3-Pc. Set Covers Common Fuel Pump Relay Applications.

The Relay Bypass Switch plugs in place of the fuel pump relay and provides direct control over the fuel pump circuit. It can be used to actuate the fuel pump when the engine is not running, allowing the fuel pressure to be read.

Features and Benefits:

• Allows easy testing of fuel injection pressure by energizing the fuel pump while the engine is off
• Relay Bypass allows a technician to control the fuel pump independent of “key on” systems
• Operating range: 20 amp continuous, 30 amp surge (12V)
• Plugs in place of relay

Includes:
• Large Rectangular Relay – GM, Chrysler, and Japanese 1995-2007 (#9037-3) • Square Relay – BMW 1995-2006 (#9037-2) • Small Rectangular Relay – GM, Chrysler, and Japanese 1985-2009 (#9037-1)