ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5E-8790-823225--1 1096
Discrete Input Circuit Check
(2 of 2)
YES
NO
DISCONNECT ECM J1 CONNECTOR FROM ECM. CHECK
FOR CONTINUITY BETWEEN J1-6 AND TAN/BLU WIRE
FROM OIL PRESSURE SWITCH
REPLACE ECM
AND RETEST.
REPAIR SHORT
IN CIRCUIT.
NO
DISCRETE INPUT CIRCUIT
FUNCTIONING PROPERLY.
REPLACE FAULTY
SWITCH IN CIRCUIT.
DISCONNECT TAN/BLU WIRE FROM OIL PRESSURE SWITCH. START ENGINE, THERE SHOULD BE
RESISTANCE (NO CONTINUITY) FROM OIL PRESSURE SWITCH AND GROUND (ENGINE BLOCK).
ENGINE OFF, IGNITION ON, CHECK RESISTANCE FROM OIL PRESSURE SWITCH AND GROUND
(ENGINE BLOCK). RESISTANCE SHOULD BE NEAR ZERO (CONTINUITY CIRCUIT).
YES
DISCONNECT IN-LINE HARNESS AND CHECK CONTINUITY ON TAN/BLU
WIRE FROM OIL PRESSURE SWITCH TO IN-LINE HARNESS CONNECTOR
YES
NO
CHECK CONTINUITY ON TAN/BLU WIRE FROM IN-LINE HARNESS
CONNECTOR TO J1-6 TERMINAL ON ECM CONNECTOR
YES
REPAIR SHORT
IN CIRCUIT.
NO
YES
NO
DISCONNECT ECM J1 CONNECTOR FROM ECM. CHECK
FOR CONTINUITY BETWEEN J1-6 AND TAN/BLU WIRE
FROM OIL LEVEL SWITCH
REPLACE ECM
AND RETEST.
REPAIR SHORT
IN CIRCUIT.
NO
DISCRETE INPUT CIRCUIT
FUNCTIONING PROPERLY.
REPLACE GEAR
LUBE BOTTLE.
DISCONNECT TAN/BLU WIRE FROM I/O OIL LEVEL SWITCH. START ENGINE, CHECK RESISTANCE
FROM TAN/BLU WIRE AND BLK GROUND WIRE. RESISTANCE SHOULD BE NEAR ZERO.
YES
DISCONNECT IN-LINE HARNESS AND CHECK CONTINUITY ON TAN/BLU
WIRE FROM OIL LEVEL SWITCH TO IN-LINE HARNESS CONNECTOR.
YES
NO
CHECK CONTINUITY ON TAN/BLU WIRE FROM IN-LINE HARNESS
CONNECTOR TO J1-6 TERMINAL ON ECM CONNECTOR.
YES
REPAIR SHORT
IN CIRCUIT.
NO
I/O LEVEL SWITCH (GEAR LUBE MONITOR)
OIL PRESSURE SWITCH
REFER TO REPAIR PORTION OF THIS SECTION FOR TESTING OF TRANSMISSION FLUID TEMPERATURE SWITCH.
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