COMPRESSOR CLUTCH RELAY 'P SOCIGT
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ECM CONNECTOR A (32PI
BLK/f,ED
WIRE SIDE OF FEMALE TERMINALS
ECM CONNECTOR C {31P}
BLU/RED
Connect the backprobe adapters to the stacking patch cords, and connect the cords to a mul-timeter. Using the wire insulation as a guide lor the contoured tip oI the backprobe adapter,gently slide the tip into the connector trom the wire side until it comes in contact with the ter-minalend ofthe wire {see section l1).
From page 22-14
*How to use the backprobe sets
Turn the ignition switch ON {11}.
i/leasure the voltage between theNo. 4 wire terminal (+) and bodyground {-).
Rcp.ir opon in tho BLK/YEL wirobetwsen tha undor.dash tu3a/rehy box rnd the undor.hoodfw6/i6lry box.
Turn tho ignition switch OFF, andreinstall the compressor clutch
Make suro the !y'C and heater fanswitches are OFF.
Turn the ignition switch ON {l1).
Using a *Backprobe Set (T/N
07SAZ - 001000A), measure th€voltage between the No. 17 termi-nal oI the ECM connocror A (32P)
and body ground wirh the ECMconnectors connected.
R.pair op.n in tho BLK/R€O wirobgtweon thg undor-hood fu!a/relly box 6nd th. ECM.
Using a *Backprobe Set (T/N
07SM - 001000A), moasure thevoltage betwe€n the No. 5 termi-nal of the ECM connector C (31P)
and body ground with the ECMconnectors connected.
Ropair op6n in tho BLU/RED wircbctwccn tho A/C diodc rnd theECM,
Subiiituto . known-good ECMrnd rochock. lt symptom/indicr-tion 90o3 away, .6placc the origi-n.l ECM.
WIRE SIOE OF FEMALE TERMINALS
22-15
J
Electrical
Speciaf Toofs ..........................23-2
Troubleshooting
Tips 8nd Precautions .......................,..,.,.,.,.,......,..., 23-3
Five-step Troubleshooting ............,......,.,.,...,..,....., 23-5
Schsmatic Svmbols ...............23-6
Wire Color Code3 .. ................. 23-6
Relay and Control Unit Locations
Engine Compartment ......,.,.................,.,.,.,.,.,,,, 23-7
Dashboard and Door .........,...........,.....,.,....,.,.... 23-8
Dashboard and Floor ......................................... 23-10
Ouarter Pan€f .,,.,...,.,..,...,,,23-12
Connector ldontification and WireHarness Routing ......,.,......23-'13
Index to Circuits and Systems
Airbag
* Integrated Control Unit .....,.,.,.....23-152* Interlock Sytem .,...,.,...........,. 23.146
Lights, Exterior
Eack-up LighB ..................23.187
Brake Ligh$ ......................23-190*Daytime Running Lights (Canada) ................... 23"164
Front Parking Lights .......................................... 23-173
Front Side Marker Lights .................................. 23-173
Front Turn Signal Lights ..................-.......,...,.,. 23-173* Hazard Warning Lights ....................,........,....... 23-192
Headlights.....23-169
23-253 powerDistribution..................... 23-5/r
Air Conditioning.....,....... Soction 21
Alternator ..........,................... 23.99
iCigarette Lighter .........23-212
*Cruise Control
Distributor
'.'.,.'.'.,.'...,,,,.,''.'.,.',.'''.' 23.277
.............................. 23.88
................... 23-90lgnition Timing ......
Indicator Lights
Key-in Reminder System
Maintenance Reminder System*Seat Belt R€mindor System .,...........................* Side Marker/Turn Signal/HazardFlashcr Svstem .................23-192
Spark Plugs ............................23-98
Starting System .....................23-74* Stereo Sound System ...,......,..........,...,......,.,.,.,..,., 23-196
Supplemental Restraint System (SRS) ................ 23-277
Vshicle Speed Sensor (VSS) ................................. 23.130r Wiper/Washer System .........................................., 23-265
*Read SRS precautions on Psge 23-283 before working
in those areas,
23-154
23.136
23"133
Troubleshooting
Schematic Symbolsym
BATTEBY
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GROUNDGround terminal Componenr ground
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FUSE
COIL, SOLENOID
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CIGARETTE LIGHTER
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RESISTOR
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T
VARIABLE RESISTOR
TD
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THERMISTOR
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IGNITION SWITCH
1-\-T- l.--
BULB
A
Y
HEATER
-h
t=l
tr
MOTOR
0
PUMP
A
Y
CIRCUIT EREAKER
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t
Y
HORN
+
DIODE
+
SPEAKER, BUZZER
D
Mast
Y
ANTtiNNA
T,
TRANSISTOR (Tr)
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Wire Color Codes
The following abbreviations are used to identify wire
colors in the circuit schematics:
WHT ............ White
YE1 .............. Yellow
81K .............. Black
B1U .............. Blue
GRN ............. Green
RED .............. Red
ORN ............. Orange
PNK .............. Pink
BRN .............. Brown
GRY ............. Gray
PUR .............. Purple
LT BLU ......... Light Blue
LT GRN ......... Light Green
The wire insulation has one color or one color with
another color stripe.'The second color is the stripe.
WHT/BLK
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BELAY lln noNormally open relayrmal position)
Normally closed relay
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CONDENSER
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SWITCH {ln nrNormally openswitch
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)rmal position)Normally closed
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LIGHT EMITTINGDIODE (LEDI
AJ"
YT
CONNE
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CTIONOutput
J,
CONNECTOR
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REED SWITCH
.K
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Y