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

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

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
  • 6826 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

  • 2 Answers

SOURCE: 2002 pontiac montana passanger pwr window

I beleive you need to change the Power Window Switches Module in the drivers side door panel, as these connections are interlinked within this module and it is usually the first part that fails. Especially that you already changed the switches & motor in the passenger door and it still does not work. Once you remove the dual switch module in the driver's side door, you will understand what I mean. Plus it is really easy to access. Good luck! I have the same model, Claude

Posted on Jun 16, 2010

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3 Answers

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What year an make vehicle ? Before 1996 you can do that on some make vehicles , not all ,GM cars mostly ! 1996 an above need scanner for all vehicle makes !

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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.

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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

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I have been driving Pontiac Montana 2003 with an excellent company maintenance service, just got the 100,000 miles point and last Sunday it looked that the car lost electrical power turning off at the...


Hello
Your OBD II scanner doesn't read the BCM (Body Control Module) and likely that is what has the fault codes in it for your present problems. At this point I suggest you get a GM dealer to scan the BCM with the special scanner (called a TECH II) required to do the check and see what shows up.

Aug 24, 2011 | 1999 Pontiac Montana

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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?

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Sep 30, 2010 | 2001 Ford Windstar

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Blown power fuse for obd connecter. May be under hood or in interior fuse panel.

Mar 31, 2009 | 1999 Pontiac Montana

3 Answers

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)

Aug 07, 2008 | 1995 Pontiac Sunfire

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