Engine Controls Component Views. Chevrolet Tahoe Z71 2000

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2000 🢒 Tahoe Z71 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Engine Controls Component Views

Figure 1:

Underhood Fuse/Relay Center


(1)	AUX B
(2)	AUX A
(3)	AUX B (30 amp)
(4)	Lighting (50 amp)
(5)	AUX A (30 amp)
(6)	Battery (50 amp)
(7)	Spare (10 amp)
(8)	Fuse Puller
(9)	Spare (20 amp)
(10)	Spare (30 amp)
(11)	Ignition A (40 amp)
(12)	ECM B (20 amp)
(13)	Horn (20 amp)
(14)	Air conditioning (10 amp)
(15)	Ignition B (50 amp)
(16)	Rear defog (30 amp)
(17)	Aux fan (30 amp)
(18)	ABS (60 amp)
(19)	Ignition E (20 amp)
(20)	ECM 1 (20 amp)
(21)	Engine 1 (20 amp)
(22)	Blower (50 amp)
(23)	Spare (10 amp)
(24)	Stop/Hazard (30 amp)
(25)	Spare (10 amp)
(26)	Diode 1
(27)	Diode 2
(28)	Horn relay
(29)	Fuel pump relay
(30)	A/C relay
(31)	A.I.R. relay
(32)	Spare
(33)	Brake lamp relay

Figure 2:

Data Link Connector (DLC)


(1)	Data Link Connector (DLC)

Figure 3:

VCM, EBCM and Underhood fuse/relay center


(1)	Underhood fuse/relay center
(2)	Vehicle Control Module (VCM)
(3)	Electronic Brake Control Module (EBCM)

Figure 4:

Vehicle Speed Sensor (4WD)


(1)	Vehicle Speed Sensor (VSS)
(2)	Transfer case

Figure 5:

Vehicle Speed Sensor (2WD)


(1)	Vehicle Speed Sensor (VSS)

Figure 6:

Vehicle Speed Sensor (4L80E)


(1)	Vehicle Speed Sensor (VSS)

Figure 7:

Heated Oxygen Sensors (HO2S) 5.7L Heavy Duty


(1)	HO2S Bank 2 Sensor 2
(2)	HO2S Bank 1 Sensor 2
(3)	HO2S Bank 1 Sensor 1
(4)	HO2S Bank 2 Sensor 1

Figure 8:

HO2S 5.7L Light Duty


(1)	HO2S Bank 2 Sensor 2
(2)	HO2S Bank 1 Sensor 1
(3)	HO2S Bank 2 Sensor 1
(4)	HO2S Bank 1 Sensor 2

Figure 9:

Heated Oxygen Sensors 5.0L


(1)	HO2S Bank 1 Sensor 3
(2)	HO2S Bank 1 Sensor 1
(3)	HO2S Bank 2 Sensor 1

Figure 10:

Fuel Filter


(1)	Fuel Filter

Figure 11:

Auxliary Fuel Tank (Dual Tank)


(1)	Tail Lamp, LH
(2)	Rear Lamp Extension Harness
(3)	Balance Pump
(4)	Fuel Sender
(5)	Fuel Sender connector
(6)	Fuel Tank, Rear

Figure 12:

Fuel Tank Pressure Sensor and Fuel Tank Sender Assembly (Utility side tank)


(1)	Fuel Tank Pressure Sensor
(2)	Fuel Tank Sender Assembly

Figure 13:

Fuel Tank Pressure Sensor and Fuel Tank Sender Assembly (Pick-up side tank)


(1)	Fuel Tank Pressure Sensor

Figure 14:

Fuel Tank Pressure Sensor and Fuel Tank Sender Assembly (rear tank)


(1)	Fuel Tank Sender Assembly
(2)	Fuel Tank Pressure Sensor

Figure 15:

Purge Solenoid, Ignition Coil, Oil Pressure Switch and CMP


(1)	EVAP Canister Purge Solenoid
(2)	Ignition Coil Module
(3)	Ignition Coil
(4)	Oil Pressure Switch
(5)	Camshaft Position (CMP) Sensor

Figure 16:

Knock Sensor and CKP


(1)	Knock Sensor (KS)
(2)	Crankshaft Position (CKP) Sensor

Figure 17:

TP, IAC and PCV


(1)	Idle Air Control (IAC) Valve
(2)	Positive Crankcase Ventilation (PCV) Valve
(3)	Throttle Position (TP) Sensor

Figure 18:

MAP, EGR, Purge Solenoid, and Throttle Body


(1)	Throttle Body
(2)	Exhaust Gas Recirculation (EGR) Valve
(3)	Generator
(4)	Evaporative Emission (EVAP) Canister Purge Valve
(5)	Manifold Absolute Pressure (MAP) Sensor

Figure 19:

ECT and EGR


(1)	Exhaust Gas Recirculation (EGR) Valve
(2)	Engine Coolant Temperature (ECT) Sensor

Figure 20:

MAF, IAT, Air Cleaner Assembly


(1)	Air Cleaner Assembly
(2)	Intake Air Temperature (IAT)
(3)	Mass Air Flow (MAF) Sensor
(4)	Air Cleaner Restriction Indicator

Figure 21:

Enhanced EVAP and PCV


(1)	Positive Crankcase Ventilation (PCV) Valve
(2)	EVAP Service Port
(3)	EVAP Canister
(4)	EVAP Canister Purge Solenoid

Figure 22:

AIR and EVAP


(1)	Electric AIR Pump
(2)	AIR Valve
(3)	Evaporative Emission (EVAP) Canister
(4)	EVAP Canister Vent Valve