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General Motors Tech2 User Guide
69
Power Source: DLC Cable
Step
Action
Yes
No
1
1. Unplug cigarette lighter power
cable from DLC cable.
2. Using a digital multi-meter
(DMM), verify voltage output at
cigarette lighter power cable power
jack.
Do you have battery voltage
output?
Go to Step 2
Go to Step 3
2
1. Remove DLC cable from Tech2.
2. Plug in cigarette lighter power
jack to the VCI power jack
connector located at bottom of
Tech2.
Does the Tech2 power on?
Replace DLC
cable.
Problem with Tech2.
Contact Customer
Support.
3
Using a DMM, verify voltage output
at battery.
Do you have battery voltage
output?
Go to Step 4
Charge battery.
4
Disconnect cigarette lighter power
cable from vehicle and verify
voltage output at vehicle cigarette
lighter socket.
Do you have battery voltage
output?
Go to Step 5
Problem with vehicle.
Consult vehicle
service manual.
5
Check fuse in cigarette lighter
power cable
Does fuse need replacing?
Replace fuse.
Replace cigarette
lighter power cable.
Troubleshooting table for cigarette lighter power cable “No Power”
Summary of Contents for Tech2
Page 1: ...General Motors Tech2 User Guide 1 GM Tech2 User Guide ...
Page 20: ...General Motors Tech2 User Guide 20 Connection of the power jack to the DLC cable ...
Page 22: ...General Motors Tech2 User Guide 22 ...
Page 24: ...General Motors Tech2 User Guide 24 PCMCIA card keying ...
Page 26: ...General Motors Tech2 User Guide 26 VCI module removal ...
Page 32: ...General Motors Tech2 User Guide 32 Attaching the Tech2 to non OBD II equipped vehicles ...
Page 40: ...General Motors Tech2 User Guide 40 RS 232 cable connections ...
Page 46: ...General Motors Tech2 User Guide 46 Tech2 startup screen ...
Page 47: ...General Motors Tech2 User Guide 47 Tools Options selected on Main Menu ...
Page 52: ...General Motors Tech2 User Guide 52 Test Status ...
Page 53: ...General Motors Tech2 User Guide 53 Test Pass ...
Page 64: ...General Motors Tech2 User Guide 64 Selectable VCI test selected on Tech2 Self Test main menu ...
Page 65: ...General Motors Tech2 User Guide 65 First selectable VCI Self Test screen ...
Page 78: ...General Motors Tech2 User Guide 78 CANdi Diagnostics selected on Tool Options menu ...
Page 86: ...General Motors Tech2 User Guide 86 System Selection Menu ...
Page 97: ...General Motors Tech2 User Guide 97 Tool Controls Menu ...
Page 98: ...General Motors Tech2 User Guide 98 Hardware Menu ...
Page 101: ...General Motors Tech2 User Guide 101 Accept soft key on data screen ...
Page 103: ...General Motors Tech2 User Guide 103 Live Plot Screen with selectable items ...
Page 104: ...General Motors Tech2 User Guide 104 Min Max Adjustment screen ...
Page 106: ...General Motors Tech2 User Guide 106 Live Plot Resume soft key ...
Page 107: ...General Motors Tech2 User Guide 107 Live Plot Data List soft key ...
Page 136: ...General Motors Tech2 User Guide 136 Programming Failed Screen ...
Page 141: ...General Motors Tech2 User Guide 141 Controller Area Network diagnostic interface CANdi module ...