Ignition relay

[twinturbo]

Black and Yellow should not be grounded.

RED feed the ignition switch from the battery fused link.

Black + yellow ( position 2 - engine run) Feeds some fuses and the ingnition relay. This is designated circuit 15-x ( x being sub-circuit numbers )

Don't confuse ignition with starting they are two seperate circuits

Starting is circuit 50-x Which is black and Blue from the ignition switch to the inhibit/anti-theft relay and then black and blue to solder joint S-1039 which acording to the data is near the rear WashWipe motor loom where it becomes black and red untill the starter motor.

TT