Question about Chevrolet 1500

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I need the diagram of the data connector link. The terminal association on the connector and the jumping wire for extract the code whitout technician tool. The list of code needed to. Thank!

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Use pin no 4 and 5, codes are available on the internet, look up obdii codes

Posted on Nov 11, 2010

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Data Link Connector 3 layout


Terminals 12 and 13 are not standard. Manufactures can use them as they see fit. I'm not as familiar with Toyota as some. From what I can find terminal 12 (TS) seems to be associated with some Toyota 4Runner feature called "slip". Terminal 13 (TC) is another Toyota feature called Timing Check. I hope this helps you.

Nov 10, 2014 | 2015 Toyota Tacoma

1 Answer

Dtc2257


This is an air pump code, the pump more than likely has failed. If you are not familar with relays, electrionics, mechanics I suggest bring it to local Technician to test/repair

If you are confident to try this on your own, this is what will be required to do. You will need wiring diagram : First try replacing the air pump relay (relay 2) in the Battery Junction Box (BJB). And check that fuse 4 & 9 are both good. If both are ok you will need to remove the air pump relay - With Key On Engine Off, check for battery voltage (B+) to be present at terminal 30 from fuse 4 of the BJB. Check terminal 86 to be B+ from fuse 9 of the BJB, through the power hold relay. Gain access to the bottom of the BJB and check for B+ on the black with green stripe wire for terminal 85 of the air pump relay. If voltage is present, ground wire to check for relay activation and air pump to run, repair circuit to air pump as needed. If pump runs, backprobe the Black/Green wire at terminal 17 of connector C175B of the Powertrain Control Module . Jump terminal to ground to check for air pump operation. If pump runs, check for bad connection in connector or replace faulty PCM as required

Jan 23, 2014 | 2005 Ford Focus

1 Answer

The check engine light is on in my 89 buick skylark where do i find the diagnostic hookup i looked under the driver side dash and cant find it


the manual says it's above your brake pedal, but I would check on the shock tower next to the battery or next to the relay box. You don't need a scanner for your car, and an OBD2 scanner will not work. I have pasted instructions below for extracting the codes. Please let me know if you need help resolving the faults.

Listings of the trouble codes for the various engine control systems covered in this information are located in this section. Remember that a code only points to the faulty circuit NOT necessarily to a faulty component. Loose, damaged or corroded connections may contribute to a fault code on a circuit when the sensor or component is operating properly. Be sure that the components are faulty before replacing them, especially the expensive ones.
The Assembly Line Diagnostic Link (ALDL) connector or Data Link Connector (DLC) may be located under the dash and sometimes covered with a plastic cover labeled DIAGNOSTIC CONNECTOR.

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  1. The diagnostic trouble codes can be read by grounding test terminal B . The terminal is most easily grounded by connecting it to terminal A (internal ECM ground). This is the terminal to the right of terminal B on the top row of the ALDL connector.
  2. Once the terminals have been connected, the ignition switch must be moved to the ON position with the engine not running.
  3. The Service Engine Soon or Check Engine light should be flashing. If it isn't, turn the ignition OFF and remove the jumper wire. Turn the ignition ON and confirm that light is now on. If it is not, replace the bulb and try again. If the bulb still will not light, or if it does not flash with the test terminal grounded, the system should be diagnosed by an experienced driveability technician. If the light is OK, proceed as follows.
  4. The code(s) stored in memory may be read through counting the flashes of the dashboard warning lamp. The dash warning lamp should begin to flash Code 12. The code will display as one flash, a pause and two flashes. Code 12 is not a fault code. It is used as a system acknowledgment or handshake code; its presence indicates that the PCM can communicate as requested. Code 12 is used to begin every diagnostic sequence. Some vehicles also use Code 12 after all diagnostic codes have been sent.
  5. After Code 12 has been transmitted 3 times, the fault codes, if any, will each be transmitted 3 times. The codes are stored and transmitted in numeric order from lowest to highest.

The order of codes in the memory does not indicate the order of occurrence.
  1. If there are no codes stored, but a driveability or emissions problem is evident, the system should be diagnosed by an experienced driveability technician.
  2. If one or more codes are stored, record them. Refer to the applicable Diagnostic Code chart in this section.
  3. Switch the ignition OFF when finished with code retrieval or scan tool readings.

After making repairs, clear the trouble codes and operate the vehicle to see if it will reset, indicating further problems.

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Jul 13, 2011 | 1989 Buick Skylark

2 Answers

I change my key batery and now the engine wont start


Make sure the battery is in correctly first.
If so, manually unlock the car, start it, and let run for about 2 minutes. Shut off, then shut the doors, unlocked. Use the remote to "lock" the doors, then unlock.
If this does not work, I suggest contacting the dealership of purchase.
Please let me know if you need further assistance.
carsandcomps,
Guru, Premium Expert @ Fixya.com

May 27, 2011 | 2004 Kia Sedona

3 Answers

Where is the diagnostic plug located on a 1994 pontiac sunbird? I want to use a snap-on scanner but can't find a plug.


Hi, your 94 model is not OBD2 compliant. You would need an OBD1 scanner to pull the codes. The connector should be under the dash. There is a manual code extraction procedure I have pasted below. Please let me know if you have more questions, and thanks for using FixYa.

On 1983-94 models, the ALDL connector or Data Link Connector (DLC), located under the dash, and sometimes covered with a plastic cover labeled DIAGNOSTIC CONNECTOR, can be activated by grounding test terminal B . The terminal is most easily grounded by connecting it to terminal A (internal ECM ground), the terminal to the right of terminal B on the top row of the ALDL connector. Once terminals A and B have been connected, the ignition switch must be moved to the ON position with the engine not running.
  1. Turn the ignition switch OFF .
  2. The Service Engine Soon or Check Engine light should be flashing. If it isn't, turn the ignition OFF and remove the jumper wire. Turn the ignition ON and confirm that light is now on. If it is not, replace the bulb and try again. If the bulb still will not light, or if it does not flash with the test terminal grounded, the system should be diagnosed by an experienced driveability technician. If the light is OK, proceed as follows.
  3. The code(s) stored in memory may be read either through counting the flashes of the dashboard warning lamp or through the use of a hand-held scan tool. If using the scan tool, connect it correctly to the ALDL.
  4. After the terminals are connected, turn the ignition switch to the ON position, but DO NOT start the engine. The dash warning lamp should begin to flash Code 12. The code will display as one flash, a pause and two flashes. Code 12 is not a fault code. It is used as a system acknowledgment or handshake code; its presence indicates that the ECM can communicate as requested. Code 12 is used to begin every diagnostic sequence. Some vehicles also use Code 12 after all diagnostic codes have been sent.
  5. After Code 12 has been transmitted 3 times, the fault codes, if any, will each be transmitted 3 times. The codes are stored and transmitted in numeric order from lowest to highest.

The order of codes in the memory does not indicate the order of occurrence.
  1. If there are no codes stored, but a driveability or emissions problem is evident, the system should be diagnosed by an experienced driveability technician.
  2. If one or more codes are stored, record them. Refer to the applicable Diagnostic Code chart in this section.
  3. Switch the ignition OFF when finished with code retrieval or scan tool readings.

Mar 26, 2011 | 1994 Pontiac Sunbird

1 Answer

It is Vitara sidekick 1997 model. Water temp sensor is replaced, the fault code erased, when I start the engine and drive, every thing looks nice, but when I switch off the Ig key and start the engine next...


you can get codes with out scan tool, this is done by counting the engine light flashes, for example a long flash is the first didgt and then faster blinks would be the next number, for example long flash long flash long flash= 3 then fast flash ,fast flash, fast flash, fast flash =4 which would be code 34, to get the codes look in the engine compartment in front of the battery is the connector, you will need a small wire to jump two terminals, jump terminals with wire then turn key on and count flashes, i will give you a diagram to locate connector and it will show you which terminals to jump look at connetor closely to make sure you are jumping the correct terminals, you can turn the key off and on to restart the codes again,this may take you a few trys to get the hang of it but you can restart the codes by just turning the key off and back on, when your done just remove the jumper wire,also a diagram is enclosed to show you how the flashes go, hope this helps ,good luck.

Mar 05, 2011 | 1993 Suzuki Sidekick

1 Answer

I have been trying to retrive the DTC's from my 95 lumina. I tried the OBD-I process, but the MIL did not flash the codes. I bought an CAN OBD-I & II tool, but the reader tells me that the tool is not...


On some 1995 OBD 1 models with a 12-pin Data Link Connector, trouble codes can be accessed by connecting terminal B to terminal A with a jumper wire. With the key in on position, the codes can be read by watching the "service engine soon" light. HOWEVER, some models have a 16-pin DLC and you have to jump terminals 5 and 6 to get the trouble codes to flash.

Feb 11, 2011 | 1995 Chevrolet Lumina

2 Answers

Firing order for a 93 honda civic need to fix the timing


Hi Friend:

#1) I'm Putting a Diagram of your Firing Order up.1st.

Clockwise 1--3--4--2 On Distributor Cap

#2) Your Ingnition Timing , Make sure engines temp is at normal operating temperture, #3) Pull out Engine Service Connector, which is located behind RIGHT SIDE KICK PANEL .

#4) Now take a Jumper wire and Jump the BROWN WIRE with the GREEN AND WHITE Wire Terminals on the Connector.CAUTION: DO NOT JUMP THE 3PIN Data Link on Vehicles 1993 and Up.

#5) Now Connect Timing Light There is a Mark on your Bottom (Crankshaft Pully) Its Red in Color,NOTE: you might have to clean this up before even beginning anything.!

#6) But Look Down to lower Crankshaft Pulley the Timing Light should be Lined up to the RED Mark.Your Timimg Sets at 16 Degrees Before Top Dead Center and Idle should be 670 RPM

Please Let me Know the Quality of my Solution to Help You is By Voting and a Testamony Thanks For Using FIXYA From d_hubbs0900c152800616b0.jpg

Jul 13, 2010 | 1993 Honda Civic 4 Door

2 Answers

How do i check the codes on a 1993 s10 blazer 4.3


if you go to the auto parts store, they may sell a key that jumps out the dlc connector under the dash. the light will blink for the code.#

Aug 12, 2009 | 1993 Chevrolet S-10

1 Answer

How do you access the on board computer without a code reader?


Find the data link connector, w/ a paper clip, u have to jump terminals A and B, then turn key to on position, count check engine light for flashes. Count flashes to determine trouble codes. To see diagram of link connector w/ A and B terminal locations to jump, and list of codes, go to www.troublecodes.net/GM/

Nov 27, 2008 | 1992 Cadillac Seville

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