We will be closed on Memorial Day (Monday, May 30, 2022)

The following eight diagrams show the TIPM-7 series fuel pump circuit with and without our TIPM test/bypass cables in place.   Note that a newer bypass mode connection from M37 rather than M7 has been in use since 2019.  The circuits include:

 

Fuel pump relay working properly - vehicle off

Fuel pump relay working properly - vehicle off

 

 

Fuel pump relay working properly - vehicle on

Fuel pump relay working properly - vehicle on

 

 

Fuel pump relay failing - vehicle attempting to start

Fuel pump relay failing - vehicle attempting to start

 

 

Fuel pump relay stuck in on position - vehicle off

Fuel pump relay stuck in on position - vehicle off

 

 

With TIPM cable - Fuel pump relay test with vehicle working properly

With TIPM cable - Fuel pump relay test with vehicle working properly

 

 

With TIPM cable - Fuel pump relay test with vehicle not starting

With TIPM cable - Fuel pump relay test with vehicle not starting

 

 

With TIPM cable - Fuel pump test with vehicle off

With TIPM cable - Fuel pump test with vehicle off

 

 

With TIPM cable - Bypass mode with old faulty relay disconnected

With TIPM cable - Bypass mode with old faulty relay disconnected

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