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Automatic Transmission – 4L60E – Electrical Diagnosis Page 7C2–14 3 Tech 2 Information 3.1 Tech 2 Diagnostics Tech 2, with the appropriate software, cables and adapters, 1 DLC 2 DLC Adapter 3 DLC Cable 4 Tech 2 For additional general information on connecting and Figure 1A7 – 3 Test Modes Tech 2 has six test modes for diagnosing the transmission. To get to these various test modes, on Tech 2 select: Diagnostic Trouble Codes If Diagnostic Trouble Codes is selected, a selection list is displayed which contains: • Read DTC Information – Once selected, both current and history diagnostic trouble codes (DTCs) stored in the • Clear Engine & Transmission DTC(s) – Once selected, DTCs stored in the transmission control module (TCM) • Freeze Frame / Failure Records – Shows Freeze Frame / Failure Records information. Freeze Frame / Failure N O T E For a complete list of TCM DTCs, refer to
4.8 Diagnostic Trouble Code List. For further information on Tech 2 and it functions, Data Display If Data Display is selected, a selection list is displayed which contains: • Transmission Data – Once is selected, a list of transmission components and the TCM inputs are displayed along • TCC Data – Once selected, displays specific parameter information about the torque converter clutch controlling • 1-2 Shift Data – Once selected, displays specific parameter information about the 1-2 shift solenoid valve (shift |