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Can't get any response with tech 2 from the dlc & can't find a diagram of dlc

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How to tell thenumber 1 knock sensor from the number 2

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Jul 17, 2014 | Toyota Camry Cars & Trucks

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My 2004 Tahoe LT was put on a diagnostic machine and did not give any codes. The tech said that there was no power coming from my diagnostic plug.

I'm thinking Marcos is on the right track. In todays world with all the gadgets such as phones and GPS's, they tend to get plugged into the cigarette lighter. These cigarette lighter circuits are not able to handle the amps our gadgets put out which in turn blows the fuse which just happens to be the same circuit as the power for your data link connector plug. Below is a fuse layout diagram for the fuse panel located under the hood of the vehicle in the engine compartment. I have marked the fuse you need to check (it should be a 15 amp fuse). If the fuse is good then you may want to check directly at the data link connector on the left side under the dash where the tech who tried to get codes for you plugged in his scanner. Below the fuse diagram is a picture of the data link connector. The top of the DLC is wider then the bottom (like a triangle kinda). I have marked the terminal of that connector that should have the power (lower, bottom part of the "triangle". the narrow not wide). That terminal which should have an orange wire is you power wire. If you have power, you may be looking at a ground proplem or if it doesn't have power and the fuse is good, you will need to locate the open wire to find your power loss. On a personal note, if it is just the fuse that's blown, I don't think I would take my vehicle back to that same tech. Pretty much every tech with a little knowledge should know that this is the first place to look if not getting popwer at the DLC. Hope this helped you out.....


Feb 03, 2013 | 2004 Chevrolet Tahoe

2 Answers

My obd2 isn't getting power what I do?

Check Pin #16 on the Data Link Connector (DLC) for battery voltage. (See Diagram)

If there is no battery voltage present check the fuse marked "OBD II" in the engine compartment fuse block. It is a 10 Amp fuse. If the fuse is good, repair the circuit between the fuse and pin #16 at the DLC.
If battery voltage is present at Pin 16 at the DLC, check for ground at pin 4 on the DLC. If ground is not present, repair the ground circuit between the DLC and Ground G202 located at the left side of the dash.
HINT: the easiest way to check BOTH of these at the same time is to use paper clips plugged into pin #16 and Pin #4 and connect a light bulb between the two. If the light illuminates brightly, power and ground are both OK.
If no problem with power or ground is detected at the DLC, check the Owner's Manual for your code reader.


May 11, 2012 | 2000 Kia Sephia

1 Answer

1997 chevy s10 zr2 failed emissions

You most likely have a blown Auxilliary Power Outlet fuse. (Happens all the time) The Auxilliary Power Outlet fuse also powers you Data Link Connector (DLC). If the DLC has no power, the computer scanner will not communicate with the engine computer.
Check Fuse #7 (25 Amp) in the instrument panel fuse block. (See diagram)


Feb 05, 2012 | Chevrolet Cars & Trucks

1 Answer

No I just need a diagram of my fuse box, so I can know what fuses is for what part.

Here is the link to show you the diagram for the fuse box,copy and paste address into address bar then press enter.

Mar 30, 2011 | 2000 Ford Mustang

1 Answer

I need a fuse diagram for 95 ford aerostar van,r:2,s:9&tx=47&ty=85&biw=1024&bih=569

Mar 25, 2011 | 1994 Ford Aerostar Extended

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I replaced my battery and now I have a engiine light vsc light and 4wd light warning no throttle response and problem code p2118. checked all fuses all good. any ideas please help.

Tests/Procedures: 1. Perform zero point calibration of the yaw rate sensor/deceleration sensor. Potential Causes: Deceleration Sensor Zero Point Calibration
Tech Tips: Code C1336 is for Deceleration sensor zero point calibration undone. To perform zero point calibration, have the steering wheel in the straight ahead position and have the vehicle on a level surface within an inclination of 1%. Turn the ignition switch OFF. Use a jumper wire and connect terminals TS and CG of Data Link Connector (DLC) 3. Turn the ignition switch ON. Keep the vehicle stationary on a level surface for 2 seconds or more and verify that the VSC warning light blinks. Diagnostic Codes: C1336

Jan 24, 2011 | 2006 Toyota RAV4

1 Answer

Firing order diagram on 4998 ford mustang

Firing order diagram on 1998 Ford Mustang V6: 1 - 4 - 2 - 5 - 3 - 6 LEFT bank numbered 1 to 3, right bank numbered 4 to 6 coil Pack: 1 2 3 5 6 4


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May 20, 2010 | Cars & Trucks

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1997 Nissan pickup seems to be flooding with rough idle & black smoke. Techs troubleshooting computer is not picking up engine computer.

If his scanner won't pick up the computer then the fuse may be blown for the computer or the DLC data link connector fuse may be bad it has two. If the DLC is dead test the three fuses in the cab and the one in the engine compartment on passenger side. if still no Data then you have a bigger problem. The 97 98 changed and They had some problems with the harness Where the plug goes into the fuse inside the cab to the computer.

Sep 29, 2009 | 1994 Nissan Pickup

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