KOEO & KOER SELF-TEST Codes
PCM outputs codes one digit at a time. Record codes in order received. These codes indicate current faults in system and should be serviced in order of appearance. Use SERVICE CODE-TO-TEST MENUS to find correct CIRCUIT TEST.
If using VOM, pay careful attention to length of pauses in order to read codes correctly. A 1/2-second pause occurs between number of sweeps in a digit. A 2-second pause occurs between digits in a code. A 4-second pause occurs between each code. KOEO codes are separated from Continuous Memory codes by a 6-second delay, a 1/2-second sweep (separator) and another 6-second delay. See Fig. 1.
If using MIL/CHECK ENGINE light, service codes are displayed as flashes. On Continental, message center may be used to display codes. See Fig. 2.
Scan tester, if used, will count pulses and display them as a digital code. STAR Series Tester will add a zero (0) to single-digit Separator Code (10) and Dynamic Response Code (10). Dynamic Response Code is displayed in KOER SELF-TEST. See Fig. 1.
Thursday, July 22nd, 2010 AT 4:48 PM