E4OD Off Light Flashing

XC/TS

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The Tranny Off light is flashing on my 1996 Bronco, reading the manual says there is a malfunction. I grabbed an OBDII tester but it doesn't or didn't give a code for the trans. It shifts and drives fine but according to the manual is operating in default or safe mode. Sometimes the light does go off on the highway.

Is there a way to code test the tranny? Or do I have to break down and go to a shop?

Thanks

 

miesk5

96 Bronco 5.0
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yo,

This problem could be caused by a # of thangs as you know;

get it scanned for Free this at a local parts store, make sure they do both Key On Engine Off (KOEO) & Key On Engine Running (KOER).

, no matter what they calim, which is usually, "it doesn't matter", bu tit does matter.

There are two types of ODB II Tests, Key On Engine Off (KOEO) & Key On Engine Running (KOER).

The engine temperature must be greater than 50°F (10°C) to pass the KOEO Self-Test and greater than 180°F (82°C) to pass the 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 em here according to KOEO & KOER

=========================

Could be as simple as:

Transmission Control Indicator Light (TCIL) Troubleshooting in 92-96; "... Several different complaints concerning the overdrive cancel indicator may occur due to a faulty O/D cancel LED. At times the light may simply fail to light, flicker erratically, or glow very dim. Tapping the shift knob lightly may affect the operation of the LED, causing it to work temporarily. These complaints are usually due to a faulty O/D indicator LED. To replace the LED carefully pry the cap off the end of the shifter and pull the LED/switch out. Slide the new switch into position and snap the cap back on. Note: Don’t confuse the above conditions with a steady flashing pattern of the O/D cancel light. A steady rhythmic flashing pattern indicates a malfunction has been detected by the computer.; Part #F58Z-7G550-A..."

Source: by ATC-Distribution Group Inc. atcdg.com via web.archive.org

E4OD Overdrive Cancel Light & Switch Replacement; It is easy to replace & under $12.00 from local Ford dealer or OUR SPONSOR; Jeff's Bronco Graveyard;

"This is the overdrive button on the end of the column shifter, comes with small cap. Price: $10.00."

ODSHIFTBUTTON.JPG


be ready to catch the switch/LED assy when prying it off; it is spring loaded..not much force.

Source: by miesk5and; I need to look for my notes on what fuse blew due to a harness short under strg column that affected the OD Cancel Light (it blinked randomly, no Trouble Codes or tranny malfunctions though); think it was 17

Check wiring where shifter meets column and down;

by miesk5

Fuse Block Diagram in an 96 by our pal here, roadkill



"...check the wires coming out of the shifter handle, I have had several trucks have those wires short out and cause some strange symptoms. Just pull the plastic cover off the top of the column and take a look, it's pretty obvious when it happens..." by jrainw

Here is a TSB that deals with it; for a 92 though.. and may apply, becuse Ford does mention Fuse 17;... even tho year range is off...

1992 Ford Truck F 150 4WD Pickup V8-351 5.8L

Vehicle Level Transmission and Drivetrain Technical Service Bulletins Customer Interest Electrical Systems - Multiple Malfunctions

Electrical Systems - Multiple Malfunctions

Article No. 92-22-5 10/21/92

LIGHT TRUCK: 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

or some other rel <$ probs (MLPS, etc.)

or more $ stuff; many are listed in my site

 

XC/TS

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Joined
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Messages
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Miesk5,

The OBD-II Is reading the following codes.

P1351 Ign Sys or Misfire.

P1359 Ign Sys or Misfire or Spark

P0443 EVAP Emis Control Sys Purge Valve C Fault

These codes read Key on Engine off and Key on Engine on. I reset them drove a bit and got the same codes.

The OD Off light is flashing most of the time and when flashing you cannot turn 4th turn OD Off.

Sometimes it stops flashing and goes out, then you can press it and the OD light is steady on turning off OD.

Probably not related but FYI. When I bought it in Feb I had 2 other codes, P0171 and P0174, changing the fuel filter cleared these codes. The previous owner had the fuel pump replaced within the past year.

Thanks for the help, Ted

 

miesk5

96 Bronco 5.0
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yo Ted,

yw.

DTC P1351 Ignition Diagnostic Monitor Circuit Input Fault "...P1351 can occur if the Igniton Module was replaced with the Gray one instead of a Black one. The ICM Should be Black in color for the CCD Type Module. Many Ford parts sources are incorrect and show that this vehicle should have a Grey module. The Motorcraft part number for the Black ICM is a Motorcraft - DY1077 (supercedes DY679, DY667, DY645)

..."

Source: by miesk5

Wiring Schematic

by Ryan M

------

DTC P1359 Spark output circuit condition; ECM detected no SPOUT signal from distributor. Probable Cause: SPOUT connector missing; Open circuit condition; Ignition control module fault. 1. Check the Spark Output (SPOUT) connector near the Ignition Control Module (ICM) at the rear of driver side fender apron (near hood hinge) to see if the SPOUT connector is missing or is making poor contact to the connector. 2. If the SPOUT connector & connection appear to be in good condition, install a timing light onto #1 spark plug wire and check for timing advance at idle with the engine running.

Ignition timing should indicate 10 degrees BTDC with the SPOUT connector removed but timing should then advance when the connector is plugged back in. 3. If there is no timing advance using a timing light, check the Pink (PK) wire at the ICM connection for a square-wave signal as the engine is running using a labscope. 4. If there is no signal present on the PK wire, check the PK wire between the ICM and PCM pin 50 for an open circuit. 5. If the circuit checks to be OK and ignition timing appears to be advancing over base timing with the SPOUT connector installed, clear the code, disconnect the voltage regulator at the alternator and drive the vehicle for several miles to check for the light to illuminate and the code to reset. 6. Check coil output of all individual spark plug wire ends to verify that spark will jump a 1/2-3/4" gap consistently and that it has a bluish tint of color to it. 7. If spark output is weak or erratic, replace the coil and re-check for the setting of the service code. 8. Also inspect all plug wires ends for potential pin-hole leaks that could allow spark to arc to the cylinder heads in the plug well. Run a grounded screw driver up and down the plug wire boot as the wire is connected to a spark tester to determine if any of the wires are faulty. 9. If timing advance appears to be working properly and there are no electrical issues related to the alternator, coil or plug wires, either the PCM or the ICM will need to be substituted to determine if one of them is causing the condition. See diagram by Ford via Steve83 @ http://www.supermotors.net/registry/media/833750_1

1996 is CCD H Black Module as in the prev DTC.

DTC P0443 Description & Tests; Finding (& fixing) EVAP system leaks; "...If you can't detect a leak at the moment, record the data, clear the DTC and talk to the customer. There are a number of reasons why the system might not appear to be leaking when you test. Sure, the gas cap might be bad or may have been left loose. The gas tank may be too full to run an accurate test. Some leaks seal up when the temperature increases. You may need to retest the vehicle when it's cold..."

Source: by Ludlow B at motor.com

DTC P0443 & P0443; "...The most common code that will set with these systems is P0443, which has to do with the circuit of the canister purge solenoid or vapor management valve. This code is caused by an electrical problem inside the solenoid, the wiring to it, or a bad PCM. The other common code is a P1443. This is due to the PCM not seeing enough flow through the purge flow sensor when the canister purge solenoid is energized or the IACV not needing to change enough when the VMV is energized..."

Source: by Bob M at asashop.org

DTC P0443: "... EVAP Control System Canister Purge Valve Circuit Malfunction The PCM monitors the state of the EVAP canister purge valve circuit output driver. The test fails when the signal moves outside the minimum or maximum limit for the commanded state. VPWR circuit open. EVAP canister purge valve circuit shorted to GND Damaged EVAP canister purge valve EVAP canister purge valve circuit open EVAP canister purge valve circuit shorted to VPWR Damaged PCM..." read more Source: by MikeP0443 - EVAP Control System Canister Purge Valve Circuit Malfunction The PCM monitors the EVAP canister purge valve circuit for an electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified purge duty cycle by PCM command. VPWR circuit open

EVAP canister purge valve circuit shorted to GND

Damaged EVAP canister purge valve

EVAP canister purge valve circuit open

EVAP canister purge valve circuit shorted to VPWR

Damaged PCM

Monitor EVAPPDC PID and voltage between EVAP canister valve signal and PWR GND in output test mode with key ON engine OFF (or in key ON engine running mode). EVAPPDC PID at 0% and voltage less than 1.0 volts (or EVAPPDC PID at 100% and voltage greater than 0.5 volts) indicates a hard fault.

DTC P0443, P1443, P1444, P1445, P1451; Canister Purge (CANP) solenoid output circuit is checked for opens and shorts internally in the PCM by monitoring the status of the duty-cycled output driver. When the output driver is fully energized, or de-energized, the feedback circuit voltage should respond high or low accordingly (P0443). The Purge Flow Sensor is check for circuit continuity (P1444, P1445) The CANP solenoid functional check uses a Purge Flow Sensor (PFS) to check for adequate purge flow. The PFS voltage is checked when the solenoid valve is normally open (> 75%), then checked when the solenoid valve is commanded closed (0%). The Vapor Management Valve (purge solenoid) output circuit is checked for opens and shorts (P0443); P0443 (Vapor Management Valve Circuit): open/shorted at 0 and 100% duty cycle..." read more in 1996 MY OBD System Operation Summary for Gasoline Engines Source: by Ford motorcraftservice.com

This is a PDF file

=============

Evaporative Emission Canister Purge Valve

A typical evaporative emission canister purge valve (EVAP canister purge valve) (9C915) is shown in the following illustration. The evaporative emission canister purge valve is located in the vapor tube between the evaporative emissions canister (EVAP canister) (9D653) and the throttle body (9E926), and is normally in the closed position until electrically energized.

The operation of the evaporative emission canister purge valve is controlled by the powertrain control module (PCM) (12A650). When the engine (6007) is off, the evaporative emission canister purge valve is not energized and is in a closed, nonflowing condition. When the engine is running, the powertrain control module reads engine rpm, engine load, engine temperature and other variables, and decides the proper time for the engine to accept fuel vapors. When this occurs, the powertrain control module energizes the evaporative emission canister purge valve, allowing flow from the evaporative emissions canister to the intake manifold. The vapors are then consumed in the engine. This action purges the evaporative emissions canister of fuel vapors. It occurs as fresh air is sucked into the evaporative emissions canister under the fresh air inlet cap of the evaporative emissions canister and through the activated carbon bed. This allows the stored fuel vapors to pass from the evaporative emissions canister through the evaporative emission return tube (9G271) and the evaporative emission canister purge valve, and into the engine.

The 5.0L engines utilizes a fuel vapor management valve (VMV). The vapor management valve (VMV) functions in a manner similar to that of the evaporative emission canister purge valve

from 1996 Bronco Workshop Manual

http://www.supermotors.net/registry/media/72420

VMV Depiction by Ford via Steve83

Fuel Vapor Management Valve (VMV), 5.0L Engine

Item Part Number Description

1 9C987 Fuel Vapor Return Hose and Valve Assembly

2 9C915 Vapor Management Valve

3 — Hose (Purge Valve-to-Throttle Body,

Part of 9C987)

4 9E926 Throttle Body

5 9D653 Evaporative Emissions Canister

6 — Fender Apron

7 9A220 Fuel Vapor Return Connector Assembly

8 N800369-S2 Screw, M6.3-1.81 x 16

9 — Evaporative Tube (Refer to Vapor Line Installation Illustrations in This Section)

10 9G271 Evaporative Emission Return Tube

11 9D664 Fuel Bracket

A — Tighten to 5-7 Nm

(44-62 Lb-In)

B — Route on Fender Side of Secondary Air Injection Supply Pump Inlet Hose

miesk5 note the Vapor Management Valve (EVAP SYS) is located on passenger side firewall, high in our 96 5.0L; miesk5 note; for OBD II, The vapor management valve (VMV) replaces the canister purge valve used in EEC IV

 

miesk5

96 Bronco 5.0
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yo,

also, I's like to enter this for posterity purposes; it is also from Ford.

DTC P0443: EVAP Control System Canister Purge Valve Circuit Malfunction; "The PCM monitors the state of the EVAP canister purge valve circuit output driver. The test fails when the signal moves outside the minimum or maximum limit for the commanded state; VPWR circuit open, EVAP canister purge valve circuit shorted to GND, Damaged EVAP canister purge valve, EVAP canister purge valve circuit open, EVAP canister purge valve circuit shorted to VPWR, Damaged PCM; To verify normal function, monitor the EVAP canister purge valve signal PID EVAPPDC (or EVMV for electronic valve) and the signal voltage (PCM control side). With the valve closed, EVAPPDC will indicate 0% duty cycle (0 mA for EVMV) and the voltage approximately equal to battery voltage. When the valve is commanded fully open, EVAPPDC will indicate 100% duty cycle (1000 mA for EVMV) and a voltage drop of 3 volts minimum is normal. Output test mode may be used to switch output ON/OFF to verify function..."

The vapor management valve (VMV) replaces the canister purge valve used in EEC IV

 

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