Section 4
TROUBLESHOOTING
CHARTS
E. CODE 36- OIL PRESSURE SENSOR (OPS) SIGNAL VOLTAGE LOW
STEP/SEQUENCE
36-8
Check for Open +5
Volt Line
l Turnignition off.
l Disconnect
the engine harness
connector at the ECM.
l Install a jumper wire between
sockets A and C of the OPS
harness connector.
l Read resistance between sockets
W1 and Y2 on the engine harness
connector.
36-9 Check for Short
•Remove
jumper wire.
l Read resistance between sockets
A and C of the OPS harness
connector.
36-10 Check for Short to
Battery +
l Remove both fuses to the
ECM.
l Disconnect the vehicle harness
and 6-way power harness
connectors at the ECM.
l Read resistance
between
socket
P2 of the engine harness
connector and socket B3 of the
vehicle harness connector.
l Also read resistance between
socket P2 on the engine harness
connector and the following
sockets on the 6-way power
harness connector: A, B, E and F.
Less than or
equal to 5 ohms.
Greater than
5 ohms or open.
Less than or
equal to 10,000 ohms.
Greater than
10,000 ohms or open.
All readings are
greater than 10,000 ohms
or open.
Any reading is
less than or equal to
10,000 ohms.
TM9-2320-363-20-1
(Cont’d.)
WHAT TO DO NEXT
Go
to 36-9.
The engine
+5 Volt line (ckt
#416) is open.
Contact Direct Support.
The
engine
+5 Volt line (ckt
#416) is shorted to the return
line (ckt #452). Contact Direct
support.
Go
to 36-12.
Go
to 36-12.
A short exists between the
sockets where less than 10,000
ohms resistance was read.
Repair short, page 3-2, and
reinsert fuses. Then go to 36-30.
3-273
