Test Step 2. Check for Normal Operation of the Lamp

173

TM 9-2320-312-24-2

Troubleshooting Section

Expected Result:

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.

STOP.

Test Step 2. Check for Normal Operation

of the Lamp.

A. Monitor the check engine lamp.

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

The lamp should illuminate for five seconds.

Then, the lamp should turn off.

b. The lamp will continue flashing if there is an

active diagnostic code. If there is an active

diagnostic code, connect ET in order to read

the active diagnostic code. Troubleshoot the

problem.

Expected Result:

The check engine lamp turns on and the check

engine lamp turns off per the above description.

Results:

Yes The check engine lamp appears to

operating correctly at this time. STOP.

No Proceed to test step 3.