Code 77 Displayed: System Failed to Recognize WOT Test

Rerun KOER Self-Test as follows:

• Start engine
• Activate KOER Self-Test
• Observe ID Code "2" (Code "0" with STAR tester)
• Observe Dynamic Response Code "1" (Code "0" with STAR tester)
• Perform brief WOT
• Testing is complete, KOER code output begins

If Code 77 is still displayed, replace ECA and rerun QUICK TEST. If Code 77 is no longer present, vehicle has passed Dynamic Response test, service other codes as necessary.