CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Boost Pressure Sensor (Diesel) BK Top Left of Engine N/S
Brake Fuid Level Switch BK On Master Cylinder 6
Brake Lamp Switch BK At Top Of Brake Pedal 35, 36
Brake Transmission Shift Interlock
Solenoid (EATX)BK Near Steering Column 15, 16, 17, 26
C100 BK Left Fender Shield 5
C101 LTGY Left Fender Shield 5
C102 (2.4L) BK Top Front of Engine 10
C102 (3.3/3.8L) BK At Fuel Rail 13
C103 (Diesel) BK Left Side Engine Compartment N/S
C106 (BUX) BK Near Left Headlamp Leveling Motor N/S
C107 (BUX) BK Near Right Headlamp Leveling Motor N/S
C200 GY Left Side Instrument Panel 15, 16, 25, 35, 36
C201 YL Left Side Instrument Panel 15, 16, 25, 35, 36
C202 GY Right Side Instrument Panel A/C
Heatrer Unit15, 19, 24
C203 (United Kingdom) WT Right Side of Instrument Panel N/S
C300 (LHD) BK Left Front Door Lower N/S
C300 (RHD) BK Right Front Door Lower
C301 LTGY Left Front Door Upper N/S
C302 LTGY Right Front Door Upper 8, 33, 37
C303 (LHD) BK Right Front Door Lower 8, 37
C303 (RHD) BK Left Front Door Lower 33, 37
C304 YL Left Wire Track Seat to Body 27
C305 GY Left Wire Track Seat to Body 27
C306 YL Right Wire Track Seat to Body 28
C307 GY Right Wire Track Seat to Body 28
C308 BL Left Rear Sliding Door 34
C309 GN Right Rear Sliding Door 27, 28, 33
C310 BK At Front Console N/S
C311 GY Rear A/C Switch N/S
C312 GY At Dome Lamp 28, 33
C313 BK At Rear Console N/S
C314 BK Left Side Liftgate 42
C315 BK Right Side Liftgate 42
C316 BK Wire Track to Sliding Door N/S
C317 BK Right Sliding Door 27
C318 (Trailer Tow) BK Left Quarter N/S
C319 (Except Built-up Export) Left Side Liftgate N/S
C320 DKGY Driver Power Seat on Seat Harness N/S
C321 DKGY Under Passenger Seat N/S
C322 BK On Seat Harness to Body 27
C324 BK Left Sliding Door N/S
8W - 91 - 2 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONRS
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
ProCarManuals.com
CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Driver Power Seat Front Riser
MotorRD At Seat N/S
Driver Power Seat Horizontal Motor BK At Seat N/S
Driver Power Seat Rear Riser
MotorRD At Seat N/S
Driver Power Seat Recliner Motor GN At Seat N/S
Driver Power Seat Switch GN At Switch N/S
Driver Power Window Motor RD At Motor N/S
Driver Power Window Switch GN At Switch N/S
Driver Power Window Switch
(RHD)NAT At Switch N/S
Driver Seatbelt Switch WT At Switch on Seat Harness N/S
Driver Seatbelt Tensioner On Seat Harness N/S
EGR Solenoid (Diesel) BK Above Transmission
Right Side of EngineN/S
EGR Solenoid GY Above Transmission
Right Side of Engine9, 10, 11, 13
Electric Wiper De-Icer-C1 WT Right Side Instrument Panel 15, 1923
Electric Wiper De-Icer-C2 WT Left Side Instrument Panel 15, 16, 22
Engine Control Module C1 (Diesel) BK Right Side of Engine 11
Engine Control Module C2 (Diesel) BK Right Side of Engine 11
Engine Coolant Temperature
Sensor (Gas)BK On Cylinder Block N/S
Engine Coolant Temperature
Sensor (Diesel)BL On Cylinder Block 11
Engine Oil Pressure Sensor
(Diesel)BK Rear of Engine 12
Engine Oil Pressure Switch (Gas) LTGN On Cylinder Block 9
Engine Oil Temperature Sensor
(Diesel)BK Rear of Engine 12
EVAP/Purge Solenoid BK Right Motor Mount 9, 13
Evaporator Temperature Sensor BK Right Side of HVAC N/S
Floor Console Lamp BK At Lamp N/S
Floor Console Power Outlet RD At Front Console N/S
Front Blower Module C1 (ATC) BK On HVAC N/S
Front Blower Module C2 (ATC) BK On HVAC N/S
Front Cigar Lighter RD/NAT Rear of Lighter 15, 18, 20
Front Reading Lamps/Switch BK At Switch N/S
Front Washer Pump Motor BK Right Fender Well 3
Fuel Heater (Diesel) BK Left Rear Engine Compartment N/S
Fuel Injector No.1 BK At Fuel Injector N/S
Fuel Injector No.1 (Diesel) BK At Fuel Injector 11
Fuel Injector No.2 BK At Fuel Injector N/S
Fuel Injector No.2 (Diesel) BK At Fuel Injector 11
8W - 91 - 4 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONRS
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
ProCarManuals.com
CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Liftgate Ajar Switch (Manual
Release)BK At Latch 42
Liftgate Ajar Switch (Power
Release)BK Lower Liftgate 42
Liftgate Cinch/Release Motor BL Liftgate N/S
Liftgate Cylinder Lock Switch BK At Switch 42
Liftgate Left Pinch Sensor BK Left Side of Liftgate N/S
Liftgate Right Pinch Sensor BK Right Side of Liftgate N/S
Low Note Horn BK Left Frame Rail 5
Manifold Absolute Pressure Sensor BK On Intake 10
Mass Air Flow Sensor (Diesel) OR Top of Engine 11, 12
Memory Seat/Mirror Module C1 GY Under Driver Seat N/S
Memory Seat/Mirror Module C2 GY Under Driver Seat N/S
Memory Seat/Mirror Module C3 WT Under Driver Seat N/S
Memory Seat/Mirror Module C4 GY Under Driver Seat N/S
Memory Seat Front Vertical Motor RD Under Seat N/S
Memory Seat Front Vertical
Position SensorBK Under Seat N/S
Memory Seat Horizontal Motor BK Under Seat N/S
Memory Seat Horizontal Position
SensorBK Under Seat N/S
Memory Seat Rear Vertical Motor RD Under Seat N/S
Memory Seat Rear Vertical Position
SensorBK Under Seat N/S
Memory Seat Recliner Motor GN Under Seat N/S
Memory Seat Recliner Position
SensorBK Under Seat N/S
Memory Seat Switch BK At Switch Driver Door N/S
Message Center WT Rear of Message Center 15, 16, 23
Mode Door Actuator GY Left Side of HVAC N/S
Multi Function Switch BK At Steering Column 15, 16, 17, 18, 26
Output Speed Sensor GY Front of Transmission 14
Overhead Console BK Front of Console N/S
Oxygen Sensor 1/1 Upstream BK Rear of Engine 9, 10, 14
Oxygen Sensor 1/2 Downstream BK Rear of Engine 9, 10, 14
Park/Neutral Positon Switch BK Front of Transmission 10
Passenger Airbag YL Passenger Side of Instrument Panel 15, 18, 19 24
Passenger Blend Door Actuator On HVAC N/S
Passenger Door Courtesy Lamp BK At Lamp 37
Passenger Door Lock Switch BK At Switch 37
Passenger Folding Mirror Relay BL Right Kick Panel N/S
Passenger Heated Seat Back GN At Seat N/S
Passenger Heated Seat Cushion BK At Seat N/S
Passenger Heated Seat Module C1 GY At Heated Seat N/S
RS8W-91 CONNECTOR/GROUND/SPLICE LOCATION8W-91-7
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
ProCarManuals.com
CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Right Seat Airbag YL At Passenger Seat N/S
Right Side Impact Airbag Control
ModuleYL/RD Right B Pillar 33
Right Sliding Door Control Module
C1BK Rear of Door 38, 39
Right Sliding Door Control Module
C2BK/RD Rear of Door 38, 39
Right Sliding Door Latch Sensing
SwitchBK At Sliding Door 38
Right Sliding Door Lock Motor BK Rear of Door 38
Right Sliding Door Lock Motor/Ajar
SwitchBK At Latch N/S
Right Sliding Door Motor BK At Sliding Door 38
Right Speed Control Switch BK At Steering Wheel N/S
Right Stop/Turn Signal Relay BK LT Quarter Panel N/S
Right Turn Signal Lamp OR At Lamp N/S
Right Visor/Vanity Lamp BK At Lamp N/S
Sentry Key Immobilizer Module BK At Steering Column 15, 16, 17, 18, 26
Siren (United Kingdom) BK Left Front Body N/S
Solenoid/Pressure Switch
Assembly (EATX)BK Side of Transmission N/S
Speed Control Servo BK Near Controller Antilock Brake 14
Thatcham Alarm Module C1 BK Top Right Side of Instrument Panel
Near SpeakerN/S
Thatcham Alarm Module C1 WT Top Right Side of Instrument Panel
Near SpeakerN/S
Throttle Position Sensor GY On Throttle Body 9, 13
Torque Converter Clutch Solenoid BK Front of Transmission 10
Traction Control Switch BK Rear of Swtich 16, 17, 26
Trailer Tow Connector BK Left Quarter Panel N/S
Transmission Control Module BK Top of Transmission 14
Transmission Range Sensor GY Top of Transmission 14
Vehicle Speed Sensor BK Rear of Transmission 9, 12
Washer Fluid Level Switch BK Bottom of Reservoir 3
Water in Fuel Sensor (Diesel) Left Rear Engine Compartment N/S
Wiper Module BK Left Side Cowl 6
8W - 91 - 10 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONRS
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
ProCarManuals.com
GROUNDS
GROUND NUMBER LOCATION FIG.
G100 Body Ground Near Powertrain Control Module N/S
G101 Above Starter 10
G102 Left Headlamp Area 1
G103 Above Starter 10
G200 Right Side of Instrument Panel 15, 19, 24
G201 Right Side of Instrument Panel 15, 19, 24
G202 Near Radio N/S
G300 Left B Pillar 27
G301 Right B Pillar 28, 33
G302 Left Rear Quarter N/S
G400 Liftgate Ground N/S
SPLICES
SPLICE NUMBER LOCATION FIG.
S101 800mm from T/O for G102 1
S102 500mm from T/O for G102 1
S103 (2.5L) Between T/O for Battery Temperature Sensor and T/O
for C10211
S103 (3.3L/3.8L) Near T/O for C100 N/S
S104 Near T/O for G102 1
S105 (3.3L/3.8L) Near T/O for Battery (+) N/S
S106 (2.4L) 40mm from T/O for Torque Converter Clutch Solenoid 10
S106 (2.5L) Near T/O for Battery Temperature Sensor 11
S106 (3.3L/3.8L) Near T/O for G103 14
S107 (2.4L) In T/O for EGR Solenoid 10
S107 (2.5L) Between T/O for Engine Starter Motor and T/O for
Engine Control Module C112
S107 (3.3L/3.8L) In T/O for EGR Solenoid 14
S108 (3.3L/3.8L) Near T/O for Powertrain Control Module N/S
S109 (3.3L/3.8L) Near T/O for Camshaft Position Sensor N/S
S110 Near T/O to G102 N/S
S111 (2.4L) Near T/O for C101 N/S
S111 (2.5L) Near T/O for Battery (-) N/S
S111 (3.3L/3.8L) Near T/O for Powertrain Control Module N/S
S112 Near T/O for Intelligent Power Module - C3 N/S
S113 (2.4L) Near T/O for Park/Neutral Position Switch N/S
S114 (3.3L/3.8L) In T/O to Transmission Control Module N/S
S115 (3.3L/3.8L) In T/O to Transmission Control Module N/S
S116 (2.4L) 180mm from T/O for Torque Converter Clutch Solenoid 10
S116 (2.5L) Near T/O for Mass Air Flow Sensor 12
S116 (3.3L/3.8L) Near T/O for Ignition Coil Pack 14
RS8W-91 CONNECTOR/GROUND/SPLICE LOCATION8W-91-11
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
ProCarManuals.com
SPLICE NUMBER LOCATION FIG.
S117 (2.4L) Neat T/O for G101 and G103 10
S117 (3.3L/3.8L) Near T/O for Output Speed Sensor 14
S118 (2.4L) Near T/O for Knock Sensor 10
S119 (2.5L) Near T/O for Engine Starter Motor 11
S120 (2.4L) Near T/O for Oxygen Sensors 9
S120 (3.3L/3.8L) Near T/O for Oxygen Sensors 14
S121 (3.3L/3.8L) Near T/O for Output Speed Sensor 14
S122 (2.4L) In T/O to Engine Starter Motor 10
S122 (3.3L/3.8L) In T/O to Engine Starter Motor 14
S123 In T/O to Low Note Horn 5
S124 (2.4L) Near T/O for Fuel Injector No.2 N/S
S124 (3.3L/3.8L) Near T/O for Fuel Injector No.5 and No.6 N/S
S125 (2.4L) In T/O for Manifold Absolute Pressure Sensor N/S
S126 In Right Headlamp Leveling Assembly N/S
S127 (2.5L) Near T/O for Engine Starter Motor N/S
S128 (2.5L) Near T/O for Engine Starter Motor 11
S129 (2.5L) Near T/O for Battery (+) N/S
S130 (2.5L) Near T/O for Battery (+) N/S
S131 (3.3L/3.8L) Near T/O for Transmission Control Module N/S
S132 (2.5L) Near T/O for Battery (+) N/S
S133 (2.5L) Near T/O for Intelligent Power Module C3 N/S
S134 Near T/O for Controller Antilock Brake N/S
S135 (2.5L) Near T/O for Glow Plug No.2 11
S136 (2.5L) Between T/O for Radiator Fan No.2 and T/O for G102 N/S
S137 (2.5L) Near T/O for A/C Compressor Clutch 11
S138 (2.5L) Between T/O for Radiator Fan No.2 and T/O for G102 N/S
S139 (2.5L) Between T/O for Engine Starter Motor and T/O for
Engine Control Module C112
S141 (2.4L) Near T/O for Powertrain Control Module N/S
S141 (2.5L) Near /t/O for G100 N/S
S141 (3.3L/3.8L) Near T/O for Powertrain Control Module N/S
S142 (3.3L/3.8L) Near T/O for A/C Compressor Clutch 14
S143 (2.5L) Near T/O for Engine Control Module C1 11
S143 (3.3L/3.8L) Near T/O for Intelligent Power Module - C3 N/S
S144 (2.5L) Between T/O for Battery Temperature Sensor and T/O
for C10311
S145 (2.5L) Near T/O for Battery (+) N/S
S148 (2.5L) Near T/O for Engine Starter Motor 11
S150 (2.5L) Between T/O for Battery Temperature Sensor and T/O
for C103N/S
S151 (2.5L) Near T/O for Radiator Fan Relay No.1 2
S152 (2.5L) Near T/O for Left Fog Lamp N/S
S157 (2.5L) Near T/O for Glow Plug No.1 11
8W - 91 - 12 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONRS
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
ProCarManuals.com
SPLICE NUMBER LOCATION FIG.
S177 In Right Headlamp Wiring Assembly N/S
S179 In Left Headlamp Wiring Assembly N/S
S187 (2.5L) Near T/O for Engine Control Module C1 11
S188 (2.5L) Near T/O for Radiator Fan Relay No.1 2
S201 In T/O to Instrument Panel Speaker 15, 21
S202 Near T/O for Instrument Panel Switch Bank 15, 21
S203 Near T/O for Instrument Panel Switch Bank 15, 21
S204 Near T/O to Instrument Panel Speaker 15, 21
S205 Near T/O for C201 15
S206 Near T/O for Instrument Cluster 15
S207 In A/C Unit Assembly N/S
S208 (RHD) Between T/O for Antenna Connector and T/O for Front
Cigar Lighter21
S209 (RHD) Between T/O for Front Cigar Lighter and T/O for Brake
Transmission Shift Interlock Solenoid21
S210 (RHD) Near T/O for C203 21
S211 In Steering Column Wiring Assembly N/S
S212 In Steering Column Wiring Assembly N/S
S302 In Floor Pan Track Wiring 31
S303 In T/O to Data Link Connector 31
S304 Near T/O for C307 32
S305 Near T/O for Memory Seat/Mirror Module - C2 N/S
S306 In Floor Pan Track Wiring 32
S307 Near T/O for Memory Power Seat Switch N/S
S308 In Floor Pan Track Wiring 31
S309 In Floor Pan Track Wiring 31
S310 Near T/O for C301 30
S311 In Floor Pan Track Wiring 29
S312 Near T/O for C320 N/S
S313 Near T/O for Power Liftgate Module 40
S314 In Floor Pan Track Wiring 29
S315 In Floor Pan Track Wiring 29
S316 In Floor Pan Track Wiring 29
S317 Near T/O for C101 30
S318 Near T/O for Power Seat Circuit Breaker N/S
S319 In Floor Pan Track Wiring 32
S320 Near T/O for C200 31
S321 In T/O to Data Link Connector 31
S322 Near T/O for C301 30
S323 In Floor Pan Track Wiring 31
S324 In Floor Pan Track Wiring 29
S325 In Floor Pan Track Wiring 29
S326 Near T/O for C101 30
RS8W-91 CONNECTOR/GROUND/SPLICE LOCATION8W-91-13
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
ProCarManuals.com
(3) Remove torque converter or clutch housing
cover and inspect rear of block for evidence of oil.
Use a black light to check for the oil leak. If a leak is
present in this area, remove transmission for further
inspection.
(a) Circular spray pattern generally indicates
seal leakage or crankshaft damage.
(b) Where leakage tends to run straight down,
possible causes are a porous block, oil gallery cup
plug, bedplate to cylinder block mating surfaces
and seal bore. See proper repair procedures for
these items.
(4) If no leaks are detected, pressurize the crank-
case as previously described.
CAUTION: Do not exceed 20.6 kPa (3 psi).
(5) If the leak is not detected, very slowly turn the
crankshaft and watch for leakage. If a leak is
detected between the crankshaft and seal while
slowly turning the crankshaft, it is possible the
crankshaft seal surface is damaged. The seal area on
the crankshaft could have minor nicks or scratches
that can be polished out with emery cloth.
CAUTION: Use extreme caution when crankshaft
polishing is necessary to remove minor nicks and
scratches. The crankshaft seal flange is especially
machined to complement the function of the rear oil
seal.
(6) For bubbles that remain steady with shaft
rotation, no further inspection can be done until dis-
assembled.
(7) After the oil leak root cause and appropriate
corrective action have been identified, replace compo-
nent(s) as necessary.
DIAGNOSIS AND TESTING - CYLINDER
COMPRESSION PRESSURE TEST
The results of a cylinder compression pressure test
can be utilized to diagnose several engine malfunc-
tions.
Ensure the battery is completely charged and the
engine starter motor is in good operating condition.
Otherwise the indicated compression pressures may
not be valid for diagnosis purposes.
(1) Check engine oil level and add oil if necessary.
(2) Drive the vehicle until engine reaches normal
operating temperature. Select a route free from traf-
fic and other forms of congestion, observe all traffic
laws, and accelerate through the gears several times
briskly.
(3) Remove all spark plugs from engine. As spark
plugs are being removed, check electrodes for abnor-
mal firing indicators fouled, hot, oily, etc. Record cyl-
inder number of spark plug for future reference.(4) Remove the Auto Shutdown (ASD) relay from
the PDC.
(5) Be sure throttle blade is fully open during the
compression check.
(6) Insert compression gauge adaptor Special Tool
8116 or the equivalent, into the #1 spark plug hole in
cylinder head. Connect the 0±500 psi (Blue) pressure
transducer (Special Tool CH7059) with cable adap-
tors to the DRBIIIt. For Special Tool identification,
(Refer to 9 - ENGINE - SPECIAL TOOLS).
(7) Crank engine until maximum pressure is
reached on gauge. Record this pressure as #1 cylin-
der pressure.
(8) Repeat the previous step for all remaining cyl-
inders.
(9) Compression should not be less than 689 kPa
(100 psi) and not vary more than 25 percent from cyl-
inder to cylinder.
(10) If one or more cylinders have abnormally low
compression pressures, repeat the compression test.
(11) If the same cylinder or cylinders repeat an
abnormally low reading on the second compression
test, it could indicate the existence of a problem in
the cylinder in question.The recommended com-
pression pressures are to be used only as a
guide to diagnosing engine problems. An engine
should not be disassembled to determine the
cause of low compression unless some malfunc-
tion is present.
DIAGNOSIS AND TESTING - CYLINDER
COMBUSTION PRESSURE LEAKAGE TEST
The combustion pressure leakage test provides an
accurate means for determining engine condition.
Combustion pressure leakage testing will detect:
²Exhaust and intake valve leaks (improper seat-
ing).
²Leaks between adjacent cylinders or into water
jacket.
²Any causes for combustion/compression pressure
loss.
WARNING: DO NOT REMOVE THE PRESSURE CAP
WITH THE SYSTEM HOT AND UNDER PRESSURE
BECAUSE SERIOUS BURNS FROM COOLANT CAN
OCCUR.
Check the coolant level and fill as required. DO
NOT install the pressure cap.
Start and operate the engine until it attains nor-
mal operating temperature, then turn the engine
OFF.
Clean spark plug recesses with compressed air.
Remove the spark plugs.
Remove the oil filler cap.
Remove the air cleaner.
RSENGINE 2.4L9-9
ENGINE 2.4L (Continued)
ProCarManuals.com