long period of time when no fuel is passing through the system.