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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 the
No. 4 wire terminal (+) and body
ground {-).
Rcp.ir opon in tho BLK/YEL wiro
betwsen tha undor.dash tu3a/
rehy box rnd the undor.hood
fw6/i6lry box.
Turn tho ignition switch OFF, and
reinstall the compressor clutch
Make suro the !y'C and heater fan
switches are OFF.
Turn the ignition switch ON {l1).
U s i n g a * B a c k p r o b e S e t ( T / N
07SAZ - 001000A), measure th€
voltage between the No. 17 termi-
nal oI the ECM connocror A (32P)
and body ground wirh the ECM
connectors connected.
R.pair op.n in tho BLK/R€O wiro
bgtweon thg undor-hood fu!a/
relly box 6nd th. ECM.
U s i n g a * B a c k p r o b e S e t ( T / N
07SM - 001000A), moasure the
voltage betwe€n the No. 5 termi-
nal of the ECM connector C (31P)
and body ground with the ECM
connectors connected.
Ropair op6n in tho BLU/RED wirc
bctwccn tho A/C diodc rnd the
ECM,
Subiiituto . known-good ECM
rnd rochock. lt symptom/indicr-
tion 90o3 away, .6placc the origi-
n.l ECM.
WIRE SIOE OF FEMALE TERMINALS
22-15
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Troubleshooting
