That ain't all.

Change el.pdf to ec.pdf and you get the engine control system.

ma = maintenance
lc = lubrication and cooling
fe = accelerator, fuel and exhaust
cl = clutch
mt = manual transmission
at = automatic transmission
tf = transfer
pd = differentials
ax = axles
su = suspension
br = brakes
st = steering
rs = restraint system
bt = body & trim
ha = heating / AC
sc = starting / charging
el = electrical

Of course, I'm not telling anyone what to do with this information.

Thanks, RK