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Home >> Ford >> 1990 >> Bronco 4.9 Y, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Quick Test >> Step 8.0 Continuous Code-To-Test Chart

Step 8.0 Continuous Code-To-Test Chart

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Starting with the lowest Continuous Memory code, use the chart to locate the proper pinpoint test for the applicable engine. All tests are in the format "Test/Step". For example, if you see "DA90", proceed to pinpoint test DA (TEST DA - TEMPERATURE SENSOR TEST (ACT, ECT & VAT)) and start at step #90. Be sure to read the Introduction proceeding step #1 for important supplementary information and resources.

The chart is hyperlinked for your convenience. Each link jumps to the start of the test (introduction area) proceeding step #1, not to the specified step number itself.

Since just one hyperlink can exist on a line, only the left-most pinpoint test identifier is linked. If another engine uses the same test but is not linked, use the same left-most hyperlink.

After service, rerun the Quick Test to ensure that service was effective.

To find out the meaning of any code, see the CODE DEFINITION TABLES .

CONTINUOUS MEMORY (KOEO) CODE-TO-TEST CHART: TRUCK (1)

KOEO Cont Mem Code 2.3LVIN [A] 2.9LVIN [T] Fed. 2.9LVIN [T] Cal. 3.0LVIN [U] 4.0LVIN [X] 4.9LVIN [Y] 5.0LVIN [N] (2) 5.8LVIN [H] 7.3LVIN [M] 7.5LVIN [G]
14 N1 N1 N1 N1 (3) N1 N1 N1 DJ1 N1
15 QB1 QB1 QB1 QB1 QB1 QB1 QB1 QB1 QB1 QB1
18 (4) N4 N4 N4 N3 N4 N4 N4 -- N4
19 (4) -- -- -- -- -- -- -- -- --
22 DF90 DF90 DF90 DF90 DF90 DF90 DF90 DF90 DF90 DF90
28 N3 -- -- -- -- -- -- -- -- --
29 DP1 DP1 DP1 DP1 DP1 DP1 DP1 DP1 DP1 DP1
31 DN91 -- -- -- -- DN91 DN91 DN91 -- DN91
32 DN90 -- -- -- -- DN90 DN90 DN90 -- DN90
33 DN95 -- -- -- -- DN95 DN95 DN95 -- DN95
34 DN98 -- -- -- -- DN98 DN98 DN98 -- DN98
35 DN93 -- -- -- -- DN93 DN93 DN93 -- DN93
41 H29 H29 H29 H29 H29 H29 H29 H29 -- H29
45 -- -- -- -- N15 -- -- -- -- --
48 N3 -- -- -- -- -- -- -- -- --
49 -- -- -- -- -- TC90 TC90 TC90 TC90 TC90
51 DA90 DA90 DA90 DA90 DA90 DA90 DA90 DA90 -- DA90
53 DH90 DH90 DH90 DH90 DH90 DH90 DH90 DH90 DQ90 DH90
54 DA90 DA90 DA90 DA90 DA90 DA90 DA90 DA90 -- DA90
56 DC20 -- DC20 -- DC20 TC90 TC90 TC90 TC90 TC90
59 -- -- -- -- -- TC90 TC90 TC90 TC90 TC90
61 DA90 DA90 DA90 DA90 DA90 DA90 DA90 DA90 -- DA90
62 -- -- -- -- -- TC90 TC90 TC90 TC90 TC90
63 DH94 DH94 DH94 DH94 DH94 DH94 DH94 DH94 DQ94 DH94
64 DA90 DA90 DA90 DA90 DA90 DA90 DA90 DA90 -- DA90
66 DC10 -- DC10 -- DC10 TC90 TC90 TC90 TC90 TC90
67 -- -- FA1 -- FA1 TC90 TC90 TC90 TC90 TC90
69 -- -- -- -- -- TC90 TC90 TC90 TC90 TC90
87 J95 J95 J95 J95 J95 J95 J95 J95 -- J95
88 N20 -- -- -- -- -- -- -- -- --
95 J90 J90 J90 J90 J90 J90 J90 J90 -- J90
96 J93 J93 J93 J93 J93 J93 J93 J93 -- J93
99 -- -- -- -- -- TC90 TC90 TC90 TC90 TC90
(1) If no codes or codes not listed, go to test QA1. "--" means code does not apply for this engine. "Fed." means Federal, "Cal." means California.
(2) 5.0L information has been updated to reflect Ford TSB 89-25A-14.
(3) Tests are in another article in this section. See 4.0L V6 VIN [X]: IGNITION PINPOINT TESTS in the SYSTEM/COMPONENT TESTS article.
(4) Tests are in another article in this section. See 2.3L 4-CYL VIN [A]: IGNITION PINPOINT TESTS in SYSTEM/COMPONENT TESTS article.