Hummer H1 Service Manual page 809

12-38 Electrical System
Step
10 Repair open or bad connection in CKT32
between neutral saftey switch and start relay.
Is condition repaired
11 Remove lower cover of steering column to access
the ignition switch connector. Back probe the
white wire (CKT33) with the positive lead of a
DVOM set to measure voltage. Place the ground
lead on a known good ground. Turn the ignition
switch to crank. Is voltage present?
12 Using a DVOM set to measure voltage, place the
negative lead on known good ground and back-
probe the yellow wires (CKT37) at the ignition
switch connectors. Is voltage present?
4-1-00
_______________________________________________________
Starter Inoperative (Continued)
Action Value(s) Yes
Repair complete
12v Repair open or
short to ground in
CKT33 between
Ignition switch and
the neutral saftey
switch.
12v/12v Replace ignition
switch.
®
No
Go to step 1.
Go to step 12
Repair open or
short to ground in
CKT37 between
maxi fuse and Igni-
tion switch.