Engine Electrical Component Views

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Left Front Corner Of Engine Compartment

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Junction Block - Underhood
2	Battery - Left

Fig 2: View Of Right Side Of Engine Compartment

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Auxiliary Battery Relay w/TP2
2	A/C Accumulator
3	A/C Low Pressure Switch
4	Inner Wheel Well
5	Coolant Level Switch Connector 6.6L and 8.1L
6	Mass Air Flow (MAF) Sensor
7	Air Cleaner Assembly
8	Engine Coolant Recovery Reservoir
9	Auxiliary Battery Relay Electrical Connector w/TP2

Fig 3: View Of Starter - Gas Except HP2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Starter Solenoid
2	Starter

Fig 4: View Of Starter - Diesel

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Injector 7
2	Glow Plug 7
3	Fuel Injector 5
4	Glow Plug 5
5	Fuel Injector 3
6	Glow Plug 3
7	Fuel Injector 1
8	Glow Plug 1
9	Camshaft Position (CMP) Sensor
10	Crankshaft Position (CKP) Sensor
11	Starter
12	Starter Solenoid

Fig 5: View Of Generator - 4.3L

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Air Cleaner Assembly
2	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Assembly
3	Air Inlet Tube
4	Generator

Fig 6: View Of Generator - Gas Except 4.3L or HP2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Generator
2	Battery Cable Junction Block
3	Battery Cable Bracket

Fig 7: View Of Generators - Diesel

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Generator - Primary
2	Engine - 6.6L
3	Generator - Auxiliary - K65 or 8X5

Fig 8: View Of Energy Storage Box (HP2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Energy Storage Control Module (ESCM)
2	400A Fuse Holder
3	Energy Storage Box (ESB) Cooling Fan
4	Battery Cut Off
5	Voltage Sensor - 1
6	Temperature Sensor - Battery 1
7	C340
8	Battery 1
9	Voltage Sensor - 2
10	Temperature Sensor - Battery 2
11	Battery 2
12	Current Sensor
13	Auxiliary Power Outlet
14	Voltage Sensor - 3
15	Temperature Sensor - Battery 3
16	Battery 3
17	Voltage Sensor - 4
18	Auxiliary Power Outlet Connector
19	C341
20	Service Disconnect Switch
21	G311
22	G310

Fig 9: View Of Battery Cable, 3 - Phase Cable, and Power Steering Pump Harnesses (HP2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	3-Phase Cable
2	Power Steering Pump Harness
3	Auxiliary Battery Cable Jumpstart Lead
4	Dash Panel
5	Auxiliary Battery Cable Terminal to Fuse Block - Underhood
6	Battery Cable Terminal to Fuse Block - Underhood
7	Positive Battery Cable
8	Negative Battery Terminal
9	Power Steering Pump Connector C2
10	G100
11	G105
12	Starter/Generator Rotor
13	Starter/Generator Stator
14	Battery Cable Harness
15	C121
16	C122
17	Starter/Generator Control Module

Fig 10: View Of Left Front of Engine Compartment

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Hybrid Control Module (HCM)