EI5 Checking Wiring Harness (Circuit 430D to Ground)

^ Disconnect firm shock relay from vehicle wiring harness.

^ Using an analog ohmmeter, connect one lead to soft shock relay vehicle wiring harness connect Circuit 430D and other to a known good chassis ground.

^ Is ohmmeter reading less than 2 ohms?

YES -- Go to EI8.

NO -- Go to EI6.