Hummer H1 Service Manual page 847

12-74.2 Electrical System
POWERTRAIN
CONTROL
MODULE
( PCM )
GROUND
GROUND
40 PULSE
OUTPUT SHAFT
REVOLUTION
SIGNAL
TO PCM
4000 PPM
CRUISE
CONTROL
REFERENCE
SIGNAL
REFERENCE
3-1-01
_____________________________________________________
VEHICLE
SPEED
SENSOR
(VSS)
G2
C29
570 BK
A6
570 BK
A7
C28
565 BR
D6
D9
4 7
CRUISE VEHICLE GROUND
CONTROL SPEED
SENSOR
SIGNAL RETURN
4000 PPM
Figure 12-93.2 Digital Ratio Adapter Wiring Diagram
B A
TWISTED
PAIR
C33
B A
8 9 12
+12 VOLT VEHICLE
IGNITION SPEED
SIGNAL
DIGITAL RATIO ADAPTER
TO TO
IGNITION SPEEDO
FUSE
1D
15 AMP
EXTERIOR
FUSE
BOX
C3-P9
C1-18
13 10
OUTPUT SHAFT SPEEDO
REVOLUTION REFERENCE
SIGNAL SIGNAL
00-S12-038
®