ENGINE PERFORMANCE

6.2L VIN 8

(in chassis harness 39 cm from g401 breakout) j403
(on front of right cylinder head) g103
5-vol
5-volt ref 2
A/c comp
A/c pres sig
Acc
Acc ser data
Accelerator pedal position (app) sensor (above accelerator pedal assembly)
Air conditioning system
App sens 1
App sens 2
Batt positive
Body control module (bcm) (on lower left side of i/p to the left of steering column)
Computer data lines system
Cooling fans system
Data bus+
Data bus-
Ecm batt fuse 10 10a
Ecm ign fuse 47 15a
Engine control module (ecm) (left front of engine compt below battery & fuse block underhood)
Evap vent
Exterior lights system
Fan rel ctrl
Ftp sig
Fuel lvl-pri
Fuel pump & sender assembly (in fuel tank)
Fuel tank pressure (ftp) sensor (on fuel tank, integral to fuel pump & sender assembly)
G103 (on front of right cylinder head)
Ground
Ho2s hi b1s2
Ho2s hi b2s2
Ho2s ht b1s2
Ho2s ht b2s2
Ho2s lo b1s2
Ho2s lo b2s2
Hot at all times
Hot w/ run/crnk relay energized
Iat sens sig
Ignition switch
Ignition vol
J103
J130
J213
J356
Lo ref
Lock
Maf sens sig
Mass air flow (maf)/intake air temperature (iat) sensor (in air induction tube)
Mil control
P/n sig
Pnk
Pnk a
Rel ctrl
Relay ctrl
Rly coil ctrl
Run
Start
Starting/charging system
Tan
Tcc brk sig
Tcm batt fuse 12 15a
Transmissions system
Underhood fuse block (at left side of engine compt, near battery)
Vehicle speed (vss) sensor (on rear of transfer case assembly above output shaft)
Vss hi sig
Vss lo sig

Ecm/throt cont fuse 3 15a
Eng fuse 2 15a
Evaporative emissions (evap) canister vent solenoid valve (lower right rear of vehicle on evaporative emission canister)
Fuel injectors (upper left side of engine)
Heated oxygen sensor (ho2s) bank 1 sensor 2 (under the vehicle to left side of engine after catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 2 (in right exhaust pipe, after catalytic converter)
Hot at all times
Inj-a fuse 20 20a
Inj-b fuse 11 20a
Ipc fuse 39 10a
Nca
O2-a snsr fuse 16 10a
O2-b snsr fuse 6 10a
Pnk
Power distribution system
Pwr/ trn relay
Tan
Underhood fuse block (at left side of engine compt, near battery)

(front of engine, behind water pump) camshaft position (cmp) actuator solenoid valve
(lower left side of instrument panel to left of steering column) left i/p junction block
(on lower right side of oil pan) engine oil level switch
Computer data lines system
Engine coolant temperature (ect) sensor (left side of engine block, between cylinder 3 & 5)
Engine oil pressure (eop) sensor (on rear side of engine block behind intake manifold)
Fuel injectors (upper right side of engine)
G103 (on front of right cylinder head)
G200 (on left side of dash, behind left kick panel)
Gnd
Ground distribution system
Heated oxygen sensor (ho2s) bank 1 sensor 1 (under the vehicle to left side of engine before catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 1 (under the vehicle to right side of engine before catalytic converter)
Instrument panel cluster (ipc)
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine in front of starter)
Logic
Low engine oil pressure ind
Low speed
Malfunction indicator lamp
Nca
Pnk
Tan

(5 cm from x111 breakout, between breakouts for ignition coils 4 & 6)
(at right side of engine)
(left front of engine compt below battery & fuse block underhood) engine control module (ecm)
(top of engine mounted to intake manifold, on left side near injector 1) evaporative emission (evap) canister purge solenoid valve
(top of engine, mounted to front of intake manifold) throttle body assembly
5v ref2
A pnk
Cam sol ctl
Camshaft position (cmp) sensor (front of engine above crank pulley)
Crankshaft position (ckp) sensor (at lower right rear side of engine block, behind starter solenoid)
Ect sig
G102 (at left front side of engine block)
Gen fdc sig
Ho2s ht b1s1
Ho2s ht b2s1
Ignition coil 2
Ignition coil 4
Ignition coil 6
Ignition coil 8
Inj 1 ctl
Inj 2 ctl
Inj 3 ctl
Inj 4 ctl
Inj 5 ctl
Inj 6 ctl
Inj 7 ctl
Inj 8 ctl
J160
J161
J162
Ks1 sig
Ks2 sig
Lo ref
Manifold absolute pressure (map) sensor (on top rear of engine, on intake manifold)
Nca
Oil lvl sw sig
Pnk
Red
Sol ctrl
Spark plug
Starting/ charging system
Tac mot ctl 1
Tac mot ctl 2
Tan

(at left side of engine)
(mounted to left side of frame assembly) fuel pressure sensor
(mounted to rear frame near the evap canister vent solenoid valve) fuel pump flow control module
5-volt
5v ref1
Batt
Chg ind sig
Ckp sig
Cmp sig
Computer data lines system
Data bus+
Data bus-
Drain wire
Engine control module (ecm) (left front of engine compt below battery & fuse block underhood)
Eop sig
Fuel fuse 18 20a
G102 (at left front side of engine block)
G300 (on left side body mount, in front of driver door)
Ground
Ho2s hi b1s1
Ho2s hi b2s1
Ho2s lo b1s1
Ho2s lo b2s1
Hot at all times
Ic 1 ctl
Ic 2 ctl
Ic 3 ctl
Ic 4 ctl
Ic 5 ctl
Ic 6 ctl
Ic 7 ctl
Ic 8 ctl
Ign vol
Ignition coil 1
Ignition coil 3
Ignition coil 5
Ignition coil 7
J140
J141
J142 (in ignition coil jumper harness, 5 cm from x111 breakout, between the breakouts for ignition coils 3 & 5)
J423
Lo ref
Lo reference
Low ref
Map sig
Nca
Pnk
Pump ctrl
Red
Rel ctrl
Sens sig
Ser data
Spark plug
Starting/charging system
Tan
Tp sens1 sig
Tp sens2 sig
Underhood fuse block (at left side of engine compt, near battery)