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post #1 of 6 (permalink) Old 11-13-2009, 01:34 PM Thread Starter
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Self test links

So not to come off like an azz on my first post, but why isn't the "how to do a self test" thread that I've seen referenced in about 100 posts while searching, a sticky at the top of the tech threads?

Problem is a 94 bronco grounding out somewhere and draining the battery, tired of chasing the short, and I wanted to hook my AE to it see which component was throwing a code. Figured that'd make finding the short easier.

But, it's a 94... So no dice... I don't have anything compatible.

But, I was thrilled to find out I could to a "self test" with a paper clip or other wire, and count flashes or something... My thrill has died though, I've spent about 45 minutes searching and found, a whole bunch of mods and techs tellin people to search the "self test" thread...

It's non exsitant through the search function...

Looks like you got a good group of people here though, so somebody please post a link!

I hate electronic problems...

Tom
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post #2 of 6 (permalink) Old 11-13-2009, 01:50 PM
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Tech Bulletin #25: E4OD Electrical Problems That bulletin addresses an issue with short battery life, failure to display any codes and possibility of short solenoid pack life in your transmission.

Last edited by Saltlife; 03-18-2014 at 05:13 PM. Reason: clean up
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post #3 of 6 (permalink) Old 11-24-2009, 11:02 AM
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Steve had it all in one big post here too

See my partially recovered Bronco web site ...Will need to clean up dead links & add many more new links some day. Thanks to Mr. Schwim!
THANKS to ALL WHO SERVE!

Last edited by Saltlife; 03-18-2014 at 05:13 PM. Reason: clean up
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post #4 of 6 (permalink) Old 05-26-2012, 08:03 AM
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yo,
Self Test for Diagnostic Trouble Codes (DTC)s by my pal, BroncoJoe19
The engine temperature must be greater than 50 F for the Key On Engine Off (KOEO) Self-Test and greater than 180 F for the Key On Engine Running (KOER) Self-Test.
Run it around to heat the engine up and shift thru all gears incl Reverse. Then turn off all accessories/lights, etc.

Make sure A/C is off and transmission is in Park (automatic) or in Neutral for a Manual & release clutch.

Do Key On Engine Off (KOEO) portion first.

Look Codes up in my broncolinks.com site using the new Search function.

And Post Code(s) found in your thread according to:
KOEO
&
KOER

==========

See my partially recovered Bronco web site ...Will need to clean up dead links & add many more new links some day. Thanks to Mr. Schwim!
THANKS to ALL WHO SERVE!

Last edited by Saltlife; 03-18-2014 at 05:13 PM.
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post #5 of 6 (permalink) Old 10-10-2013, 02:25 PM
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yo Fyrmn,
Here are some code pulling tips;


This is a cheap & easy upgrade to any EEC-IV vehicle: a simple jumper wire twisted into the harness behind the DLC makes pulling codes or triggering the fuel pump relay quick & convenient. Scratch the terminal identifications into the plastic connector shells.
by Steve


Scan Tool Won’t Initiate Self-Test Due to Poor Grounds, Corroded Wiring, etc.; read more on how to Ground the STI & Proceed w/ Test; miesk5 Note; Steve83 advises; "...If the CEL is burned out, connect CEL to a 12V test light, and the light's other terminal to a 12V source on the same vehicle..."
Source: by Jeremy M (Big '92, jermil01) at SuperMotors.net

the EEC (computer) ground comes from two main sources, one is the body/frame ground (G104) and the other is the small black wire that goes directly to the negative terminal of the battery (G101/102). G104 goes to EEC Pin #20 and the TFI ICM. G101/102 goes to EEC Pin #40 & 60. This a direct ground to the battery(-) post and the connection on the radiator support is frequently the cause of problems. It can also corrode developing a poor connection at the negative battery cable connection at the battery post.

I lost ID of author.
NO CODES Troubleshooting by Ryan M (Fireguy50) at http://oldfuelinjection.com/?p=44


For 1992 MY; Self-Test Unable to read codes (solid tone only) TSB 92-22-5 1992 BRONCO, F SUPER DUTY, F-150-350 SERIES
ISSUE:
The transmission control switch wiring may be misrouted causing a short in the steering column and a blown # 17 fuse. The following symptoms may be associated with this concern.
Early shifts
Loss of power
Poor acceleration
3-4 shift cycling
Transmission control light cycling ON/OFF or inoperative
Transmission control switch inoperative
Rear Anti-Lock Brake System (RABS) electronics (dash lights on, etc.) inoperative
Loss of instrumentation (tach, fuel gauge, etc.)
Unable to read Self-Test codes (solid tone only)
ACTION:
Inspect the transmission control switch wiring for damage and repair or replace as necessary. Refer to the following procedure for service details.
1. Remove the steering column cover. Refer to the 1992 Bronco/F-Series Service Manual, Section 11-04B, for the removal procedure.
2. Examine the transmission control switch wiring for damage, Figure 1. (I don't have this Figure)
3. Repair or replace the wiring as necessary.
4. Install the steering column cover. Refer to the 1992 Bronco/F-Series Service Manual, Section 11-04B, for the installation procedure.
CAUTION:
DURING REASSEMBLY, ROUTE WIRING AWAY FROM ATTACHING SCREW SO AS NOT TO PINCH OR DAMAGE WIRE.
OTHER APPLICABLE ARTICLES: NONE

See my partially recovered Bronco web site ...Will need to clean up dead links & add many more new links some day. Thanks to Mr. Schwim!
THANKS to ALL WHO SERVE!
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post #6 of 6 (permalink) Old 03-18-2014, 05:21 PM
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Since oldfuelinjection.com is down for the count. I wanted to update this thread with the self test pages from that site.


I pulled them off the site (if owners want me to delete this I can).

How To Run a Self-Test
Don’t worry if the Check Engine Light is not on, the computer will store lesser important codes without flashing lights in your face. First you need to find the self-test plugs to read codes from the EEC. There are 2 plugs to find. One is triangular and has 6 pins; it is called the Self-Test plug. The other is a smaller single pin plug; it is called the Self-Test Input (STI). These are what the plugs look like. The self-test plugs are located along the driver�s side fender by the firewall on 1986-95 Mustangs.





The self-test plugs are located along the driver�s side fender behind the air filter box on 1987-95 EFI trucks.



The self-test plugs were mounted on the passenger side fender on 1985-86 EFI trucks.


How to Prepare for the Self-Test
To check for codes without buying a code reader is simple. If your EEC is wired correctly, the engine light works, and there are not any electrical faults in the vehicle you can get the codes out of your EEC.



1. Turn key to OFF.
2. Get a length of wire that can connect the STI to the negative battery terminal or body ground.
3. Ground the Self-Test Input.
4. Get some paper and a pen.
5. Get comfortable in the drivers seat.
6. Try to keep your self from getting distracted from here on.
7. Turn key to RUN.
8. You will hear some relays engage and the fuel pumps prime the system. This is the EEC beginning the test.
9. When the fuel pumps stop be ready to count!
If you are a lost soul that does not have a working engine light, or did not install a light into your dash don�t fret. You can still get the codes. You still need that wire to ground out the STI. Now you will need one of the following tools; digital volt meter, analog volt meter, test light, or you can hook up any other 12 volt light that does not draw more than 0.5 watts max.
1. Turn key to OFF.
2. Get a length of wire that can connect the STI to the negative battery terminal or body ground.
3. Ground the Self-Test Input.
4. Attach one side of the test device to the Self-Test Output (STO).
5. Attach the other lead to the positive side of the battery.
a) If you are using a digital voltmeter you�ll want to use the continuity setting.
b) If you are using an analog voltmeter you�ll be counting the meter make sweeps.
c) If you are using a cheep light you�ll count like the rest of us.
6. Get some paper and a pen.
7. Get comfortable in the drivers seat.
8. Try to keep your self from getting distracted from here on.
9. Turn key to RUN.
10. You will hear some relays engage and the fuel pumps prime the system. This is the EEC beginning the test.
11. When the fuel pumps stop be ready to count!
How To Count “Check Engine” Light Blinks
When the “Check Engine” light blinks during the test you will get several different blinks, the separation time between blinks is used to indicate what information is being displayed.
Turn key to RUN.
You will hear some relays engage and the fuel pumps prime the system. This is the EEC beginning the test.
The fuel pumps will stop and the EEC will now begin giving codes.
You may catch a brief flickering of the light. This is a rapid code read that is used by the code readers you can purchase. Do not worry all those rapid flashes you just say flicker buy will now be given at a slower pace of �, 2, & 4 second pauses.
First digit of first KOEO code (1/2 second between blinks)
2 second pause
Second digit of first KOEO code (1/2 second between blinks)
4 second pause
Next KOEO code
Once all KOEO codes are read the EEC will repeat them
6 second pause
Single Separator Blink (this indicates the change from KOEO codes to CM codes)
6 second pause
Codes from Continues Memory (uses same 1/2, 2, and 4 second timing as KOEO codes and also repeats them)
If nothing has been recorded by the EEC since last battery disconnect you will see:
Blink – 2 sec – blink – 4 sec – blink – 2 sec – blink – 6 sec – blink – 6 sec – blink – 2 sec – blink – 4 sec – blink – 2 sec � blink



This translates into 11-11 current condition (KOEO) and 11-11 in the continues memory (CM); or SYSTEMPASS
This may seem hard to count; recommendation is to record codes with slashes, and to lump them all together. Sort them out into numerical codes later. Here is an example of this:

This would give you codes; 41, 83, 14 & 18. If you miss some of the codes or feel you are counting wrong continue to count the remaining codes for practice and to compare to the next code test. When finished simply turn the key to OFF wait 15 seconds then back to RUN. The codes will be presented again.


2 Digit Self-test Codes 11-32
Abbreviations:
KOEO = Key On Engine Off
CM = Continues Memory
KOER = Key On Engine Running
# KOEO CM KOER Code Definition
NC X X X No Codes

10 X Cylinder #1 Failed Cylinder Balance Test.
11 X X X System pass!
12 X Cannot control RPM during ER Self-Test high RPM check.
13 X Cannot control RPM during ER Self-Test low RPM check.
14 X Two or more successive erratic Profile Ignition Pickup (PIP) pulses occurred, resulting in a possible engine miss or stall.
15 X EEC permanent Read Only Memory (ROM) test failed.
X EEC battery powered Keep Alive Memory (KAM) test failed.
16 X IDM signal not received.
X RPM too low to perform HEGO test.
17 X RPM below Self-Test limit with Idle Air Control off.
18 X SPOUT circuit open or spark angle word failure.
X IDM circuit failure or SPOUT circuit grounded.
19 X Failure in EEC internal voltage.
X Cylinder Identification CID circuit failure.
X RPM erratic, dropped too low during test.
20 X Cylinder #2 Failed Cylinder Balance Test.
21 X X X ECT out of self test range 0.3 to 3.7 volts.
22 X X X MAP/BP sensor out of self test range.
23 X X Closed throttle TPS voltage higher or lower than expected.
24 X X X ACT sensor out of self test range 0.3 to 3.7 volts.
25 X Knock not sensed during dynamic test.
26 X MAF sensor was greater than 0.7 volts with engine off.
X MAF sensor was not between 0.2 and 1.5 volts with engine running.
X X TOT sensor out of self test range.
27 ?
28 X X VAT sensor out of self test range.
X Loss of IDM, right side.
29 X Insufficient input from vehicle speed sensor.
30 X Cylinder #3 Failed Cylinder Balance Test.
31 X X PFE or EVP circuit below minimum voltage of 0.24 volts.
X PFE or EVP circuit has intermittently failed below minimum voltage of 0.24 volts.
32 X X EVP circuit below minimum voltage of 0.24 volts.
X EVP circuit has intermittently failed below minimum voltage of 0.24 volts.
Two Digit Codes 33-58
# KOEO CM KOER Code Definition
33 X X EGR valve opening not detected.
34 X X PFE or EVP circuit above the closed limit of 0.67 volts.
X PFE or EVP circuit has intermittently failed above the closed limit of 0.67 volts.
35 X X PFE or EVP circuit above the maximum limit of 4.81 volts.
X PFE or EVP circuit has intermittently failed above the maximum limit of 4.81 volts.
39 X AXOD converter bypass clutch not applying properly.
40 X Cylinder #4 Failed Cylinder Balance Test.
41 X HEGO sensor circuit indicates system lean (right side).
X No HEGO switching detected always lean (right side).
42 X HEGO sensor circuit indicates system rich (right side).
X No HEGO switching detected always rich (right side).
43 X HEGO lean at Full Throttle.
44 X X Thermactor Air Injection system inoperative (Right side).
45 X DIS coil pack 3 circuit failure or coil 1 primary circuit failure.
X Thermactor secondary air is misdirected.
46 X DIS coil pack 1 circuit failure or coil 2 primary circuit failure.
X Thermactor air not bypassed during self test.
47 X 4WD switch closed.
X Measured air flow too low at base idle.
48 X Loss of IDM, left side.
X Measured air flow too high at base idle.
49 X SPOUT signal default to 10� BTDC.
X 1 – 2 shift error (E4OD).
50 X Cylinder #5 Failed Cylinder Balance Test.
51 X X ECT sensor signal is greater than the Self-Test maximum of 4.6 volts.
52 X X X Power steering pressure switch always open or closed.
53 X TPS circuit above maximum 4.5 volts.
X TPS circuit has intermittently failed above maximum 4.5 volts.
54 X X ACT s 5c7 ensor signal is greater than the Self-Test maximum of 4.6 volts.
55 X Keyed power input to processor is open.
56 X X MAF circuit above maximum voltage of 4.5volts.
X X TOT sensor output is greater than Self-Test maximum value of 4.8 volts.
57 X Octane adjust service pin in use / circuit grounded.
X AXOD Neutral pressure switch circuit failed open.
58 X X VAT indicated -40�F / circuit open.
KOEO = Key On Engine Off, CM = Continues Memory, KOER = Key On Engine Running
Two Digit Codes 59-74
# KOEO CM KOER Code Definition
59 X X Low speed fuel pump circuit failure.
X X 2 – 3 shift error (E4OD).
60 & fec nbsp; X Cylinder #6 Failed Cylinder Balance Test.
61 X ECT sensor is less than the Self-Test minimum of 0.2 volts.
X ECT sensor has intermittently failed below 0.2 volts.
62 X 4/3 or 3/2 pressure switch circuit failed open.
X Converter clutch error (E4OD).
63 X TPS circuit below minimum 0.6 volts.
X TPS circuit has intermittently failed below minimum 0.6 volts.
64 X ACT sensor is less than the Self-Test minimum of 0.2 volts.
X ACT sensor has intermittently failed below 0.2 volts.
65 X Overdrive OFF switch was not cycled during KOER test (user error).
66 X MAF sensor went below 0.4 volts during the last 80 warm-up cycles.
X X TOT sensor output was less than Self-Test minimum value of 0.15 volts.
67 X X Neutral safety circuit failure.
X A/C circuit was on during KOER Self-Test.
68 X Transmission recently overheated, or TOT sensor intermittently failed below 0.2 volts.
69 X 3 – 4 shift error.
70 X Cylinder #7 Failed Cylinder Balance Test.
71 X Software re-initialization detected or Cluster ControlAssembly circuit failed.
72 X Power interruption detected or Message Center Control Assembly circuit failed.
X Insufficient MAF/MAP change during Dynamic Response Test (user error).
73 X TPS senor did not exceed 25% rotation during Dynamic Response Test (user error).
74 X Brake On/Off switch not actuated during KOER test (user error).
KOEO = Key On Engine Off, CM = Continues Memory, KOER = Key On Engine Running

Two Digit Codes 75-99
# KOEO CM KOER Code Definition
75 X Brake On/Off switch failure always ON.
76 X Insufficient VAT change during Dynamic Response Test (user error).
77 X System failed 16e2 to recognize brief WOT during Dynamic Response Test (user error).
79 X A/C or defrost on during self test.
80 X Cylinder #8 Failed Cylinder Balance Test.
81 X Air management 2 circuit failure (AM2/TAD).
X MAP sensor vacuum was not greater than 2 in-Hg (7 kPa) during normal vehicle operation.
82 X Air management 1 circuit failure (AM1/TAB) .
83 X EGR Control solenoid circuit failure.
X High speed electro-drive fan circuit failure.
X X Low speed fuel pump relay circuit open.
84 X X EGR Vacuum Solenoid circuit failure.
85 X X Canister Purge Solenoid circuit failure.
86 X 3 � 4 Shift solenoid circuit failure.
X Adaptive fuel limit reached.
87 X Fuel pump primary circuit failure. When the FP relay was activated by the EEC, voltage was not detected on the control circuit.
X Voltage was not detected on Fuel Pump Monitor while the engine was running.
88 X Electro-drive fan circuit failure.
X Loss of dual plug input control.
89 X Converter clutch solenoid circuit failure.
90 X All cylinders passed Cylinder Balance Test.
91 X Shift solenoid 1 circuit failure (E4OD).
X No HEGO switching detected always lean (left side).
X HEGO sensor circuit indicates system lean (left side).
92 X Shift solenoid 2 circuit failure (E4OD).
X No HEGO switching detected always rich (left side).
X HEGO sensor circuit indicates system rich (left side).
93 X Coast clutch solenoid circuit failure (E4OD).
94 X Converter clutch solenoid circuit failure (E4OD).
X Thermactor Air Injection system inoperative (left side).
95 X X Fuel pump secondary circuit failure. The EEC senses infinite resistance to ground from the fuel pump on the Fuel Pump Monitor circuit.
96 X X Fuel pump secondary circuit failure. The EEC did not sense battery voltage on the Fuel Pump Monitor circuit.
97 X Overdrive cancel indicator light circuit failure (E4OD).
98 X X Electronic pressure control driver open in EEC (E4OD).
X Hard fault present.
99 X X Electronic pressure control circuit failure (E4OD).
X EEC system hasn�t learned to control idle.

3 Digit Self-test Codes 111-171
Abbreviations:
KOEO = Key On Engine Off
CM = Continues Memory
KOER = Key On Engine Running
# When 3-Digit Code Definitions
KOEO CM KOER
NC X X X No Codes

111 X X X System pass
112 X ACT sensor signal is less than the Self-Test minimum of 0.2 volts.
X ACT circuit has intermittently failed below minimum 0.2
volts.
113 X ACT sensor signal is greater than the Self-Test maximum of 4.6 volts.
X ACT circuit has intermittently failed above the maximum of 4.6 volts.
114 X X ACT out of self test range 0.3 to 3.7 volts.
116 X X ECT out of self test range 0.3 to 3.7 volts.
117 X ECT sensor signal is less than the Self-Test minimum of 0.2 volts.
X ECT circuit has intermittently failed below minimum 0.2 volts.
118 X ECT sensor signal is greater than the Self-Test maximum of 4.6 volts.
X ECT circuit has intermittently failed above the maximum of 4.6 volts.
121 X X Closed throttle TPS voltage higher or lower than expected.
X TP sensor was inconsistent with the MAF/MAP value in the last 80 drive cycles.
122 X TPS circuit below minimum 0.6 volts.
X TPS circuit has intermittently failed below minimum 0.6 volts.
123 X TP circuit above maximum 4.5 volts.
X TPS circuit has intermittently failed above maximum 4.5 volts.
124 X TP sensor was higher than expected with the MAF/MAP value in the last 80 drive cycles.
125 X TP sensor was lower than expected with the MAF/MAP value in the last 80 drive cycles.
126 X X X MAP/BP sensor out of self test range 1.4 to 1.6 volts.
128 X MAP sensor vacuum was not greater than 2 in-Hg (7 kPa) during normal vehicle operation.
129 X Insufficient MAF/MAP change during Dynamic Response Test.
136 X HEGO sensor circuit indicates system lean (left side)
137 X HEGO sensor circuit indicates system rich (left side)
139 X No HEGO sensor switching detected or disconnected (left side)
141 X HEGO sensor circuit indicates system lean (both sides)
144 X No HEGO sensor switching detected or disconnected (right side)
157 X MAF sensor went below 0.4 volts during the last 80 warm-up cycles.
158 X X MAF sensor went above 4.5 volts during the last 80 warm-up cycles.
159 X MAF signal was greater than 0.70 volt during KOEO.
X MAF signal was not between 0.20 and 1.50 volts during KOER.
167 X TPS did not exceed 25% rotation during the Dynamic Response Test.
171 X Fuel system at adaptive limit, HEGO unable to switch (right side)

Last edited by Saltlife; 11-02-2014 at 05:34 PM.
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