FixVault

KOER Code/Test Menu

WARNING: This page is about a different car, the 1989 Mercury Grand Marquis, 1989 Lincoln Town Car, 1989 Lincoln Mark VII, 1989 Ford Mustang, and 1989 Ford LTD Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
KOER SELF-TEST - CIRCUIT TEST & STEP MENU (5.0L)

Code No. Go To: Circuit Test No. (Step No.)
12 D5  (1)
13 D5  (13)
16 D5  (1)
18 D13  (1)
21 B5  (1)
22 (SEFI) B6  (7)
22 (MA SEFI) B6  (1)
23 B8  (1)
24 B2  (1)
26 (MA SEFI) B3  (1)
31 B11  (1)
32 B11  (15)
33 B11  (17)
34 B11  (23)
35 B11  (5)
41 C1  (10)
42 (SEFI) C1  (22)
42 (MA SEFI) C1  (1)
44 D3  (1)
45 D3  (1)
46 (SEFI) D3  (1)
56 (MA SEFI) B3  (10)
66 (MA SEFI) B3  (4)
74 (SEFI) B14  (1)
75 (SEFI) B14  (4)
77 (MA SEFI) D10  (1)
91 (SEFI) C1  (10)
91 (MA SEFI) C1  (1)
92 (SEFI) C1  (22)
92 (MA SEFI) C1  (1)
94 D3  (1)
98 (1)
(1) If Code 98 is displayed, go back and perform KEY ON/ENGINE OFF (KOEO) SELF-TEST and obtain a Code 11 for KEY ON/ENGINE OFF SELF-TEST portion QUICK TEST.