Jeep J-10 Series 1982 Technical & Service Manual page 451

FUEL SYSTEMS 1J-137
DIAGNOSTIC TEST 11
SOLE-VAC IDLE SPEED RELAY TEST
i
DISCONNECT IDLE SPEED RELAY CONNECTOR AND START ENGINE. DETERMINE IF
BATTERY VOLTAGE IS APPLIED ACROSS PINS 85 AND 86 OF RELAY CONNECTOR DURING
THE FIRST 60 SECONDS OF OPERATION.
NO
DETERMINE IF VOLTAGE IS
APPLIED ACROSS PIN 46
AND ENGINE GROUND.
NO
REPAIR VOLTAGE SUPPLY
MALFUNCTION AND
RETEST.
YES
DISCONNECT MCU
HARNESS CONNECTOR
AND TEST CONTINUITY
BETWEEN PIN 85 AND MCU
CONNECTOR PIN 10.
YES
YES
DETERMINE IF VOLTAGE IS
APPLIED ACROSS PIN 87
AND ENGINE GROUND.
NO
REPAIR VOLTAGE SUPPLY
MALFUNCTION AND
RETEST.
TEST CONTINUITY
BETWEEN PIN 30 AT RELAY
AND SOLE-VAC SOLENOID
CONNECTOR.
REPAIR OPEN CIRCUIT AND
RETEST.
REPLACE IDLE SPEED
RELAY AND RETEST.
REPAIR OPEN CIRCUIT AND
RETEST.
REPLACE MCU AND
RETEST.
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