is there any way other then the obd port? for some reason my port will not work.... Ive tried 2 different readers and neither will turn on. any suggestions?
thanks

 

On some GM cars a blown fuse will do that some thing like a accy. fuse If all fuses are ok then you need some one with a OBD 11 break out box to go any futher good luck

 

thanks, i hope its something as simple as that! that would make life easy

 

YES---on a fuse change----- GM hides the OBDII fuse on the CIGARETTE LIGHTER circuit--- so check the cig lighter fuse under the hood and change ir--should be a 15 amp---
PS Using the cig ligher plugged in all the time to a charger is a bad thing--often will blow the fuse--also whenvever you do a flash or read on the OBDII port--always disconnet all the accesories on the multiple lighter outlets and turn OFF the radio and A/C---

 

any way you could tell me which fuse it is? the diagram is very hard to read and decipher what is what.

 

without a photo it would be hard to show you--but there is a drawing on the inside of the fuse box cover----i can't read it either--but use a magnifying glass

 

Check Fuse #29
Location 3rd row of fuses from the maxi fuses, 2nd one in from the side.


1-Console Cigarette Lighter
2-Monitored (Inadvertent) Load Control
3-Lumbar Seat
4-Driver Seat Control Module
5-Radio
6-Parking Lamps, Taillamps
7-Cigarette Lighter
8-Stoplamp, Hazard Flashers
9-Body Control Module
10-Windshield WiperiWasher
11-Accessory Power
12-Blank
13-Body Control Module
14-Crank
15-Hazard/Turn Signal
16-Air Bag
17-Tonneau Release
18-HVAC Controls
19-Instrument Panel Control
20-Cruise Control
21-Brake-Transmission Shift Interlock
22-Body Control Module - Ignition 3
23-Body Control Module - Ignition 2
24-Radio Antenna
25-Body Control Module - Ignition 1, Instrument Panel Control
26-Hatch/Trunk Release
27-HVAC Controls
28-Bose Speakers
29-Diagnostic
30-Right Door Control Module
31-Power Feed Door Right
32-Fuel Tank Door
33-Door Control Module Left
34-Power Feed Door Left
35-Circuit Breaker - Driver Power Seat
36-Circuit Breaker - Passenger Power Seat
37-Micro Relay - Monitored (Inadvertent) Load Control
38-Micro Relay - Right Daytime Running Lamp
39-Micro Relay - Hatch Release
40-Micro Relay - Left Daytime Running Lamp
41-Micro Relay - Tonneau Release
42-Micro Relay - Courtesy Lamps
43-Micro Relay - Automatic Lamp Control Parking Lamps
44-Micro Relay - Automatic Lamp Control Headlamps
45-Mini Relay - Bose Speakers
46-Mini Relay - Rear Defogger
47-Maxifuse - Ignition 1
48-Maxifuse - Rear Defogger
49-Blank
50-Maxifuse - Ignition 2
51-Maxifuse - Blower Motor
52-Maxifuse - Starter
53-Blank
54-Maxi Circuit Breaker - Headlamps

I do not remember.

If the maxi fuses are at the top of the box. If so than #29 is 3 rows down on the right side.

If the Maxi fuses are at the bottom of the box than #29 is 3 rows up on the left side.

 

thanks for the help. it ended up being 2 blown fuses. #2 and #29. works great now! now i just need to figure out what is wrong with my active handling, ill start a new thread on that one

 

Read the codes directly from the DASH. Most generic readers won't get the info you want from the OBD port.