Question about 1999 Pontiac Montana

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No power at dlc conn 16, 2000 Pontiac Montana

Unable to read obd II codes, scanner does not recognize its plugged in. Where does power feed for pin 16 originate from? Any common failure pointts?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: check engine light for a 1995 pontiac sunfire

OBD 1.5 OBD 1.5 refers to a partial implementation of OBD-II which General Motors used on some vehicles in 1994 and 1995 (GM did not use the term OBD 1.5 in the documentation for these vehicles - they simply have an OBD and an OBD-II section in the service manual.)
For example, the 94-95 Corvettes have one post-catalyst oxygen sensor (although they have two catalytic converters), and have a subset of the OBD-II codes implemented. For a 1994 Corvette the implemented OBD-II codes are P0116-P0118, P0131-P0135, P0151-P0155, P0158, P0160-P0161, P0171-P0175, P0420, P1114-P1115, P1133, P1153 and P1158.[1]
This hybrid system was present on the GM H-body cars in 94-95, W-body cars (Buick Regal, Chevrolet Lumina ('95 only), Chevrolet Monte Carlo ('95 only), Pontiac Grand Prix, Oldsmobile Cutlass Supreme) in 94-95, L-body (Chevrolet Beretta/Corsica) in 94-95, Y-body (Chevrolet Corvette) in 94-95, on the F-body (Chevrolet Camaro and Pontiac Firebird) in 95 and on the J-Body (Chevrolet Cavalier and Pontiac Sunfire) and N-Body (Buick Skylark, Oldsmobile Achieva, Pontiac Grand Am) in 95.
Depending on the year and the vehicle, a car with the OBD 1.5 system may have either the older OBD-I connector, or the newer OBD-II connector, but they are electrically identical to each other.[citation needed]
The pinout for the ALDL connection on these cars is as follows:
180px-obd-connector-pinout.png magnify-clip.pngFemale OBD connector pinout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 For ALDL connections, pin 9 is the data stream, pins 4 and 5 are ground and pin 16 is battery voltage.
Additional vehicle-specific diagnostic and control circuits are also available on this connector. For instance, on the Corvette there are interfaces for the Class 2 serial data stream from the PCM, the CCM diagnostic terminal, the radio data stream, the airbag system, the selective ride control system, the low tire pressure warning system and the passive keyless entry system.[2]
An OBD1.5 has also been used on Mitsubishi cars of '95 '97 vintage.
An OBD1.5 has been used in some 1995 Volkswagen VR6's (Juice Box's GTI)

Posted on Aug 16, 2008

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bunnydawg
  • 5158 Answers

SOURCE: 1993 E-150 - OBD I or OBD II

All cars built since January 1, 1996 have OBD-II systems. Manufacturers started incorporating OBD-II in various models as early as 1994. Some early OBD-II cars were not 100% compliant.

http://www.obdii.com/connector.html#dates

check the link to see which vehicles were not compliant.

Robert

Please take a moment to rate this solution.. thanks

Posted on Jan 27, 2009

  • 1619 Answers

SOURCE: Pontiac Montana overheating

How do you know the thermostat is ok? If in doubt replace it. Water pumps are a even bigger what if. Did he do a radiator flush? Cooling system flush of the engine? Cooling fans come on at what temp and go off when? Replace the engine temperature sensor? 6 years old is bound to have sensors and such go bad.

Posted on Jun 16, 2009

  • 1 Answer

SOURCE: Dlc location

try unpluging the connector to the crankshaft position sensor and then try the scanner again. i had the same problem on a 1998 cherokee and it turned out to be a small bearing(bb size) had found its way onto the end of the sensor. the scanner was unable to link with the vehicle, gauges would not work nor would the fuel pump. sounds weird i know, but i replaced the sensor and everything was ok.

Posted on Sep 06, 2009

roniecon
  • 6927 Answers

SOURCE: 1998 Pontiac firebird obd II code 0336

Is the knock sensor pluged up?What engine is this?If the knock sensor is o k ,and not bad,and it is pluged up,then the code is telling you that the timming chain is out of sink.Most likely a half,or less out.A strian on the cam,could cause this,from a oil pump trying to freeze up.Or the timming chain needs to be changed out,along with all it`s components.I hope this was helpful,maybe not good news,but most likely the truth,Let us know if it was helpful if you would,If I can help,let me know.

Posted on Oct 06, 2009

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1 Answer

E46 320i 2002 model cranks but will not start.pump pressure is ok at 3.2b plugs have spark what could be the problem


I would first check for error codes using an OBD-II scanner tool- then research the Diagnostic Troubleshoot Code(s) to point you in the direction of the problem. Most common error is when DIYers read the scanner tool and automatically assume scanner codes pulled will pinpoint the exact problem. Scanner tools vary in scope. The bottom line, use the tool as a starting reference point, but you will have to test the component to make sure it is the one that is malfunctioning. You can read more about OBD-II codes at the following URLs:

OBD II Trouble Codes Home


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Feb 13, 2017 | Cars & Trucks

1 Answer

Obd


the 16 pin is only to read and reset light, to do any work or look at data you need the 38 pin plug.
the 16 pin scanner any auto part store sells them, but you have a mercedes, and in 1993 OBD II didn't exist.

Jan 27, 2014 | 1993 Mercedes-Benz E-Class

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.

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May 11, 2012 | 2000 Kia Sephia

1 Answer

I am trying to connect a scanner ob2 to check engine light that is on but not reading also tried taking positive cable off battery then drove it for 30 min light still on what can i do


1996 is the first year that OBD II was mandated. Some cars will have the OBD II port but not be OBD II compliant. Does it have the 12 pin port or the 16 pin port?

Feb 01, 2011 | 1995 Pontiac Bonneville

1 Answer

OBD unable to access Diagnostic code


check the fuses for the obd system it could have blown making it unable to read because theres no power to the plug. if the fuses are ok using an ohm meter probe the plug with the ignition on is there power to one of the pins? if not there may be a break in the wire for the power part required for the obd to power up and read. hope this helps

Jan 29, 2011 | Ford Focus Cars & Trucks

2 Answers

When we put it on the machine to read the computer, nothing happen. what is wrong with it.


you must check your fuses under the hood, usually one is blown that feeds power to that plug

Sep 30, 2010 | 2001 Ford Windstar

3 Answers

I need to know how to manually retrieve dtc codes without a scanner.What are the steps of this procedure.I have a 1995 chevy cavalier 2.2 l with a check engine light on.The pin terminal has 16 pins.


This info is from the tech manual.....because you have a 16-pin DTC connector, you have the OBD II system in your car. This is cut and pasted info from the tech manual:

Fig. 2: A Tech 1® , or equivalent scan tool must be used to retrieve codes from 1996–00 models with the 16-pin DLC connector


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If you look on your doorjamb and read the sticker, it will tell you the year of your car...and if it was manufactured AFTER a certain month, then you have the 96 model...and from what you are saying, you have a 96 model because it has the 16-pin connector and not the 12-pin connector that the 95 and earlier had.

Reading Codes OBD-I SYSTEMS
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Jul 27, 2009 | Chevrolet Cavalier Cars & Trucks

1 Answer

No Check Engine Light working


check to make sure the ecm fuse is not blown,also check pin 16 on the plug where you plug in the scanner should be last pin on bottom row make sure this pin has power when the key is in the on position,hope this helps let me know

Mar 23, 2009 | 1998 Cadillac Catera

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