GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Blazer - 4WD - RHD 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 Engine Controls Schematics
Figure 1:

Cell 20: PWR, GND, MIL, VCM, and Generator
Object Number: 371921 Size: FS
Figure 2:

Cell 20: Data Link Connector (DLC)
Object Number: 371925 Size: FS
Figure 3:

Cell 20: Ignition Controls
Object Number: 371927 Size: FS
Figure 4:

Cell 20: Fuel Level Sensor
Object Number: 371936 Size: FS
Figure 5:

Cell 20: Fuel Injection Controls
Object Number: 371939 Size: FS
Figure 6:

Cell 20: Engine Sensors
Object Number: 371940 Size: FS
Figure 7:

Cell 20: Heated Oxygen Sensors
Object Number: 371945 Size: FS
Figure 8:

Cell 20: MAF and IAC Controls
Object Number: 371944 Size: FS
Figure 9:

Cell 20: Vehicle Speed Outputs and Overhead Console Link
Object Number: 371951 Size: FS
Figure 10:

Cell 20: EGR Valve and EVAP Valves
Object Number: 371942 Size: FS
Figure 11:

Cell 20: 4WD Inputs
Object Number: 371949 Size: FS
Figure 12:

Cell 20: Automatic Transmission Valve Controls
Object Number: 371952 Size: FS
Figure 13:

Cell 20: Automatic Transmission Switch Inputs
Object Number: 371953 Size: FS
Figure 14:

Cell 20: A/C Compressor Controls
Object Number: 371954 Size: FS