GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Express 🢒 Engine 🢒 Engine Electrical 🢒 Engine Electrical Component Views
Figure 1:

G300
Object Number: 323363 Size: MF
(1)G300
Figure 2:

Electronic Brake Control Module
Object Number: 173447 Size: MF
(1)Electronic Brake Control Module (EBCM)
(2)Ignition Feed (C1)
(3)Wheel Sensor (C2)
(4)Brake Pressure Differential Switch
(5)Battery (C3)
Figure 3:

Battery Wiring (Diesel)
Object Number: 323361 Size: MF
(1)G110
Figure 4:

Generator Wiring
Object Number: 375571 Size: MF
(1)C 115
(2)Generator, 100 Amp
(3)Generator, 124 Amp
Figure 5:

G101 (6.5L)
Object Number: 323398 Size: MF
(1)G101
Figure 6:

Glow Plug Relay
Object Number: 375596 Size: MF
(1)C108
Figure 7:

IP Fuse Block
Object Number: 323407 Size: MF
(1)IP Fuse Block
Figure 8:

Steering Column View
Object Number: 312044 Size: MF
(1)Steering Wheel Mounting Shaft
(2)Ignition Switch
(3)Passlock Sensor
(4)AT Shift Lock Solenoid
(5)Steering Column
(6)Windshield Washer/Wiper Switch
(7)Turn Signal Switch
Figure 9:

Instrument Cluster
Object Number: 327367 Size: MF
(1)Hazard Warning Indicator Lamp (LH/RH Turn Signal Indicators)
(2)Fuel Gauge
(3)Headlamp High Beam Indicator Lamp
(4)Low Engine Coolant Level Indicator Lamp (Diesel Only)
(5)ABS Malfunction Indicator Lamp
(6)Check Gauges Indicator Lamp
(7)Service Engine Soon Indicator Lamp
(8)Service Throttle Soon Indicator Lamp
(9)Voltmeter
(10)TRIP Meter Reset
(11)Speedometer
(12)Odometer
(13)PRDNL
(14)Temperature Gauge
(15)WAIT TO START Indicator Lamp
(16)WATER IN FUEL Indicator Lamp
(17)Generator Charge Indicator Lamp
(18)Seat Belt Indicator Lamp
(19)Inflatable Restraint Indicator Lamp
(20)Brake Indicator Lamp
(21)Daytime Running Lamp Indicator Lamp
(22)Oil Pressure Gauge
Figure 10:

Automatic Transmission, 4-Speed, 4L60-E
Object Number: 375600 Size: MF
(1)C 103
(2)Vehicle Speed Sensor (VSS)
(3)Park/Neutral Position Switch
Figure 11:

Automatic Transmission, 4-Speed, 4L80-E
Object Number: 327364 Size: MF
(1)Vehicle Speed Sensor (VSS)
(2)Park/Neutral Position Switch
(3)Backup Lamp Switch (Part of Park/Neutral Position Switch)
(4)Automatic Transmission Input Shaft Speed (A/T ISS) Sensor
Figure 12:

5.0L, 5.7L Engine, RH Side
Object Number: 375577 Size: MF
(1)Crankshaft Position (CKP) Sensor
(2)Starter Motor
(3)Starter Solenoid
Figure 13:

Bulkhead Connector Harness View
Object Number: 323404 Size: MF
(1)C100
(2)P100
Figure 14:

4.3L Engine Harness, Right Side
Object Number: 323373 Size: MF
(1)C110
(2)G103
Figure 15:

Bulkhead Connector Components
Object Number: 323402 Size: MF
(1)Underhood Fuse Relay Center
(2)Vehicle Control Module (VCM)
Figure 16:

Steering Column Wiring
Object Number: 375631 Size: MF
(1)Steering Column Harness
(2)C200
(3)C218
(4)Steering Column
Figure 17:

Powertrain Control Module (PCM)
Object Number: 209401 Size: LF
(1)Engine/Passenger Compartment Divider (Cowl)
(2)HVAC Assembly
(3)Engine Wiring Harness
(4)Powertrain Control Module (PCM)
(5)I/P Harness
Figure 18:

Battery Wiring (Gasoline)
Object Number: 323360 Size: MF
(1)G100
Figure 19:

4.3L Engine Harness, Right Side
Object Number: 323373 Size: MF
(1)C110
(2)G103
Figure 20:

7.4L Engine Harness, Rear
Object Number: 323396 Size: MF
(1)C110
(2)C112
(3)G103
Figure 21:

6.5L Engine Harness, Left Side
Object Number: 323400 Size: MF
(1)C118
(2)C117
(3)C101
(4)C107
(5)C106
(6)G102
(7)G103