ENGINE PERFORMANCE – Chevrolet Tahoe 2001 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.8L

4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (1 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (1 of 5) for Chevrolet Tahoe 2001:

• (below steering column) data link connector
• (lower right rear of engine) crankshaft position sensor
• +5v
• 3-2 ss
• Anti-lock brake system
• Body control module (below steering column)
• Brk sw
• C10
• C11
• C12
• Ckp
• Cls 2 data
• Clutch sw
• Cmp
• Coolant lev
• D10
• E12
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Egr input
• Electronic suspension system
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ho2s hi
• Ho2s lo
• Hot at all times
• Hot in run & start
• Ign
• Ign 0 fuse 10a
• Inj1
• Inj2
• Inj3
• Inj4
• Inj5
• Inj6
• Inj7
• Inj8
• Inja fuse 15a
• Injb fuse 15a
• Injectors
• Ks signal
• Lift/dive sig
• O2a fuse 15a
• O2b fuse 15a
• Oil lev
• Pnk
• Pnk b
• Powertrain control module (left front of engine compt)
• Prnd a
• Prnd b
• Prnd p
• Range b
• Range c
• Red
• Ref low
• Req torque
• S103
• Sens gnd
• Sens rtn
• Serial data
• Sp205 (behind headlamp switch)
• Tan
• Underhood junction block

4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (2 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (2 of 5) for Chevrolet Tahoe 2001:

• (left front of engine)
• (left rear of engine)
• (left rear of engine) g114
• (not used)
• Air maxi fuse 30a c7
• Ecm b fuse 20a
• Engine coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (left front of cylinder head)
• Engine oil level switch (right side of oil pan)
• Fuel pump relay
• Fuel pump/ level sensor (in fuel tank)
• G104
• G110
• G114 (left rear of engine)
• G117 (right rear of engine)
• G402 (left frame body mount bracket)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter)
• Hot at all times
• Hot in run & start
• Ign e fuse 10a c2
• Knock sensor 1 (under intake manifold)
• Knock sensor 2 (under intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pnk
• Red
• S103
• S104
• S104 (in engine harness)
• S108
• Secondary air injection reaction pump (right rear of engine compt)
• Secondary air injection reaction relay (right rear of engine compartment)
• Secondary air injection reaction solenoid (right rear of engine compt)
• Tan
• Throttle position sensor (w/o electronic throttle control) (on throttle body assy)
• Under- hood junction block

4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (3 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (3 of 5) for Chevrolet Tahoe 2001:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• Body junction block
• Brake fuse 10a
• Camshaft position sensor (top center rear of engine)
• Clutch pedal position switch (top of pedal bracket)
• Evap canister purge valve (top right rear of engine)
• Evap canister vent valve (left front side of fuel tank)
• Exhaust gas recirculation valve (top right front of engine)
• F12
• Fuel tank pressure sensor (in fuel tank)
• Fuse block
• Hot in run
• Hot in run & start
• Manifold absolute pressure sensor (top rear of engine)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Pnk b
• Red
• Red e
• Red/
• Rev
• Stop lps fuse 20a
• Stop- lamp switch (top of brake pedal bracket)
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)

4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (4 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (4 of 5) for Chevrolet Tahoe 2001:

• A10
• Accelerator pedal position sensor (w/ electronic throttle control)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• Cruise control system
• Cruise req
• D11
• Data
• Ect fuse 15a
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ground
• Hot in run & start
• Hot in run or start
• Iat sensor
• Ign
• Ign0 fuse 10a
• Mass airflow sensor (in air intake duct)
• Pnk
• Pnk d
• R/a input
• Red
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Sens grd
• Signal
• Stp lp in
• Tan
• Tan b
• Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt)
• Throttle actuator control motor (w/ electronic throttle control) (on throttle body)
• Throttle position sensor (dual track) (w/ electronic throttle control) (on throttle body)
• Tp sens 1
• Tp sens 2
• Underhood junction block
• Veh stop fuse 10a

4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (5 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Delphi HO2S (5 of 5) for Chevrolet Tahoe 2001:

• (in engine harness)
• (left front of engine) g110
• (left rear of engine) g114
• 1-2 ss
• 2-3 ss
• 4wd low
• A/c clu
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• Anti-lock brake system (speed signal)
• Automatic transfer case control module (above c3 headlight switch)
• Cruise control system
• Cruise eng
• Ctrl
• Cyc sw in
• Delivered torq
• Egr ctrl
• Egr gnd
• Eng1 fuse 10a
• Evap canp
• Evap vent
• Front axle switch (right side of center on axle housing)
• Frt axle sw
• Fuel lev
• Fuel pmp
• Fuel sig ctrl
• Fuse block
• G117 (right rear of engine)
• Gen f
• Gen l
• Gnd
• Hot in run & start
• Iac coil hi
• Iac coil lo
• Iat sig
• Idle air control valve (top of throttle body)
• Ign
• Ign ctrl
• Ign feed
• Ign1 fuse 10a
• Ignition coils
• Instrument cluster systems (speed signal)
• Instrument panel cluster
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi
• Pc sol lo
• Pnk
• Pnk d
• Powertrain control module (left front of engine compt)
• Prnd c
• Recirc door
• Recirc sw
• Red
• Red c
• Ref lo
• Ref low
• Rpm out
• S103
• S151
• S152
• S153
• S154
• S157
• Sens gnd
• Spark plug
• Starting/charging system
• Tan
• Tcc pwm
• Tcc sol
• Tft sens sig
• Tp sig
• Trans rng a
• Transfer case switch (left front of transaxle case)
• Under- hood junction block
• Vss high
• Vss low
• Vss out
• W/ atc
• W/ manual 4wd

4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (1 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (1 of 5) for Chevrolet Tahoe 2001:

• (below steering column) data link connector
• (lower right rear of engine) crankshaft position sensor
• +5v
• 3-2 ss
• Anti-lock brake system
• Body control module (below steering column)
• Brk sw
• C10
• C11
• C12
• Ckp
• Cls 2 data
• Clutch sw
• Cmp
• Coolant lev
• D10
• E12
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Egr input
• Electronic suspension system
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ho2s hi
• Ho2s lo
• Hot at all times
• Hot in run & start
• Ign
• Ign 0 fuse 10a
• Inj1
• Inj2
• Inj3
• Inj4
• Inj5
• Inj6
• Inj7
• Inj8
• Inja fuse 15a
• Injb fuse 15a
• Injectors
• Ks signal
• Lift/dive sig
• O2a fuse 15a
• O2b fuse 15a
• Oil lev
• Pnk
• Pnk b
• Powertrain control module (left front of engine compt)
• Prnd a
• Prnd b
• Prnd p
• Range b
• Range c
• Red
• Ref low
• Req torque
• S103
• Sens gnd
• Sens rtn
• Serial data
• Sp205 (behind headlamp switch)
• Tan
• Under- hood junction block

4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (2 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (2 of 5) for Chevrolet Tahoe 2001:

• (eng harness) s114
• (left front of engine)
• (left rear of engine)
• (left rear of engine) g114
• (not used)
• Air maxi fuse 30a c7
• Ecm b fuse 20a
• Engine coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (left front of cylinder head)
• Engine oil level switch (right side of oil pan)
• Fuel pump relay
• Fuel pump/ level sensor (in fuel tank)
• G104
• G110
• G114 (left rear of engine)
• G117 (right rear of engine)
• G402 (left frame body mount bracket)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter)
• Hot at all times
• Hot in run & start
• Ign e fuse 10a c2
• Knock sensor 1 (under intake manifold)
• Knock sensor 2 (under intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pnk
• Red
• S103
• S104
• S104 (in engine harness)
• S108
• S113 (eng harness)
• Secondary air injection reaction pump (right rear of engine compt)
• Secondary air injection reaction relay (right rear of engine compartment)
• Secondary air injection reaction solenoid (right rear of engine compt)
• Tan
• Throttle position sensor (w/o electronic throttle control) (on throttle body assy)
• Under- hood junction block

4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (3 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (3 of 5) for Chevrolet Tahoe 2001:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• Body junction block
• Brake fuse 10a
• Camshaft position sensor (top center rear of engine)
• Clutch pedal position switch (top of pedal bracket)
• Evap canister purge valve (top right rear of engine)
• Evap canister vent valve (left front side of fuel tank)
• Exhaust gas recirculation valve (top right front of engine)
• F12
• Fuel tank pressure sensor (in fuel tank)
• Fuse block
• Hot in run
• Hot in run & start
• Manifold absolute pressure sensor (top rear of engine)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Pnk b
• Red
• Red e
• Red/
• Rev
• Stop lps fuse 20a
• Stop- lamp switch (top of brake pedal bracket)
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)

4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (4 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (4 of 5) for Chevrolet Tahoe 2001:

• A10
• Accelerator pedal position sensor (w/ electronic throttle control)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• Cruise control system
• Cruise req
• D11
• Data
• Ect fuse 15a
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ground
• Hot in run & start
• Hot in run or start
• Iat sensor
• Ign
• Ign0 fuse 10a
• Mass airflow sensor (in air intake duct)
• Pnk
• Pnk d
• R/a input
• Red
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Sens grd
• Signal
• Stp lp in
• Tan
• Tan b
• Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt)
• Throttle actuator control motor (w/ electronic throttle control) (on throttle body)
• Throttle position sensor (dual track) (w/ electronic throttle control) (on throttle body)
• Tp sens 1
• Tp sens 2
• Under- hood junction block
• Veh stop fuse 10a

4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (5 of 5) for Chevrolet Tahoe 2001

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Denso HO2S (5 of 5) for Chevrolet Tahoe 2001:

• (in engine harness)
• (left front of engine) g110
• (left rear of engine) g114
• 1-2 ss
• 2-3 ss
• 4wd low
• A/c clu
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• Anti-lock brake system (speed signal)
• Automatic transfer case control module (above c3 headlight switch)
• Cruise control system
• Cruise eng
• Ctrl
• Cyc sw in
• Delivered torq
• Egr ctrl
• Egr gnd
• Eng1 fuse 10a
• Evap canp
• Evap vent
• Front axle switch (right side of center on axle housing)
• Frt axle sw
• Fuel lev
• Fuel pmp
• Fuel sig ctrl
• Fuse block
• G117 (right rear of engine)
• Gen f
• Gen l
• Gnd
• Hot in run & start
• Iac coil hi
• Iac coil lo
• Iat sig
• Idle air control valve (top of throttle body)
• Ign
• Ign ctrl
• Ign feed
• Ign1 fuse 10a
• Ignition coils
• Instrument cluster systems (speed signal)
• Instrument panel cluster
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi
• Pc sol lo
• Pnk
• Pnk d
• Powertrain control module (left front of engine compt)
• Prnd c
• Recirc door
• Recirc sw
• Red
• Red c
• Ref lo
• Ref low
• Rpm out
• S103
• S151
• S152
• S153
• S154
• S157
• Sens gnd
• Spark plug
• Starting/charging system
• Tan
• Tcc pwm
• Tcc sol
• Tft sens sig
• Tp sig
• Trans rng a
• Transfer case switch (left front of transaxle case)
• Under- hood junction block
• Vss high
• Vss low
• Vss out
• W/ atc
• W/ manual 4wd

5.3L

5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (1 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (1 of 5) for Chevrolet Tahoe 2001:

• (below steering column) data link connector
• (lower right rear of engine) crankshaft position sensor
• +5v
• 3-2 ss
• Anti-lock brake system
• Body control module (below steering column)
• Brk sw
• C10
• C11
• C12
• Ckp
• Cls 2 data
• Clutch sw
• Cmp
• Coolant lev
• D10
• E12
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Egr input
• Electronic suspension system
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ho2s hi
• Ho2s lo
• Hot at all times
• Hot in run & start
• Ign
• Ign 0 fuse 10a
• Inj1
• Inj2
• Inj3
• Inj4
• Inj5
• Inj6
• Inj7
• Inj8
• Inja fuse 15a
• Injb fuse 15a
• Injectors
• Ks signal
• Lift/dive sig
• O2a fuse 15a
• O2b fuse 15a
• Oil lev
• Pnk
• Pnk b
• Powertrain control module (left front of engine compt)
• Prnd a
• Prnd b
• Prnd p
• Range b
• Range c
• Red
• Ref low
• Req torque
• S103
• Sens gnd
• Sens rtn
• Serial data
• Sp205 (behind headlamp switch)
• Tan
• Underhood junction block

5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (2 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (2 of 5) for Chevrolet Tahoe 2001:

• (left front of engine)
• (left rear of engine)
• (left rear of engine) g114
• (not used)
• Air maxi fuse 30a c7
• Ecm b fuse 20a
• Engine coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (left front of cylinder head)
• Engine oil level switch (right side of oil pan)
• Fuel pump relay
• Fuel pump/ level sensor (in fuel tank)
• G104
• G110
• G114 (left rear of engine)
• G117 (right rear of engine)
• G402 (left frame body mount bracket)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter)
• Hot at all times
• Hot in run & start
• Ign e fuse 10a c2
• Knock sensor 1 (under intake manifold)
• Knock sensor 2 (under intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pnk
• Red
• S103
• S104
• S104 (in engine harness)
• S108
• Secondary air injection reaction pump (right rear of engine compt)
• Secondary air injection reaction relay (right rear of engine compartment)
• Secondary air injection reaction solenoid (right rear of engine compt)
• Tan
• Throttle position sensor (w/o electronic throttle control) (on throttle body assy)
• Under- hood junction block

5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (3 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (3 of 5) for Chevrolet Tahoe 2001:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• Body junction block
• Brake fuse 10a
• Camshaft position sensor (top center rear of engine)
• Clutch pedal position switch (top of pedal bracket)
• Evap canister purge valve (top right rear of engine)
• Evap canister vent valve (left front side of fuel tank)
• Exhaust gas recirculation valve (top right front of engine)
• F12
• Fuel tank pressure sensor (in fuel tank)
• Fuse block
• Hot in run
• Hot in run & start
• Manifold absolute pressure sensor (top rear of engine)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Pnk b
• Red
• Red e
• Red/
• Rev
• Stop lps fuse 20a
• Stop- lamp switch (top of brake pedal bracket)
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)

5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (4 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (4 of 5) for Chevrolet Tahoe 2001:

• A10
• Accelerator pedal position sensor (w/ electronic throttle control)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• Cruise control system
• Cruise req
• D11
• Data
• Ect fuse 15a
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ground
• Hot in run & start
• Hot in run or start
• Iat sensor
• Ign
• Ign0 fuse 10a
• Mass airflow sensor (in air intake duct)
• Pnk
• Pnk d
• R/a input
• Red
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Sens grd
• Signal
• Stp lp in
• Tan
• Tan b
• Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt)
• Throttle actuator control motor (w/ electronic throttle control) (on throttle body)
• Throttle position sensor (dual track) (w/ electronic throttle control) (on throttle body)
• Tp sens 1
• Tp sens 2
• Underhood junction block
• Veh stop fuse 10a

5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (5 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Delphi HO2S (5 of 5) for Chevrolet Tahoe 2001:

• (in engine harness)
• (left front of engine) g110
• (left rear of engine) g114
• 1-2 ss
• 2-3 ss
• 4wd low
• A/c clu
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• Anti-lock brake system (speed signal)
• Automatic transfer case control module (above c3 headlight switch)
• Cruise control system
• Cruise eng
• Ctrl
• Cyc sw in
• Delivered torq
• Egr ctrl
• Egr gnd
• Eng1 fuse 10a
• Evap canp
• Evap vent
• Front axle switch (right side of center on axle housing)
• Frt axle sw
• Fuel lev
• Fuel pmp
• Fuel sig ctrl
• Fuse block
• G117 (right rear of engine)
• Gen f
• Gen l
• Gnd
• Hot in run & start
• Iac coil hi
• Iac coil lo
• Iat sig
• Idle air control valve (top of throttle body)
• Ign
• Ign ctrl
• Ign feed
• Ign1 fuse 10a
• Ignition coils
• Instrument cluster systems (speed signal)
• Instrument panel cluster
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi
• Pc sol lo
• Pnk
• Pnk d
• Powertrain control module (left front of engine compt)
• Prnd c
• Recirc door
• Recirc sw
• Red
• Red c
• Ref lo
• Ref low
• Rpm out
• S103
• S151
• S152
• S153
• S154
• S157
• Sens gnd
• Spark plug
• Starting/charging system
• Tan
• Tcc pwm
• Tcc sol
• Tft sens sig
• Tp sig
• Trans rng a
• Transfer case switch (left front of transaxle case)
• Under- hood junction block
• Vss high
• Vss low
• Vss out
• W/ atc
• W/ manual 4wd

5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (1 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (1 of 5) for Chevrolet Tahoe 2001:

• (below steering column) data link connector
• (lower right rear of engine) crankshaft position sensor
• +5v
• 3-2 ss
• Anti-lock brake system
• Body control module (below steering column)
• Brk sw
• C10
• C11
• C12
• Ckp
• Cls 2 data
• Clutch sw
• Cmp
• Coolant lev
• D10
• E12
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Egr input
• Electronic suspension system
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ho2s hi
• Ho2s lo
• Hot at all times
• Hot in run & start
• Ign
• Ign 0 fuse 10a
• Inj1
• Inj2
• Inj3
• Inj4
• Inj5
• Inj6
• Inj7
• Inj8
• Inja fuse 15a
• Injb fuse 15a
• Injectors
• Ks signal
• Lift/dive sig
• O2a fuse 15a
• O2b fuse 15a
• Oil lev
• Pnk
• Pnk b
• Powertrain control module (left front of engine compt)
• Prnd a
• Prnd b
• Prnd p
• Range b
• Range c
• Red
• Ref low
• Req torque
• S103
• Sens gnd
• Sens rtn
• Serial data
• Sp205 (behind headlamp switch)
• Tan
• Under- hood junction block

5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (2 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (2 of 5) for Chevrolet Tahoe 2001:

• (eng harness) s114
• (left front of engine)
• (left rear of engine)
• (left rear of engine) g114
• (not used)
• Air maxi fuse 30a c7
• Ecm b fuse 20a
• Engine coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (left front of cylinder head)
• Engine oil level switch (right side of oil pan)
• Fuel pump relay
• Fuel pump/ level sensor (in fuel tank)
• G104
• G110
• G114 (left rear of engine)
• G117 (right rear of engine)
• G402 (left frame body mount bracket)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter)
• Hot at all times
• Hot in run & start
• Ign e fuse 10a c2
• Knock sensor 1 (under intake manifold)
• Knock sensor 2 (under intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pnk
• Red
• S103
• S104
• S104 (in engine harness)
• S108
• S113 (eng harness)
• Secondary air injection reaction pump (right rear of engine compt)
• Secondary air injection reaction relay (right rear of engine compartment)
• Secondary air injection reaction solenoid (right rear of engine compt)
• Tan
• Throttle position sensor (w/o electronic throttle control) (on throttle body assy)
• Under- hood junction block

5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (3 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (3 of 5) for Chevrolet Tahoe 2001:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• Body junction block
• Brake fuse 10a
• Camshaft position sensor (top center rear of engine)
• Clutch pedal position switch (top of pedal bracket)
• Evap canister purge valve (top right rear of engine)
• Evap canister vent valve (left front side of fuel tank)
• Exhaust gas recirculation valve (top right front of engine)
• F12
• Fuel tank pressure sensor (in fuel tank)
• Fuse block
• Hot in run
• Hot in run & start
• Manifold absolute pressure sensor (top rear of engine)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Pnk b
• Red
• Red e
• Red/
• Rev
• Stop lps fuse 20a
• Stop- lamp switch (top of brake pedal bracket)
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)

5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (4 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (4 of 5) for Chevrolet Tahoe 2001:

• A10
• Accelerator pedal position sensor (w/ electronic throttle control)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• Cruise control system
• Cruise req
• D11
• Data
• Ect fuse 15a
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ground
• Hot in run & start
• Hot in run or start
• Iat sensor
• Ign
• Ign0 fuse 10a
• Mass airflow sensor (in air intake duct)
• Pnk
• Pnk d
• R/a input
• Red
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Sens grd
• Signal
• Stp lp in
• Tan
• Tan b
• Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt)
• Throttle actuator control motor (w/ electronic throttle control) (on throttle body)
• Throttle position sensor (dual track) (w/ electronic throttle control) (on throttle body)
• Tp sens 1
• Tp sens 2
• Under- hood junction block
• Veh stop fuse 10a

5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (5 of 5) for Chevrolet Tahoe 2001

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Denso HO2S (5 of 5) for Chevrolet Tahoe 2001:

• (in engine harness)
• (left front of engine) g110
• (left rear of engine) g114
• 1-2 ss
• 2-3 ss
• 4wd low
• A/c clu
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• Anti-lock brake system (speed signal)
• Automatic transfer case control module (above c3 headlight switch)
• Cruise control system
• Cruise eng
• Ctrl
• Cyc sw in
• Delivered torq
• Egr ctrl
• Egr gnd
• Eng1 fuse 10a
• Evap canp
• Evap vent
• Front axle switch (right side of center on axle housing)
• Frt axle sw
• Fuel lev
• Fuel pmp
• Fuel sig ctrl
• Fuse block
• G117 (right rear of engine)
• Gen f
• Gen l
• Gnd
• Hot in run & start
• Iac coil hi
• Iac coil lo
• Iat sig
• Idle air control valve (top of throttle body)
• Ign
• Ign ctrl
• Ign feed
• Ign1 fuse 10a
• Ignition coils
• Instrument cluster systems (speed signal)
• Instrument panel cluster
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi
• Pc sol lo
• Pnk
• Pnk d
• Powertrain control module (left front of engine compt)
• Prnd c
• Recirc door
• Recirc sw
• Red
• Red c
• Ref lo
• Ref low
• Rpm out
• S103
• S151
• S152
• S153
• S154
• S157
• Sens gnd
• Spark plug
• Starting/charging system
• Tan
• Tcc pwm
• Tcc sol
• Tft sens sig
• Tp sig
• Trans rng a
• Transfer case switch (left front of transaxle case)
• Under- hood junction block
• Vss high
• Vss low
• Vss out
• W/ atc
• W/ manual 4wd