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HOMESERVICE MANUALSFORD1985BRONCO 5.8 G, STANDARD, TODREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 32 (5.0L/5.8L EEC IV TESTING)QUICK TESTCODE/TEST MENU (KOER)
1985 Ford Bronco 5.8 G, Standard, TOD

Code/Test Menu (KOER)

1985 Ford Bronco 5.8 G, Standard, TODSECTION Code/Test Menu (KOER)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1984 Ford RV Cutaway, 1984 Ford Pickup, 1984 Ford Econoline, 1984 Ford Cutaway, and 1984 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
KEY ON-ENGINE RUNNING (KOER) SELF-TEST RESULTS

On Demand Codes Proceed to Test
11 (1)CONTINUOUS TEST 
Any See Code No. Below
None Repeat self-test; then TEST D 
12 TEST J 
16 TEST I  , step 15)
21 TEST E 
22 TEST F 
23 TEST G 
31 TEST H 
32, 33, 34 TEST H  , step 9)
35 TEST H  , step 19)
41 TEST I 
42 TEST I  , step 14)
43 TEST J  , step 22)
44, 45, 46 TEST M 
72 TEST F  , step 10)
73 TEST G  , step 14)
77 TEST N 
(1) If drive problem still exists, go to TEST O  .

Connect jumper wire or STAR tester to activate test. This test will display an Engine ID code, a Dynamic Response code and an On Demand Service code. After a Dynamic Response code (single digit) is received, quickly press and release accelerator once only.

Deactivate the self-test. Start and run engine at more than 2000 RPM for 2 minutes. Turn engine off and wait 10 seconds. Activate self-test. Start engine. Test will proceed with Engine ID code, Dynamic Response code and Key On-Engine Running On Demand Service codes. If a 10 or 1 pulse occurs during Dynamic Response code, open throttle wide open momentarily. Record codes and proceed as follows:

NOTE: If engine stalls while testing, proceed to TEST D  , step 10).
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.