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Automatic Transmission – 4L60E – Electrical Diagnosis Page 7C2–82 Step Action Yes No 3 1 Connect Tech 2 to the DLC. 2 Turn on the ignition, with the engine off. N O T E Before clearing the DTC, use the Tech 2 Freeze Frame/Failure Record to record the transmission 3 On Tech 2 select: 4 Select the relevant DTC and note the parameters at the time of 5 On Tech 2 select: 6 Follow the instructions on Tech 2 and clear the DTCs. N O T E It may be necessary to allow multiple TCC cycles to occur 7 On Tech 2 select: 8 Drive the vehicle in 4th gear with the TCC commanded on. On Tech 2, while TCC Solenoid status is On, is the TCC Slip Speed Go to Step 4 Refer to Diagnostic Aids within this Section 4 1 Inspect the torque converter clutch (TCC) solenoid valve for the • internal malfunction, such as sediment or damage, and • damaged seals, refer to 7C4 Automatic Transmission – 2 Inspect the torque converter clutch pulse width modulation • internal malfunction, such as sediment or damage, and • damaged seals, refer to 7C4 Automatic Transmission – Did you find and correct the condition? Go to Step 14 Go to Step 5 |