KOER Self-Test

Ensure engine is warmed to normal operating temperature. Turn ignition switch to OFF position. Ensure test equipment is properly attached. Program tester using the following steps:

• Select vehicle and engine selection menu.
• Select year, engine, model and any additional information requested by tester.
• Select DIAGNOSTIC DATA LINK.
• Select PCM - POWERTRAIN CTRL MODULE.
• Select DIAGNOSTIC TEST MODE.
• Select KOER ON-DEMAND SELF-TEST.
• Start engine and allow to idle.
• Follow operating instructions from tester menu.
• Perform BRAKE ON/OFF (BOO) TEST and TRANSMISSION CONTROL SWITCH (TCS) TEST (if equipped).