Question about 2000 Ford F350 Super Duty Super Cab

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I have a 2001 f350 with the check engine light on the code i got is po1690 mfg control aux input aux output

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I am assuming this is a diesel
additionally, I am assuming that the code is a P1690
I think you may have been mislead by the auto part store that pulled your code.. they often state codes as POxxxx
but codes are either, B, C, P or U followed by four digits
a typical po code is P0171... note the 0 is a zero not a letter

but I digress.... sorry


the P1690 sets when the PCM has detected a WGC fault
the most common causes are...

  • Blown fuse
  • open or shorted circuit
  • faulty WGC solenoid
  • faulty PCM

depending on your electrical diagnoses I can step you through the testing process but if you actually want to throw some parts on it today start with making sure your fuses are ok followed by replacing the WGC solenoid

if there is anything else I can do, just let me know
my name is Sean

Posted on Jun 03, 2010

  • franciscocab Jun 04, 2010

    Hey Sean , Thank you for responding to my problem , I'm going to check my fuses and selenoid , if thats not the problem , I'll be checking back with you about the PCM , because I don't know what that is.


    So thanks again ,
    Your Amigo ,Victorino





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Which codes (OBDI or II) do I use for my 1994 Jeep Grand cherokee laredo 4.0 2wd


before 1996 they use onboard diagnosis system for jeep.

when you turn on key you need to count check engine light blinks.

here are codes taken from internet.

11* No crank reference signal detected during engine cranking.
12* Direct battery input to PCM was disconnected within the last 50 key-on cycles.
13** No difference recognized between the engine MAP reading and the barometric (atmosphereic) pressure reading at start-up
14** MAP sensor input below minimum acceptable voltage.
or
MAP sensor input above maximum acceptable voltage.
15** No vehicle distance (speed) sensor signal detected during road load conditions.
17* Engine coolant temperature remains below normal operating temperatures during vehicle travel (thermostat).
21** Neither rich nor lean condition detected from the oxygen sensor input.
or
Oxygen sensor input voltage maintained above the normal operating range.
22** Engine coolant temperature sensor input above maximum acceptable voltage.
or
Engine coolant temperature sensor input below minimum acceptable voltage.
23** Intake manifold air temperature sensor input above maximum acceptable voltage.
or
Intake manifold air temperature sensor input below minimum acceptable voltage.
24** Throttle position sensor input above maximum acceptable voltage.
or
Throttle position sensor input below minimum acceptable voltage.
25** A shorted condition detected in one or more of the idle air control motor circuits.
27* Injector #1 output driver does not respond properly to the control signal.
or
Injector #2 output driver does not respond properly to the control signal.
or
Injector #3 output driver does not respond properly to the control signal.
or
Injector #4 output driver does not respond properly to the control signal.
or
Injector #5 output driver does not respond properly to the control signal.
or
Injector #6 output driver does not respond properly to the control signal.
33* An open or shorted condition detected in the A/C clutch relay circuit.
34* An open or shorted condition detected in the speed control vacuum or vent solenoid circuits.
or
Speed control switch input below the minimum acceptable voltage.
or
Speed control switch input above the maximum acceptable voltage.
35* An open or shorted condition detected in the radiator fan relay circuit.
41* An open or shorted condition detected in the generator field control circuit.
42* An open or shorted condition detected in the auto shutdown relay circuit.
44* An open or shorted condition exists in the engine coolant temperature sensor circuit or a problem exists in the PCM's battery temperature voltage circuit.
46** Battery voltage sense input above target charging voltage during engine operation.
47** Battery voltage sense input below target charging voltage during engine operation. Also, no significant change detected in battery voltage during active test of generator output.
51** Oxygen sensor signal input indicates lean air/fuel ratio condition during engine operation.
52** Oxygen sensor signal input indicates rich air/fuel ratio condition during engine operation.
53* PCM internal fault condition detected.
54* No fuel sync (camshaft signal) detected during engine cranking.
55* Completion of diagnostic trouble code display on the malfunction indicator lamp (check engine lamp).
62* Unsuccessful attempt to update SRI (service reminder indicator) miles in the PCM EEPROM.
63* Unsuccessful attempt to write to an EEPROM location by the PCM.

* - Check engine lamp will not illuminate at all times if this code was recorded. Cycle ignition key as described and observe code flashed by check engine lamp.

** - Check engine lamp will illuminate during engine operation if this code was recorded.

PCM = Powertrain Control Module (the engine computer)
MAP = Manifold Absolute Pressure (the sensor that measures how hard the engine is sucking air through the intake manifold
EEPROM = Electrically Erasable Programmable Read Only Memory (a type of computer chip used inside the PCM)

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1 Answer

My 2009 Hyundai Sonata quit accelerating while driving in town. The ESC and check engine light came on. I was able to turn the car off and back on and the ESC light went off and acceleration worked...


This may not be your problem but it does bring the vehicle in fail safe you may have a warranty
Group TRANSAXLE
Number 09-AT-016
Date AUGUST, 2009
Model
1999-SONATA
2001-ELANTRA, SANTA FE & XG
2003-TIBURON
2005-TUCSON
2006-AZERA
2007-ENTOURAGE

Subject
AUTOMATIC TRANSAXLE DIAGNOSTIC TROUBLE CODES P0715, P0716, P0717, P0720, P0721 & P0722

An improperly functioning input speed sensor or output speed sensor may result in the following conditions:
^ "Check Engine" light on
^ Harsh P-R or P-D engagement shock
^ Transaxle in 3rd gear fail-safe
^ Diagnostic trouble codes 1. Using a GDS, check for DTCs in both the "Engine" and "Automatic Transaxle" menus. Record the DTC and description.
2. From the GDS, select:
^ Vehicle
^ "Auto Transaxle" menu
^ "Current Data"
^ "Input speed sensor" and "output speed sensor". Drive the vehicle and monitor the input and output speed sensors. If the sensors show:
^ Continuous output, the wiring currently has no open/shorts. Go to Step 6.
^ No output, go to Step 3
3. Check the wiring harness visually for an open circuit or short circuit to ground. Check for a pinched harness at the PCM/TCM attachment bolts.
4. Disconnect the connectors at the input and output speed sensor and PCM/TCM. Check for bent pins or pins not fully inserted into the connector.
5. If a harness open/short is found, repair or replace the ECM control harness between the PCM/TCM and transaxle and go to Step 8. If not, go to Step 6.

Aug 22, 2011 | Hyundai Sonata Cars & Trucks

1 Answer

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befor doing anything else, check each glow plug resistance, one bad one will cause problems

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1 Answer

Kia Sportage 93171K


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the evap code wont prevent starting
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check for fuel in tank and that it has proper fuel pressure

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1 Answer

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1 Answer

My 01 hyundia santa fe sounds like a golf cart it sounds like power steering but thats not the problem also when i accelerate it will jolt and will only work in 3rd or 2nd gear so i haft to take off in 2nd...


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1 Answer

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I suspect RFI, affecting the OSS signal to the CPM. I will post the actual PCM rationality test, it will help you understand what the PCM looks for before setting the code.Possible sources of strong RFI are the alternator, Battery cables corroded, fuel pump faulty, and any other wire running next to the returning wiring harness, the return signal from the OSS signal is tied to your transmission solenoid, TSS, and a few other electrical systems, any of them will send an unwanted voltage that can interfere with the signal.

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1 Answer

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1 Answer

Engine trouble code P1627 has popped up


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Manufacturer contrl.
Aux. inputs
Aux outputs

it means there's a problem on either aux input or the output try to check both connection.

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