GM Tech 2 scan tool self test

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GM Tech 2 scan tool self test

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Tech 2 scan tool self test… here you go.

How to do Tech 2 self test:

Insert GM card into the card slot on Tech 2

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Insert the self test adapter with the Tech2 main unit

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Power on Tech2 scan tool

Go to the menu, and choose “F4 tool options”

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Go for F3 self test

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Follow the system prompts:
Before running the Tech 2 self test:
CANdi interface must not be connected
ALDL loopback should be connected
Failure to follow these instructions may invalidate the self test
Press EXIT to continue

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Go to self test

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Self test 1: Automated VCI

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Self test: Tech 2 VCI

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Mux…pass

Adc…pass

Sipo 8…pass

Sipo 20…pass

Dlc 1…pass

Dlc 2…pass

Tpu…pass

Hbcc…ignored

Ccd…pass

Dual uart…pass

J1708…pass

Gnd fet…pass

Level shifters…pass

Cross point…pass

Short L and M…pass

Test I/01-I/016…pass

Loopback…pass

Self test 2: CANdi interface

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Two options for CANdi: POST results and self test

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First, CANdi POST test

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CANdi present: pass

CANdi ram: pass

CANdi boot: pass

Uart data link: pass

Second, CANdi self test

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CANdi present: pass

CANdi ram: pass

CANdi boot: pass

CANdi resident: pass

CANdi application: pass

Low speed data link: pass

Med. Spd. Data link: pass

High speed data linl: pass

Self test 3: Tech 2 Key pad

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F0 key: pass

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The test from

F0-F1-F2-F3-F4-F5-F6-F7-F8-F9-EXIT-ENTER- ?

All buttons are tested one by one.

Self test 4: RS232 cable

Select F3: Selectable main PCB

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Select F2:RS232 LoopBack

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Tech2 RS232 cable: pass

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All passed!

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