Symptom Checks

Perform the following:

• If electric cooling fan runs continuously, perform Key On Engine Off (KOEO) Self-Test. See step 14) of DIAGNOSTIC SUB-ROUTINES. If continuous memory Diagnostic Trouble Code (11/111-10-11/111) was NOT displayed during KOEO Self-Test, perform appropriate CIRCUIT TEST in TESTS W/CODES article in the ENGINE PERFORMANCE section.
• Check cooling system operation.
• Check temperature gauge and sending unit.