Name
| Location
| Locator View
| Connector End View
|
1-2 Shift Solenoid (1-2 SS) Valve
| Inside the automatic transmission
|
|
Automatic Transmission Internal Connector End Views in Automatic Transmission - 4L60E in Transmission/
Transaxle
|
2-3 Shift Solenoid (2-3 SS) Valve
| Inside the automatic transmission
|
|
Automatic Transmission Internal Connector End Views in Automatic Transmission - 4L60E in Transmission/
Transaxle
|
3-2 Shift Solenoid (3-2 SS) Valve Assembly
| Inside the automatic transmission
|
|
Automatic Transmission Internal Connector End Views in Automatic Transmission - 4L60E
in Transmission/ Transaxle
|
4WD Fuse 15 (IP Fuse Block) (4.3L Engine)
| In the IP Fuse Block
| IP Fuse
Block Details in Power Distribution in Electrical Diagnosis
| --
|
A/C Compressor
(4.3L Engine)
| Top LH front of engine
| --
| Electrical Diagnosis Connector End Views Page 202-0
|
A/C Compressor Clutch
| Part of A/C Compressor
| --
| --
|
A/C Compressor Clutch Diode (4.3 L Engine)
| In engine harness breakout,
7.5 cm from the breakout to the A/C Compressor and high pressure switch
| --
| --
|
A/C Compressor Clutch Relay (4.3L Engine)
| In the Underhood Bussed Electrical Center
|
Figure 6: UBEC Internal Location View
| --
|
A/C Compressor High Pressure
Switch (4.3L Engine)
| Rear of A/C Compressor
| --
| --
|
A/C Compressor Pressure Cycling Switch (4.3L Engine)
| At the
Accumulator
| --
| Electrical Diagnosis Connector End Views Page 202-0
|
A/C Fuse (UBEC)
| In the
Underhood Bussed Electrical Center
|
Figure 6: UBEC Internal Location View
| --
|
ABS Fuse 22 (IP Fuse Block)
| In the IP Fuse Block
| IP Fuse Block Details in Power Distribution in Electrical
Diagnosis
| --
|
AM/FM Stereo Radio
| Center of the Instrument Panel
| Figure 9 in Electrical Component Location Views in Electrical
Diagnosis
| --
|
AM/FM Stereo Radio Connector C2 (10 Cavities)
| LH rear of radio
| --
| Electrical Diagnosis Connector End Views
Page 202-2
|
Automatic Transmission (4.3 L Engine)
| See In-Line Connector C175 (4.3L Engine)
| --
| --
|
Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
| Inside
the automatic transmission
|
|
Automatic Transmission Internal Connector End Views in Automatic Transmission - 4L60E in Transmission/ Transaxle
|
Body Bussed Electrical Center (BBEC)
| LH side of dash, near IP fuse Block
| --
| --
|
Camshaft Position
Sensor (4.3L Engine)
| Rear of Distributor
|
Camshaft Position (CMP) sensor, Knock Sensor (KS), and Fuel Pump/Oil
Pressure Switch
| --
|
Central Sequential Fuel Injection (CSFI)
| Top center of engine, forward of distributor
|
MAP, EGR, Purge Solenoid, and Throttle Body
| --
|
CIGAR LTR Fuse 2 (IP Fuse Block)
| In the IP Fuse Block
| IP Fuse Block Details in Power Distribution in Electrical
Diagnosis
| --
|
CLSTR Fuse 11 (IP Fuse Block)
| In the IP Fuse Block
| IP Fuse Block Details in Power Distribution in Electrical
Diagnosis
| --
|
Crankshaft Position Sensor (4.3L Engine)
| Below RH front of engine near harmonic
balancer
|
Crankshaft Position (CKP) Sensor
| --
|
Cruise Control Module
| LH rear of engine compartment on cowl
| --
| --
|
Data Link Connector
| Lower
LH side of instrument panel
| --
| Electrical Diagnosis Connector End Views Page 202-3
|
Distributor (4.3L Engine)
| Top rear of engine
| --
| --
|
ECM B Fuse (UBEC)
| In the Underhood Bussed Electrical Center
|
Figure 6: UBEC Internal Location View
| --
|
ECM I Fuse (UBEC)
| In the Underhood Bussed Electrical Center
|
Figure 6: UBEC Internal Location View
| --
|
Electric Shift Transfer Case (W/ S4WD)
| To the rear of the transmission
|
Figure 1: Electric Shift Transfer Case Locator View
| --
|
Electronic Brake Control Module
(Part of Brake Pressure Modulator Valve)
| LH front fenderwell between the Underhood Bussed Electrical
Center and Grommet P100
|
Figure 3: Brake Control Module Locator View
| --
|
Electronic
Brake Control Module (Part of Brake Pressure Modulator Valve) Connector C1
(10 Cavities)
| Body harness connector on LH of Electronic Brake Control Module/Brake
Pressure Modulator Valve
|
Figure 3: Brake Control Module Locator View
|
Antilock Brake System Connector End Views in Antilock
Brake System in Brakes
|
Electronic Brake Control Module (Part of Brake Pressure
Modulator Valve) Connector C2 (2 Cavities)
| Body harness connector on LH of Electronic
Brake Control Module/Brake Pressure Modulator Valve
|
Figure 3: Brake Control Module Locator View
|
Antilock Brake System Connector End Views in Antilock Brake System in Brakes
|
Electronic Ignition
Control Module (Part of Ignition Coil Assembly) (4.3L Engine)
| Top RH side of engine
|
Ignition Coil, Ignition Control (IC) Module, MAP, Throttle Body, and
Evaporative (EVAP) Canister Purge Valve
| --
|
ENG I Fuse (UBEC)
| In the Underhood Bussed Electrical Center
|
Figure 6: UBEC Internal Location View
| --
|
Engine Coolant Temperature Sensor (4.3L Engine)
| Front of engine near thermostat
housing
|
Left Side of the Engine Components (4.3L)
| --
|
Engine Oil Pressure Gauge Sensor (4.3L Engine)
| Top rear of engine below distributor
|
Throttle Position (TP) Sensor, Idle Air Control (IAC) Valve, and Positive
Crankcase Ventilation Valve (PCV)
| Electrical Diagnosis Connector End Views
Page 202-5
|
Evaporative Emissions Canister Purge Solenoid Valve (4.3L Engine)
| Top RH center
of engine, near fuel injector connector
|
MAP, EGR, Purge Solenoid, and Throttle Body
| --
|
Evaporative Emissions Canister Vent Solenoid Valve (4.3L Engine)
| Crossmember area
of fuel tank, rear center of cross-member behind fuel tank
|
EVAP Canister and EVAP Vent Valve (4DR Utility and Pickup)
| --
|
Exhaust Gas Recirculation Valve (4.3L Engine)
| Top front of engine near drive belt
|
MAP, EGR, Purge Solenoid, and Throttle Body
| --
|
Front Axle Switch
| Front axle, right of
differential
|
Figure 3: Front Axle Switch Locator View
| --
|
Fuel Level Sensor
W/ Fuel Pump (Fuel Sender W/ Pump)
| Top of fuel tank, four wire connector
|
Fuel Tank Pressure Sensor and Fuel Level Sender Assembly
| Electrical Diagnosis Connector End Views
Page 202-6
|
Fuel Pump Prime Connector
| In the Underhood Bussed Electrical Center
|
Figure 6: UBEC Internal Location View
| --
|
Fuel Tank Pressure Sensor
| Top of fuel tank, three wire connector
|
Fuel Tank Pressure Sensor and Fuel Level Sender Assembly
| --
|
Generator (4.3L Engine)
| RH front of engine
|
Figure 2: 4.3L Engine Generator And Starter Locator View
| Electrical
Diagnosis Connector End Views Page 202-6
|
Heated Oxygen Sensor, LH Front (Bank
1, Sensor 1) (4.3L Engine)
| On the rear of the LH exhaust pipe on the left side of
the transmission
|
HO2S
| --
|
Heated Oxygen Sensor, Post-Converter (HO2S Bank 1 Sensor 3) (4.3L Engine)
| Rear of
the catalytic converter in the exhaust pipe
|
HO2S
| --
|
Heated Oxygen Sensor, RH Front
(HO2S Bank 2 Sensor 1) (4.3L Engine)
| RH rear of engine in exhaust pipe
|
HO2S
| --
|
Heater And A/C Controller
| Upper
center of instrument panel
| --
| --
|
Heater And A/C Controller Connector C2 (W/ Manual A/C)
(3 Cavities)
| Upper center of instrument panel
| --
| --
|
HVAC Fuse 9
| In the IP Fuse Block
| IP Fuse Block Details in Power Distribution in Electrical
Diagnosis
| --
|
Idle Air Control Valve Motor (4.3L Engine)
| Top LH side of engine
|
Throttle Position (TP) Sensor, Idle Air Control (IAC) Valve, and Positive
Crankcase Ventilation Valve (PCV)
| --
|
IGN E Fuse (UBEC)
| In the Underhood Bussed Electrical Center
|
Figure 6: UBEC Internal Location View
| --
|
Ignition Coil (Part of Ignition
Coil Assembly) (4.3L Engine)
| Top RH side of engine
|
Throttle Position (TP) Sensor, Idle Air Control (IAC) Valve, and Positive
Crankcase Ventilation Valve (PCV)
| --
|
Ignition Coil Assembly (4.3 L Engine)
| Top RH side of engine
|
Figure 2: 4.3L Engine Generator And Starter Locator View
| --
|
Instrument Cluster
| In the IP ahead of the steering column
| --
| Electrical Diagnosis Connector End Views
Page 202-10
|
Intake Air Temperature Sensor (4.3L Engine)
| LH front of engine compartment in air intake
duct
|
Mass Air Flow (MAF) Sensor and Intake Air Temperature (IAT) Sensor
| --
|
IP Fuse Block
| LH side of the IP near the left front side door jamb switch
| Figure 8 in Electrical
Component Location Views in Electrical Diagnosis
| Electrical Diagnosis Connector End Views
Page
|
Knock Sensor (4.3L Engine)
| Top rear of engine above transmission bell housing
|
Mass Air Flow (MAF) Sensor and Intake Air Temperature (IAT) Sensor
| --
|
Manifold
Absolute Pressure Sensor (4.3L Engine)
| Top center of engine
|
MAP, EGR, Purge Solenoid, and Throttle Body
| --
|
Manual Transmission (4.3L Engine)
| Behind the engine
| --
| --
|
Manual Transmission Clutch Start Switch
| On clutch pedal support
bracket
|
Figure1: Floor Pedals Locator View
| --
|
Mass Air Flow Sensor
| LH front of engine
compartment on air intake duct
|
Mass Air Flow (MAF) Sensor and Intake Air Temperature (IAT) Sensor
| --
|
OXYSEN Fuse
| In the Underhood Bussed Electrical Center
|
Figure 6: UBEC Internal Location View
| --
|
Pressure Control Solenoid (PC SOL) Valve
| Inside the automatic
transmission
|
|
Automatic Transmission Internal Connector End Views in
Automatic Transmission - 4L60E in Transmission/ Transaxle
|
RDO BATT
Fuse 19
| In the IP Fuse Block
| IP Fuse Block Details in Power Distribution in Electrical Diagnosis
| --
|
Stop Lamp Switch
| Mounted on brake pedal
|
Figure1: Floor Pedals Locator View
| Electrical
Diagnosis Connector End Views Page 202-11
|
Throttle Position Sensor (4.3L
Engine)
| Top LH side of engine
|
Throttle Position (TP) Sensor, Idle Air Control (IAC) Valve, and Positive
Crankcase Ventilation Valve (PCV)
| --
|
Torque Converter Clutch Pule Width Modulation Solenoid (TCC PWM SOL)
Valve
| Inside the automatic transmission
|
|
Automatic Transmission Internal Connector End Views in Automatic Transmission - 4L60E in Transmission/ Transaxle
|
Torque Converter Clutch Solenoid (TCC SOL) Valve
| Inside the automatic transmission
|
| --
|
Transfer Case Control Module
(TCCM) (NP1)
| Behind Center of Instrument Panel
|
Figure 5: Shift Control Module Locator View
| Electrical
Diagnosis Connector End Views Page 202-12
|
Transfer Case Select Switch
| Front
center of instrument panel above and to the left of the radio
|
Figure 4: Instrument Panel Center Switch Locator View
| --
|
Transfer Case Select Switch (W/ Electric Shift 4WD) Connector
C2 (4 Cavities)
| Front center of instrument panel above and to the left of the radio
|
Figure 4: Instrument Panel Center Switch Locator View
| Electrical Diagnosis Connector End Views
Page 202-12
|
Transmission Fluid Temperature (TFT) Sensor
| Inside the automatic transmission
| --
| --
|
Transmission Range Switch (Park/Neutral Position And Backup Lamp Switch)
| LH side of transmission
|
Figure 3: Transmission Range Switch Locator View
| --
|
Transmission Range Switch
(Park/Neutral Position And Backup Lamp Switch) Connector C1
| LH side of transmission
|
Figure 3: Transmission Range Switch Locator View
| --
|
Transmission Range Switch
(Park/Neutral Position And Backup Lamp Switch) Connector C2
| LH side of transmission
|
Figure 3: Transmission Range Switch Locator View
| --
|
Truck Body Control Module
| Lower
rear of IP on the heater assembly
| Figure 8 in Electrical Component Location Views in Electrical
Diagnosis
| --
|
Truck Body Control Module Connector C1 (24 Cavities)
| Lower rear of IP on the
heater assembly
| --
| Electrical Diagnosis Connector End Views Page 202-14
|
Truck Body
Control Module Connector C2 (24 Cavities)
| Lower rear of IP on the heater assembly
| --
| Electrical
Diagnosis Connector End Views Page 202-15
|
Underhood Bussed Electrical
Center (UBEC)
| Over left front fender well
| --
| --
|
Underhood Bussed Electrical Center (UBEC) Connector C1
(Body, 68 Cavities)
| Below the Underhood Bussed Electrical Center
| --
| --
|
Underhood Bussed Electrical
Center (UBEC) Connector C2 (4.3L Engine, 68 Cavities)
| Below the Underhood Bussed Electrical
Center
| --
| --
|
Underhood Bussed Electrical Center (UBEC) Connector C3 (Chassis, 32
Cavities)
| Below the Underhood Bussed Electrical Center
| --
| --
|
Vehicle Control Module (VCM)
(4.3L Engine)
| RH side of engine compartment
|
VCM
| --
|
Vehicle Control Module (VCM) (4.3L Engine) Connector C1 (32 Cavities)
| RH side
of engine compartment
|
VCM
|
VCM Connector End Views in Engine Controls - 4.3L in Engine
|
Vehicle Control Module (VCM) (4.3L Engine)
Connector C2 (32 Cavities)
| RH side of engine compartment
|
VCM
|
VCM Connector End Views in Engine Controls - 4.3L in Engine
|
Vehicle Control
Module (VCM) (4.3L Engine) Connector C3 (32 Cavities)
| RH side of engine compartment
|
VCM
|
VCM Connector End Views in Engine Controls - 4.3L
in Engine
|
Vehicle Control Module (VCM) (4.3L Engine) Connector C4 (24 Cavities)
| RH side
of engine compartment
|
VCM
|
VCM Connector End Views in Engine Controls - 4.3L in Engine
|
Vehicle Speed Sensor (VSS) (4.3L Engine
W/ A/T, W/O Transfer Case)
| RH rear of automatic transmission
| --
| Electrical Diagnosis Connector
End Views Page 202-15
|
Vehicle Speed Sensor (VSS) (4.3L Engine W/ Electric Shift
4WD)
| LH
Rear of Electric Shift Transfer Case
| --
| Electrical Diagnosis Connector End Views Page 202-15
|
Vehicle Speed Sensor (VSS) (4.3L Engine W/ M/T W/O Transfer Case)
| LH rear of manual
transmission
| --
| Electrical Diagnosis Connector End Views Page 202-15
|
C100 (Engine
Harness to Oxygen Sensor Harness) (4.3L Engine, 6 Cavities)
| RH rear of engine compartment,
near the accumulator
| --
| --
|
C101 (Engine Harness to Body Harness) (4.3L Engine, 10 Cavities)
| RH engine compartment,
near VCM
| --
| Electrical Diagnosis Connector End Views Page 202-18
|
C104 (Chassis
to 4.3L Engine Harness) (6 Cavities)
| LH side of transmission
| --
| Electrical Diagnosis Connector End Views
Page 202-19
|
C105 (Engine Harness to LH Front Heated Oxygen Sensor Pigtail Connector)
(4.3L Engine, W/ A/T) (4 Cavities)
| On the LH side of the transmission
| --
| --
|
C105 (Engine Harness
to LH Front Heated Oxygen Sensor Pigtail Connector) (4.3L Engine, W/ M/T)
(4 Cavities)
| On the LH side of the transmission
| --
| --
|
C114 (W/ Electric Shift 4WD, Body harness to front axle
switch extension harness) (2 Cavities)
| LH center of engine compartment, near the electronic brake
control module)
|
Figure 6: LH Front Fender Area Locator View
| Electrical Diagnosis Connector
End Views Page
|
C116 (M to M) (W/ A/T and Transfer Case) (2 Cavities)
| Near the
top rear of the automatic transmission
|
Figure 1: Electric Shift Transfer Case Locator View
| --
|
C116 (M to M) (W/ M/T and Transfer Case) (2 Cavities)
| Near the LH rear of the
manual transmission
|
Figure 1: Electric Shift Transfer Case Locator View
| --
|
C125 (Oxygen Sensor
Harness to Post-Converter Heated Oxygen Sensor Pigtail Connector) (4.3L Engine)
(4 Cavities)
| Chassis harness near the Post-Converter (Bank 1, Sensor 3) Heated Oxygen
Sensor
| --
| --
|
C126 (Oxygen Sensor Harness to RH Front Heated Oxygen Sensor Pigtail
Connector) (4.3L Engine) (4 Cavities)
| Chassis harness near the RH Front (Bank 2, Sensor 1) Heated
Oxygen Sensor
| --
| --
|
C175 (Engine Harness to Automatic Transmission Connector) (4.3L Engine)
(13 Cavities)
| RH rear of the automatic transmission
| --
|
Automatic Transmission Inline Harness Connector End View in Automatic Transmission - 4L60E
in Transmission/ Transaxle
|
C203 (Body Harness to IP Harness) (116 Cavities)
| RH side of dash
| Figure
9 in Electrical Component Location Views in Electrical Diagnosis
| Electrical Diagnosis
Connector End Views Page 202-26
|
G102 (Circuit 350, 4.3L Engine Harness)
| LH rear
of engine block
| --
| --
|
G103 (Circuit 351, 4.3L Engine Harness)
| LH rear of engine block
| --
| --
|
G104 (Circuit
450, 4.3L Engine Harness)
| RH rear of engine block
| --
| --
|
G105 (Circuit 451, 4.3L Engine
Harness)
| RH rear of engine block
| --
| --
|
G200 (Circuit 1850, Body Harness)
| LH front of dash panel, above grommet P100
| --
| --
|
G201 (Circuit
1850, Body Harness)
| LH front of dash panel, above grommet P100
| --
| --
|
G402 (Circuit 1750, Chassis
Harness)
| Inside rear of LH Frame Rail
| --
| --
|
P100 (IP Bulkhead Pass-Through)
| LH rear of engine compartment,
on cowl
| --
| --
|
S100 (Circuit 452, 4.3L Engine Harness)
| Between the breakouts for the starter and
the generator, 4 cm from the breakout to the generator
| Figure 1 in Electrical Component
Location Views in Electrical Diagnosis
| --
|
S101 (Circuit 474, 4.3L Engine Harness)
| Between the breakouts
to the generator and the fuel injector connector, 5 cm from the breakout to
the generator
| Figure 1 in Electrical Component Location Views in Electrical Diagnosis
| --
|
S102 (Circuit 470, 4.3L Engine Harness)
| Between the breakouts for the generator
and the fuel injection connectors, 5 cm from the breakout to the fuel injection
connector
| Figure 1 in Electrical Component Location Views in Electrical Diagnosis
| --
|
S103 (Circuit 350, 4.3L Engine Harness W/ A/C)
| In the breakout to the A/C compressor
and cutoff switch, 7.5 cm from the breakout
| Figure 1 in Electrical Component Location
Views in Electrical Diagnosis
| --
|
S104 (Circuit 59, 4.3L Engine Harness W/ A/C)
| In the breakout
to the A/C compressor and cutoff switch, 7.5 cm from the breakout
| Figure 1 in Electrical
Component Location Views in Electrical Diagnosis
| --
|
S106 (Circuit 351, 4.3L Engine
Harness)
| Between the breakouts to the connector for the rear oxygen sensors and the
body harness connector, 6.5 cm from the breakout to the oxygen sensor connector
| --
| --
|
S113 (Circuit 1020, Body Harness)
| Between the Blower Motor breakout and the Blower Motor
Relay breakout, 13 cm from the breakout to the blower motor
| --
| --
|
S113 (Circuit
1020, Body Harness)
| Between the breakouts to the VCM and the blower motor relay, 13 cm from
the breakout to the VCM
| --
| --
|
S133 (Circuit 839, Automatic Transmission harness)
| Inside the Automatic Transmission-A/T
only.
| --
| --
|
S138 (Circuit 420, Body harness)
| Between the Blower Motor Resistor breakout and the Windshield
Wiper Motor breakout, 6 cm from the breakout to the resistor.
| --
| --
|
S140 (Circuit
450, 4.3L Engine Harness W/ A/T)
| 15 cm from the end of vehicle speed sensor connector
| --
| --
|
S140 (Circuit 450, 4.3L Engine Harness W/ M/T)
| 20 cm from the end of vehicle speed sensor
connector
| --
| --
|
S150 (Circuit 539, 4.3L Engine Oxygen Sensor Harness)
| Between the breakouts
to the RH Front and the post-catalytic oxygen, 10 cm from the breakout to
the RH Front sensor
| --
| --
|
S151 (Circuit 350, 4.3L Engine Oxygen Sensor Harness)
| Between the In-Line Connector
and the RH Front oxygen sensor, 10 cm from the breakout to the RH Front sensor
| --
| --
|
S152 (Circuit 351, 413, and 451, 4.3L Engine Harness)
| Between the breakouts
for the LR and RR engine block grounds, 15 cm from the breakout to the LR
engine grounds
| --
| --
|
SP200 (Circuits 41, 241, 341, 817 Splice Pack, Body Harness)
| Strapped to the
body harness in the center front of dash area, to the right of SP204
| --
| --
|
SP201 (Data Link Connector Spice Pack, Body Harness)
| LH side of dash panel, below
IP Fuse Block
| --
| --
|
SP202 (379, 1850 Splice Pack, Body Harness)
| Strapped to body harness at LH center of
the front of dash area
| --
| --
|
SP422 (Pickup Chassis W/ 4.3L Engine, Circuit 470)
| On the LH frame rail behind
the crossmember at the transmission
| --
| --
|
