Hello C5 Brothers and Sisters

I have a TECH2 and I sort of intimated with it. It does SO MANY THINGS that unless you are properly trained to use it, It is a ROYAL PAIN IN THE **** to figure out what "PATH" to take to get to the end result that you need to do.

So, I did some digging in GOOGLE and found the HOLY GRAIL of PATHS!

http://service.gm.com/userguides/english/t2paths-en.pdf

The PDF document allows you to quickly fine the procedure alphabetically by clicking on the letters at the top of the page A, B, C, D, ......

Im going to try to do a CRANK SENSOR RELEARN tonight using this document and see if i get to the correct screen:

Crankshaft Pos. Variation Learn – Engine > Engine Electrical > Module Setup > Powertrain Control Module

Here is the entire document copied and pasted: If you print it out,, it ends up being 154 pages..

Hope this helps someone..

Bill




2005 Tech 2 Pathing 1
Tech 2 Pathing
Most of the practical Tech 2 pathing is listed on the following pages for your reference. Paths are arranged alphabetically beginning with the end
result—the final “string” displayed on the Tech 2 screen.
Depending on the vehicle, each path originates with one of 12 selections: Powertrain, Chassis, Body, Vehicle Control Systems, HVAC, Steering,
Suspension, Brakes, Engine, Transmission/Transaxle, Body and Accessories, and Restraints.
Search for a specific string by clicking one of the letters above to take you closer to the end string you seek, or by clicking on the Adobe Reader
binocular “Find” icon (usually located on the toolbar near the top of your screen) and keying in the exact phrase.
1-2 / 3-4 Shift Solenoid – Powertrain > Special Functions > Transmission Output Controls
1-2 / 3-4 Shift Solenoid – Powertrain > Special Functions > Transmission Output Controls > Solenoid Controls
1-2 Solenoid – Powertrain > Special Functions > Transmission Output Controls
1-2 Solenoid – Transmission/Transaxle > Automatic Transaxle > select optional question(s) if applicable > Special Functions > Powertrain Control Module
1-2 Solenoid – Transmission/Transaxle > Automatic Transaxle > Special Functions > Transmission Control Module
1-2 Solenoid – Transmission/Transaxle > Automatic Transmission > Special Functions > Transmission Control Module
1-4 Shift Lamp – Powertrain > Special Functions > Engine Output Controls > Dash Lamps
1-4 Shift Solenoid – Powertrain > Special Functions > Engine Output Controls
14V-42V Command – Powertrain > Special Functions > HPCM Output Controls
1st – Body > Instrument Panel Cluster > Special Functions > PRNDL Display
2 Wheel Steer Mode Lamp – Chassis > Rear Wheel Steering > Special Functions
2-3 Shift Solenoid – Powertrain > Special Functions > Transmission Output Controls > Solenoid Controls
2-3 Solenoid – Powertrain > Special Functions > Transmission Output Controls
2-3 Solenoid – Transmission/Transaxle > Automatic Transaxle > select optional question(s) if applicable > Special Functions >
Powertrain Control Module
2-3 Solenoid – Transmission/Transaxle > Automatic Transaxle > Special Functions > Transmission Control Module
2-3 Solenoid – Transmission/Transaxle > Automatic Transmission > Special Functions > Transmission Control Module
2nd – Body > Instrument Panel Cluster > Special Functions > PRNDL Display
2nd Gear Start Lamp – Powertrain > Special Functions > Transmission Output Controls
2WD High Indicator Light – Powertrain > Special Functions > ATC Output Controls
3 Speed Fan – Powertrain > Special Functions > Engine Output Controls > Fan Controls
3-2 Downshift Solenoid – Powertrain > Special Functions > Transmission Output Controls
2005 Tech 2 Pathing 2
3-2 Downshift Solenoid – Transmission/Transaxle > Automatic Transmission > Special Functions > Transmission Control Module
3rd – Body > Instrument Panel Customer > Special Functions > PRNDL Display
4- 5 Solenoid – Powertrain > Special Functions > Transmission Output Controls
4 Wheel Steer Mode Lamp – Chassis > Rear Wheel Steering > Special Functions
42V-14V Command – Powertrain > Special Functions > HPCM Output Controls
4-5 Solenoid – Transmission/Transaxle > Automatic Transmission > Special Functions > Transmission Control Module
4WD High Indicator Light – Powertrain > Special Functions > ATC Output Controls
4WD High Lock Indicator – Powertrain > Special Functions > ATC Output Controls
4WD Indicator – Body > Instrument Panel Cluster > Special Functions > Lamp Test
4WD Low Indicator Light – Powertrain > Special Functions > ATC Output Controls
4WD Low Lock Indicator Light – Powertrain > Special Functions > ATC Output Controls
4WS-Tow Mode Lamp – Chassis > Rear Wheel Steering > Special Functions
52 Tooth Tone Ring Cal. – Chassis > 4WAL 3 Sensor > Special Functions > Tire Size Calibration
52 Tooth Tone Ring Cal. – Chassis > ABS > Special Functions > Tire Size Calibration
52 Tooth Tone Ring Cal. – Chassis > VSES (If Equipped) > Special Functions > Tire Size Calibration
55 Tooth Tone Ring Cal. – Chassis > 4WAL 3 Sensor > Special Functions > Tire Size Calibration
55 Tooth Tone Ring Cal. – Chassis > ABS > Special Functions > Tire Size Calibration
55 Tooth Tone Ring Cal. – Chassis > VSES (If Equipped) > Special Functions > Tire Size Calibration
A
A/C Clutch – Body > Heating and Air Conditioning > Special Functions > Output Test
A/C Clutch – Powertrain > Special Functions > Engine Output Controls
A/C Compressor – Powertrain > Special Functions > Engine Output Controls
A/C Cutoff Relay – Powertrain > Special Functions > Engine Output Controls
A/C Defrost Solenoid – Body > Heating and Air Conditioning > Special Functions > Output Control > Solenoid Test
A/C LED – Body > Body Control Module > Special Functions > Output Control > Miscellaneous Test
A/C LED – Body > Heating and Air Conditioning > Special Functions > Output Control > Miscellaneous Test
A/C LED – HVAC > HVAC Systems Automatic > Special Functions > HVAC Control Module
A/C LED – HVAC > HVAC Systems Manual > Special Functions > HVAC Control Module
A/C LED – HVAC > Special Functions > HVAC Control Module
A/C Mix Door – Body > Heating and Air Conditioning > Special Functions > Output Test
A/C Orifice Relay – Body > Dash Integration Module > Special Functions > Output Control
A/C Permission – Body > Heating and Air Conditioning > Special Functions > Output
A/C Permission – Body > Heating and Air Conditioning > Special Functions > Output Control > Miscellaneous Test
A/C Relay – Engine > Engine Controls > Special Functions > Engine Control Module > Output Controls
2005 Tech 2 Pathing 3
A/C Relay – Engine > Engine Cooling > select optional question(s) if applicable > Special Functions > Powertrain Control Module
A/C Relay – Engine > Engine Cooling > Special Functions > Engine Control Module > Output Controls
A/C Relay – Engine > Engine Cooling > Special Functions > Powertrain Control Module
A/C Relay – HVAC > HVAC Systems Automatic > Special Functions > Engine Control Module

Removed ALL the WAY TO MANY paths to read.. Open the link for all of them!!


Wiper Washer Motor – HVAC > Special Functions > Body Control Module > Miscellaneous Test
Wiper Washer Motor – Transmission/Transaxle > Shift Lock Control > Special Functions > Body Control Module > Miscellaneous Test
Wiper Washer Motor – Vehicle Control Systems > Computer/Integrating Systems > select optional questions if applicable > Special Functions >
Body Control Module > Miscellaneous Test
WOT 1-2 – Powertrain > Special Functions > Transmission Output Controls > Reset Adapts
Wow Instrument Cluster – Body > Body Function Controller > Special Functions > Output Control
WOW the Dash and HUD – Body > Instrument Panel Cluster > Special Functions > Output Control
X
XM Software Version ID – Body > Digital Radio Receiver > ID Information
XM Software Version ID – Body > Digital Radio Receiver > S Band (USA Only) > ID Information
XM Software Version ID – Vehicle Control Systems > Computer/Integrating Systems > select optional questions if applicable > Module ID Information >
Digital Radio Receiver
Y
Yaw Rate Sensor Recalibration – Chassis > Special Functions
Z
Zero Point Calibration – Body > Supplemental Inflatable Restraint > Occupant Classification System > Special Functions

 

Thx for a lotta typing, or ur really good at cut & paste !
Mark

 

Nobody better requote the op!

 

You know some tool will and the only reply will be

 

Here is the link to the entire Tech 2 manual:

http://service.gm.com/userguides/english/t2ug-en.pdf

Plasticman

 

that made my eyes hurt

 

So Bill, how did the procedure go last night??
Well I hope!

 

Got home way too late to attempt this procedure and its suppose to snow tonight. 6" of wet stuff!!!

This weekend may be better to try.

I removed a WHOLE BUNCH of the paths so it didnt take 5 min to page thru them all to get to the other post!

Just open the link for the entire list!

Bill

 

Bill,

Once again: You DA MAN!

 

Just an UP-DATE.... I did the procedure. Some say it isnt necessary. Didnt see anything significant change. The car is running fine..

There isnt a message that says it was completed or not so,, cant say if it worked or not.

Bill

 

Here is the document in a PDF file:

 

links change and get broken as this thread well shows. Taking a moment tho upload a softcopy is priceless!!! Thanks!

 

Updated link, current as of 1-31-2025:

https://tech2wiki.com/content/media_...user_guide.pdf