Test Step 2. Check for Normal Operation of the Change Oil Lamp

169

TM 9-2320-312-24-2

Troubleshooting Section

Test Step 3. Test the Change Oil Lamp

Expected Result:

Circuit.

All connectors, pins, and sockets should be

completely coupled and/or inserted and the harness

and wiring should be free of corrosion, abrasion

or pinch points.

Results:

OK Proceed to Test Step 2.

Not OK

Repair: Repair the connectors or wiring and/or

replace the connectors or wiring. Ensure that all

of the seals are properly in place and ensure that

the connectors are completely coupled.

Verify that the repair eliminates the problem.

STOP.

Test Step 2. Check for Normal Operation

of the Change Oil Lamp.

g00836182

Illustration 43

P1 Connector

A. Monitor the change oil lamp. Turn the ignition

key switch to the ON position, while the engine

A. Turn the ignition key switch to the OFF position.

is off. The lamp should turn on for five seconds.

Then, the lamp should turn off.

B. Fabricate a jumper wire 100 mm (4 inch) long.

Crimp a Deutsch pin to both ends of the wires.

Expected Result:

C. Disconnect vehicle harness connector P1 from

The change oil lamp turns on and the change oil

the ECM.

lamp turns off per the description above.

D. Insert the jumper into terminal 30 of connector

Results:

P1.

Yes The change oil lamp is operating normally.

E. Connect the other end of the jumper wire to

STOP.

terminal 65 (-battery) of connector P1.

No The lamp does not turn on. Proceed to Test

F. Turn the ignition key switch to the ON position.

Step 3.

G. While the lamp is being watched, insert the

jumper wire and remove the jumper wire.

Expected Result:

Result 1 The change oil lamp turns on while the

jumper is connected to both sockets. Also, the

change oil lamp turns off when the jumper is

removed from one of the sockets.

Result 2 The change oil lamp does not turn on

while the jumper is connected to both sockets.

Result 3 The change oil lamp will stay on while the

ECM vehicle harness connector is disconnected.

Results:

Result 1 The change oil lamp is functioning

properly. Proceed to Test Step 4.