Home ReviewsRefund
Home/Chevrolet/Silverado Classic 1500 HD/Chevrolet Silverado Classic 1500 HD (2007-2007)/Repair manual/Charging System/Hybrid Cooling System: Specifications
Contents Wiring diagrams Section: Charging System All sections

Hybrid Cooling System: Specifications Chevrolet Silverado Classic 1500 HD

Charging System 9 illustrations ~136 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Air Cleaner Outlet Duct Clamp4 N.m35 lb in
Air Conditioning (A/C) Compressor Bolt (6.6L)50 N.m37 lb ft
Air Inlet Tube Nut (6.6L)25 N.m18 lb ft
Auxiliary Water Pump Bracket Nut9 N.m80 lb in
Bypass Pipe to Water Pump Bolt (6.6L)21 N.m16 lb ft
Charged Air Cooler Duct Clamp (6.6L)6 N.m53 lb in
Coolant Air Bleed Pipe Cover Bolt (4.8L, 5.3L, and 6.0L)12 N.m106 lb in
Coolant Air Bleed Pipe Stud/Bolt (4.8L, 5.3L, and 6.0L)12 N.m106 lb in
Coolant Heater (4.8L, 5.3L, and 6.0L)50 N.m37 lb ft
Coolant Heater (8.1L)60 N.m47 lb ft
Coolant Heater Bolt (4.3L)2 N.m18 lb in
Coolant Heater Bolt (6.6L)2 N.m18 lb in
Coolant Heater Cord Bolt8 N.m71 lb in
Coolant Outlet Pipe Clip Bolt (6.6L)9 N.m80 lb in
Cooling Fan Motor Bolt10 N.m89 lb in
Engine Block Coolant Drain Plug60 N.m44 lb ft
Engine Cooling Fan Shroud Bolt8 N.m71 lb in
Engine Shield Bolt20 N.m15 lb ft
Exhaust Gas Recirculation (EGR) Coolant Pipe Bolt (6.6L)21 N.m16 lb ft
Exhaust Manifold Pipe Nut (4.8L, 5.3L, and 6.0L)50 N.m37 lb ft
Fan Clutch Bolt23 N.m17 lb ft
Fan Clutch Nut56 N.m41 lb ft
Fan Pulley Bolt/Nut (6.6L)46 N.m34 lb ft
Fan Shroud Bolt9 N.m80 lb in
Fuel Line Bracket Bolt (6.6L)21 N.m15 lb ft
Fuel Line to Fuel Injection Control Module Bolt (6.6L)35 N.m26 lb ft
Generator Bracket Bolt (6.6L and 8.1L)50 N.m37 lb ft
Generator Bracket Stud (8.1L)20 N.m15 lb ft
Generator Control Module (GCM) Brace Bolts25 N.m18 lb ft
Generator Control Module (GCM) Coolant Pump Bolts9 N.m80 lb in
Generator Control Module (GCM) Coolant Tank Bolts20 N.m15 lb ft
Generator Control Module (GCM) Coolant Tank Nuts9 N.m80 lb in
Generator Control Module (GCM) Cooling Fan Bolt9 N.m80 lb in
Generator Control Module (GCM) Radiator Bolt9 N.m80 lb in
Generator Positive Cable Nut (6.6L)9 N.m80 lb in
Heater Inlet Pipe to Fuel Filter Bolt (6.6L)21 N.m16 lb ft
Heater Inlet Pipe to Thermostat Bolt (6.6L)21 N.m16 lb ft
Heater Outlet Hose Bracket Bolt (6.6L)21 N.m16 lb ft
Hood Hinge Bolts25 N.m18 lb ft
Idler Pulley Bolt (6.6L)43 N.m32 lb ft
Intake Manifold Cover Clamp (6.6L)6 N.m53 lb in
Junction Block Bracket Bolt (6.6L)9 N.m80 lb in
Main Electrical Harness Bracket Bolt (6.6L)21 N.m15 lb ft
Main Engine Electrical Harness Connector Bolt (6.6L)10 N.m89 lb in
Oil Cooler Hose Adapter Bolt (6.0L)12 N.m106 lb in
Oil Cooler Hose Bracket Bolt (6.0L)25 N.m18 lb ft
Oil Cooler Hose Bracket Bolt (8.1L)50 N.m37 lb ft
Positive Crankcase Ventilation (PCV) Oil Separator Bracket Nut (6.6L)21 N.m16 lb ft
Power Steering Pump Bracket Bolt (6.6L)46 N.m34 lb ft
Radiator Bolt25 N.m18 lb ft
Starter/Generator Stator Coolant Inlet Pipe Bolt9 N.m80 lb in
Surge Tank Bolt/Nut9 N.m80 lb in
Thermal Bypass Fitting35 N.m26 lb ft
Thermal Bypass Hose Bolt10 N.m89 lb in
Thermostat Housing Bolt (4.8L, 5.3L, and 6.0L)15 N.m11 lb ft
Thermostat Housing Cover Bolt (6.6L)21 N.m16 lb ft
Thermostat Housing Crossover Bolt/Nut (6.6L)21 N.m16 lb ft
Transmission Control Module (TCM) Cover Bolt9 N.m80 lb in
Transmission Control Module (TCM) Electrical Connector Bolt8 N.m71 lb in
Turbocharger Coolant Bypass Valve (6.6L)60 N.m44 lb ft
Turbocharger Coolant Feed Pipe Bracket Bolt (6.6L)21 N.m16 lb ft
Turbocharger Coolant Feed Pipe Nut (6.6L)9 N.m80 lb in
Turbocharger Coolant Inlet Banjo Bolt (6.6L)25 N.m18 lb ft
Turbocharger Coolant Outlet Pipe Bolt/Nut (6.6L)9 N.m80 lb in
Water Crossover Bolt (8.1L)50 N.m37 lb ft
Water Outlet Bolt (8.1L)30 N.m22 lb ft
Water Outlet Stud (4.3L)25 N.m18 lb ft
Water Outlet Tube Bolt (6.6L)21 N.m16 lb ft
Water Pump Bolt (4.3L)45 N.m33 lb ft
Water Pump Bolt (4.8L, 5.3L, and 6.0L)
First Pass15 N.m11 lb ft
Final Pass30 N.m22 lb ft
Water Pump Bolt (6.6L)21 N.m16 lb ft
Water Pump Bolt (8.1L)50 N.m37 lb ft
Water Pump Inlet Pipe Bolt (6.6L)21 N.m16 lb ft
Water Pump Pulley Bolt (4.3L)25 N.m18 lb ft
Water Pump to Oil Cooler Inlet Pipe Nut (6.6L)21 N.m16 lb ft
Wiring Harness Bracket to Thermostat Housing Bolt (6.6L)8 N.m71 lb in

Fastener Tightening Specifications

Scheme 47

Scheme 47: Hybrid Cooling Schematics
Scheme 47: Hybrid Cooling Schematics

Scheme 48

Scheme 48
Scheme 48

Scheme 49

Scheme 49: Hybrid Cooling Component Views
Scheme 49: Hybrid Cooling Component Views
CalloutComponent Name
1Cooling Fan - Right
2Radiator Core Support
3Starter/Generator Control Module Coolant Pump

Scheme 50

Scheme 50
Scheme 50
CalloutComponent Name
1Energy Storage Control Module (ESCM)
2400A Fuse Holder
3Energy Storage Box (ESB) Fan
4Battery Cut Off Switch
5Voltage Sensor - 1
6Temperature Sensor - Battery 1
7C340
8Battery 1
9Voltage Sensor - 2
10Temperature Sensor - Battery 2
11Battery 2
12Current Sensor
13Auxiliary Power Outlet
14Voltage Sensor - 3
15Temperature Sensor - Battery 3
16Battery 3
17Voltage Sensor - 4
18Auxiliary Power Outlet Connector
19C341
20Service Disconnect Switch
21G311
22G310

Scheme 51

Scheme 51: Energy Storage Control Module (ESCM) - C1 (HP2)
Scheme 51: Energy Storage Control Module (ESCM) - C1 (HP2)
Connector Part Information OEM: 967224-C1 Service: See Catalog Description: 30-Way F (BK)
Terminal Part Information Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit

Energy Storage Control Module (ESCM) - C1 (HP2) Connector & Terminal Parts Information

PinWire ColorCircuit No.Function
1WH1-NTC-1Temperature Sensor Signal - 1
2WH1-NTC-2Temperature Sensor Signal - 2
3-7Not Used
8WH2-BCOBCO Control - A
9WH4-BCOBCO Control - B
10WH2-BCOBCO Status
11WH1-BCOGround
12WH2-CSCurrent Sensor Signal - B
13WH3-CSCompensating Coil Voltage
14WH5-BCOBattery Positive Voltage
15WH2-FANLow Reference
16Not Used
17WH2-NTC-2Low Reference
18WH2-NTC-1Low Reference
19WH2-NTC-3Low Reference
20WH1-NTC-3Temperature Sensor Signal - 3
21WH1-R2Voltage Sensor Signal - 2
22Not Used
23WH1-R1Voltage Sensor Signal - 1
24WH1-R4Voltage Sensor Signal - 4
25WH1-R3Voltage Sensor Signal - 3
26Not Used
27WH1-CSCurrent Sensor Signal - A
28WH4-CSLow Reference
29WH4-FAN5-Volt Reference
30WH1-FANFan Speed Signal

Energy Storage Control Module (ESCM) - C1 (HP2) Connector Terminal Identification

Scheme 52

Scheme 52: Energy Storage Control Module (ESCM) - C2 (HP2)
Scheme 52: Energy Storage Control Module (ESCM) - C2 (HP2)
Connector Part Information OEM: 967224-C2 Service: See Catalog Description: 48-Way F (BK)
Terminal Part Information Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit

Energy Storage Control Module (ESCM) - C2 (HP2) Connector & Terminal Parts Information

PinWire ColorCircuit No.Function
1-14Not Used
15WH1-CARHigh Speed GMLAN Serial Data (+)
16-17Not Used
18WH7-CARIgnition 1 Voltage
19-23Not Used
24WHGND-CARGround
25-38Not Used
39WH2-CARHigh Speed GMLAN Serial Data (-)
40-41Not Used
42WH8-CARIgnition 0 Voltage
43-47Not Used
48WH3-CARBattery Positive Voltage

Energy Storage Control Module (ESCM) - C2 (HP2) Connector Terminal Identification

Scheme 53

Scheme 53: Fuse Block - Underhood C7
Scheme 53: Fuse Block - Underhood C7
Connector Part Information OEM: 15393168 Service: 88986443 Description: 2-Way F J-Type (BK)
Terminal Part Information Terminal/Tray: 12110127/19 Core/Insulation Crimp: F/G Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Fuse Block - Underhood C7 Connector & Terminal Parts Information

PinWire ColorCircuit No.Function
ARD342Battery Positive Voltage
RD342Battery Positive Voltage (HP2)
BRD42Battery Positive Voltage

Fuse Block - Underhood C7 Connector Terminal Identification

Scheme 54

Scheme 54: Starter/Generator Control Module (SGCM) - C4 (HP2)
Scheme 54: Starter/Generator Control Module (SGCM) - C4 (HP2)
Connector Part Information OEM: 12129225 Service: See Catalog Description: 24-Way F Micro-Pack 100 Series Sealed (WH)
Terminal Part Information Terminal/Tray: 12084913/5 Core/Insulation Crimp: W/W Release Tool/Test Probe: 12122523/J-35616-6 (BN) Pins: 12 Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit

Starter/Generator Control Module (SGCM) - C4 (HP2) Connector & Terminal Parts Information

PinWire ColorCircuit No.Function
1TN/WH2500High Speed GMLAN Serial Data (+)
2TN/WH2500High Speed GMLAN Serial Data (+)
3-6Not Used
7YE/BK625Starter Enable Relay Control
8PK1020Ignition 0 Voltage
9L-BU/BK647Medium Resolution Engine Speed Signal
10-11Not Used
12WH2368Cooling Fan Clutch Supply Voltage
13TN2501High Speed GMLAN Serial Data (-)
14TN2501High Speed GMLAN Serial Data (-)
15-20Not Used
21WH121Engine Speed Signal
22-23Not Used
24PK2014Coolant Pump Relay Control

Starter/Generator Control Module (SGCM) - C4 (HP2) Connector Terminal Identification

Scheme 55

Scheme 55: Starter/Generator Control Module Coolant Pump (HP2)
Scheme 55: Starter/Generator Control Module Coolant Pump (HP2)
Connector Part Information OEM: 12084126 Service: 89046833 Description: 2-Way F Sealed (BK)

Starter/Generator Control Module Coolant Pump (HP2) Connector & Terminal Parts Information

PinWire ColorCircuit No.Function
1BK550Ground
2TN/WH5543Auxiliary Heater Pump Voltage

Starter/Generator Control Module Coolant Pump (HP2) Connector Terminal Identification

More articles — Hybrid Cooling System