Hummer H1 Service Manual page 937

12-160 Electrical System
PIN CKT COLOR
11 787
12 37
13 688
14 723
15 724
16 17
17 718
18 353
19 607
20 717
21 961
22 720
23 640
24 92
25 714
26 37
27 338
28 658
29 151
30 31
31 22
32 721
33 580
34 606
35 29
36 39
37 153
38 42
39 198
40 810
41 2
42 152
43 298
44 722
45 327
46 80
4-1-00
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GY Fuel pump + to selector valve
RD Ignition relay feed
RD Rear window defrost feed
YL APP 3 5volt reference
DG APP 3 signal
PP + FROM DIMMER MODULE
DB APP 1 signal
YL Speedometer signal
TN ABS module diagnostic line
WH APP 1 5volt reference
PP TT4 lamp activation
TN APP 2 5volt reference
OR IGN+ CTIS warning circuits
GY CTIS rear inflate solenoid activation
DB Check throttle lamp activation
RD Battery feed to interior accessories
DB Wait lamp activation
BR Check engine lamp activation
GY Cruise control ON/OFF signal
TN Oil pressure signal
RD Brake switch signal – rest
LB APP 2 sensor signal
BR Not Used for 99 and 2000
OR ABS diagnostic line
PK Fuel gauge signal
DG Engine temperature signal
LG Cruise resume/accelerate signal
BR Low brake fluid lamp activation
TN A/C request
PP TCC brake switch signal
LG Right front turn signal
DB Cruise set/coast signal
BR Backup light switch feed
PP APP 2 ground
YL Water-in-fuel lamp activation
WH Underhood lamp power
CIRCUIT DESCRIPTION
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