Diagnostic Aids

WARNING: This page is about a different variant/trim than selected.

Depending on location in the spliced ignition voltage circuit, a slight resistance can cause a misfire or a crank/no start condition. A voltage drop test on the circuit will pinpoint this condition.
A slight to moderate resistance on any IC circuit can cause a misfire before DTC P0351-P0358 sets.
Extended engine cranking time may fuel the spark plugs with excessive fuel.
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 J 35616 for any test that requires probing the underhood fuse block terminals, component wire harness terminals, or the ECM wire harness terminals.