GMC G Service Manual page 1239

. Heater Control Lamp Bulb
1
2
Heater Connector
.
Instrument Panel Cluster Connector
3.
4. Instrument Panel Ground Connector
Ground Connector
5.
6 Ground Circuit Wire
.
7. Main Lamp Switch Connector
8.
Engine Function Diagnosis Connector
9. Door Jamb & Dome Lamp Connector
10
Parking Brake Switch Connector
.
Dash Panel Connector
11
.
Horn Relay
12
.
13. Dome Lamp And Door Jamb Harness Connector
14.
Convenience Center
15. Radio Connector
16. Cigarette Lighter Connector
17. Courtesy Lamp
Figure 15 — R/V Instrument Panel Harness
CAB ELECTRICAL 8A-11
F-00728