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Automatic Transmission – 4L60E – Electrical Diagnosis Page 7C2–114 Step Action Yes No 11 1 Remove Tool No. J44152 from the transmission. 2 Gain access to the TCC PWM solenoid and the control valve 3 Using a multimeter set to measure resistance, probe between Does the multimeter display 250 k Ω in both instances? Replace the control valve body wiring harness, refer to 7C4 Automatic Transmission – 4L60E – On-vehicle Servicing Go to Step 19 Replace the TCC PWM solenoid, refer to 7C4 Automatic Transmission – 4L60E – On-vehicle Servicing. Go to Step 19 12 Using a multimeter, test between E-95 pin 10 and C-107 pin 9 for a short to ground. Did you find and correct the condition? Go to Step 19 Go to Step 13 13 1 Gain access to the control valve body wiring harness, refer to 2 Test for a short to ground in the control valve body wiring Did you find a short to ground condition? Replace the control valve body wiring harness, refer to 7C4 Automatic Transmission – 4L60E – On-vehicle Servicing Go to Step 19 Go to Step 14 14 1 Test each solenoid for a short to ground. 2 Replace the faulty solenoid as necessary. Did you complete the replacement? Go to Step 19 — 15 Using a multimeter, test between E-95 pin 10 and C-107 pin 9 for an open circuit. Did you find and correct the condition? Go to Step 19 — 16 Using a multimeter, test between E-95 pin 11 and C-96 pin 14 for a short to ground. Did you find and correct the condition? Go to Step 19 Go to Step 20 17 Using a multimeter, test between E-95 pin 11 and C-96 pin 14 for an open circuit. Did you find and correct the condition? Go to Step 19 Go to Step 20 18 Replace the TCM, refer to 7C4 Automatic Transmission – 4L60E – On-vehicle Servicing. Did you complete the replacement? Go to Step 19 — 19 Perform the following procedure to verify the repair: 1 On Tech 2 select: 2 Follow the instructions on Tech 2 and clear any DTCs. 3 On Tech 2 select: 4 Drive the vehicle in D4 and ensure the TCC Duty Cycle Circuit 5 On Tech 2 select: Has DTC P2764 set? Go to Step 2 Go to Step 20 |