ENGINE PERFORMANCE – Pontiac Montana 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.4L VIN E

3.4L VIN E, Engine Performance Wiring Diagram (1 of 4) for Pontiac Montana 2003

List of elements for 3.4L VIN E, Engine Performance Wiring Diagram (1 of 4) for Pontiac Montana 2003:

• (3x) ref lo
• (in eng compt, left of starter)
• (on air intake, near throttle body assy) intake air temperature sensor
• 24x ign sig ref
• 3x ign sig ref
• 5 v ref
• A/c refrig press sig
• A/t iss sen hi
• A/t iss sen lo
• Air bleed valve
• Air fuse 30a
• Anti-lock brake system
• Axle actuator ctrl
• Bank 1 knock sensor (left side of eng, above starter)
• Battery feed
• Body control module (below right side of dash)
• Bypass
• C15
• Cam pos ref pcm
• Cooling fans system
• Cruise control system
• Cruise inhibit in
• Data link connector (below steering column, on knee bolster)
• Ecm sense fuse 10a
• Egr valve ctrl
• Egr valve grd
• Enhanced evap/ awd fuse 15a
• Evap can purge ctrl
• Evaporative emissions canister purge solenoid valve (top right side of eng, below ignition control module)
• Fan 1 control (lo)
• Fan 2 control (hi)
• G113
• Gnd
• Ho2s sens 2 sig lo
• Ho2s1 low
• Hot at all times
• Hot in run, bulb test or start
• I/p fuse block
• Iac "b" hi
• Iat sens grd
• Ign pos volt
• Ignition control
• Inj 1 control
• Inj 2 control
• Inj 3 control
• Inj 5 control
• Inj 6 control
• Knock sens sig
• Left rear side door actuator control module (left rear trim quarter panel)
• Maf
• Maf sens sig
• Map sens grd
• Mass airflow sensor (in air cleaner duct, left front of eng compt)
• O2 sensor 1 low
• Pcm grd
• Pcm ground
• Pcm/ passkey cluster fuse 10a
• Pnk
• Powertrain control module (in air cleaner assembly, left front of eng compt)
• Pwr
• Rear object sensor control module (right front of cargo area, behind trim panel)
• Rear side door actuator control module
• Required torque
• Right rear side door actuator control module (right rear trim quarter panel)
• S106
• S210
• S321 (body harn, near rear side door act cntrl module breakout)
• S391
• Sen grd
• Serial class 2 data
• Shift sol a
• Shift sol b
• Sp205 (below strng column)
• Tan
• Tcc brake sw
• Tp sens grd
• Trans range "b"
• Transmission control system (rear diff lock)
• Under- hood fuse block
• Vehicle speed sensor (mounted to right side of transaxle)
• Vss hi in
• Vss lo in
• Vss out

3.4L VIN E, Engine Performance Wiring Diagram (2 of 4) for Pontiac Montana 2003

List of elements for 3.4L VIN E, Engine Performance Wiring Diagram (2 of 4) for Pontiac Montana 2003:

• (fuel sender harn, near breakout for c305) s329
• (in eng compt, left of starter)
• 1-2 shift solenoid
• 2-3 shift solenoid
• 5v ref
• A red
• A/t fluid pressure manual valve position switch
• A/t input shaft speed sensor
• Air injection bleed valve (left rear of eng, abaove valve cover)
• Automatic transaxle
• Automatic transaxle fluid temper- ature sensor
• Camshaft position sensor (front of eng, above a/c compressor)
• Crankshaft position sensor a (on front of engine, at end of crankshaft)
• Fuel level sender
• Fuel pump
• Fuel pump fuse 15a
• Fuel pump prime connector
• Fuel pump relay
• Fuel tank
• Fuel tank pressure sensor
• G mil ind (chk eng)
• G113
• G301 (lower left "b" pillar)
• Hot at all times
• Instrument cluster
• Manifold absolute pressure sensor (top right side of eng)
• Map
• Nca
• Pnk
• Pressure control solenoid
• Red
• Rtn
• S106
• S110 (fuel inj harn, near breakout for c102)
• Tan
• Tcc release switch
• Tcc solenoid valve
• Underhood fuse block

3.4L VIN E, Engine Performance Wiring Diagram (3 of 4) for Pontiac Montana 2003

List of elements for 3.4L VIN E, Engine Performance Wiring Diagram (3 of 4) for Pontiac Montana 2003:

• (3x) ref high
• (3x) ref low
• (7x) ref high
• (7x) ref low
• (eng compt, left of starter)
• (top of brake pedal support) stoplight switch
• Air pump relay (right side of engine compt)
• Automatic transmission
• Bypass cntrl
• C2 grd
• Crankshaft position sensor b (lower right side of engine)
• D12
• Elek ign fuse 10a
• Engine coolant temperature sensor (top left rear of eng)
• Engine oil pressure switch (lower left side of eng, above starter)
• Exhaust gas recirc- ulation valve (on upper right rear of eng)
• G101 (at left front of vehicle, right of left headlamp)
• G111
• G113 (in eng compt, left of starter)
• Hot in run, bulb test or start
• Ic cntrl
• Idle air control (iac) valve (on top of eng, front of throttle assembly)
• Ign
• Ignition control module (top right side of eng)
• Pnk
• Pnk b
• Red
• Red a
• S106
• Secondary air injection pump (lower left front of eng compt, on frame rail)
• Tan
• Tcc fuse 10a
• Tcc switch
• Throttle position sensor (top of eng, on throttle body)
• Transmission internal mode switch
• Underhood fuse block

3.4L VIN E, Engine Performance Wiring Diagram (4 of 4) for Pontiac Montana 2003

List of elements for 3.4L VIN E, Engine Performance Wiring Diagram (4 of 4) for Pontiac Montana 2003:

• (eng harn, near pcm breakout)
• (fuel inj harn, near breakout for c102)
• (in eng compt, left & above starter)
• (in eng compt, left of starter)
• 5 v ref
• 5v ref a
• 5v ref b
• A/c comp rly ctrl
• A/c refrig press sig
• A/c refrig- erant pressure sensor (below accumulator)
• A/c request
• A12 pnk
• Air conditioning system
• Air pump relay cntrl
• Anti-lock brakes system
• Cam/ckp batt (+)
• Cam/ckp sens grd
• Crank
• Cruise control system
• Cruise status
• D9 c3
• Delivered torque
• Digital sens rtn
• E9 c1
• Ect sens sig in
• Egr pintle pos sig
• Egr valve ctrl
• Engine oil level indicator switch (mounted on center of oil pan)
• Engine oil level sig
• Evap cann vent valve
• Evaporative emissions canister vent solenoid valve (below center of vehicle, in front fuel tank)
• Fuel injectors
• Fuel level in
• Fuel pump relay ctrl
• G113
• G117
• Generator ctrl
• Heated oxygen sensor 1 (on exhaust manifold, right side of eng)
• Heated oxygen sensor 2 (on exhaust system, behind catalytic converter)
• Ho2s sens 1 sig hi
• Ho2s sens sig 2 hi
• Hot in run, bulb test or start
• Hot in run/start
• Hot in start
• I/p fuse block
• Iac "a" hi
• Iac "a" lo
• Iac "b" lo
• Iat sens in
• Ign 1 uh fuse 15a
• Ign positive voltage
• Inj 4 control
• Inj fuse 10a
• Low reference
• Map sens sig in
• Mil ctrl (chk engine)
• Nca
• O2 sensor 1 htr ctrl
• Oil pressure sw
• Pc sol val hi
• Pc sol val lo
• Pcm/abs fuse 10a
• Pcm/crank fuse 10a
• Pnk
• Powertrain control module (in air cleaner assembly, left front of eng compt)
• Red
• S105
• S106
• S108
• S109
• S167
• Starting/ charging system
• Tan
• Tcc pwm sol ctrl
• Tcc release sw
• Tnk press sens sig
• Tps sens sig in
• Trans fluid temp sig
• Trans parity in
• Trans range "a"
• Trans range "c"
• Under- hood fuse block