Field Service Mode Check

Malfunction Indicator Light (MIL) indicates operational mode of engine if DLC is grounded while engine is running. Light response confirms proper fuel system operation and verifies closed loop operation. Clear codes and perform this test after any repair is completed. Field service mode check can be found by proceeding to FIELD SERVICE MODE CHECK in appropriate BASIC TESTING article in this section. See below.

• BASIC TESTING - GASOLINE (for "C" & "K" Series)
• BASIC TESTING - GASOLINE (For "G" & "P" Series)