Diagnostic Aids

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This test procedure requires that the vehicle battery has passed a load test and is completely charged.
There is an adequate supply of fuel in the fuel tank.
When disconnecting electrical connectors or removing fuses and relays from a fuse block, always inspect both mating electrical terminals for corrosion and terminal tightness.
Use the EL 35616-E Terminal Test Kit for any test that requires probing the underhood fuse block terminals, component wire harness terminals, or the ECM wire harness terminals.
A slight to moderate resistance in the ignition voltage circuit can cause a misfire condition or a crank/no start concern.
Extended engine cranking time, will foul the spark plugs with excessive fuel and cause a crank/no start condition.