GMC Repair: 1998 blazer code 1351 idm, high voltage, blazer

Question
i recently bought this car and the service engine light came on. i checked it with my code reader and a code 1351 came up. my book says it idm - ignition coil circuit high voltage.  what do i look for in fixing this? its a 4.3 liter vortec engine. 4 wheel drive. thanks for your help  ..

Answer
Hi
There is a pretty long test to diagnose this code.
Only 2 PARTS could be fault either the Ignition Control Module and or the VCM (Vehicle Control Module).
I will say, though it looks like the wiring from the VCM to the ICM could also be faulty.
It really should be professionally diagnosed as it looks like parts could add up.
I hope this helps.
Good luck
Pawl