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TRANSMISSION CONTROL SYSTEM (4L30–E) 7A1–75 DTC P1860 TCC Solenoid Electrical (Cont’d) Step No Yes Action 12 The wiring harness between PCM connector terminal J2–D2 and Was a problem found and corrected? Go to Step 20 — 13 The wiring harness between transmission 16–way connector Was a problem found and corrected? Go to Step 20 — 14 The TCC solenoid is faulty, or the internal wiring harness from the Was a problem found and corrected? Go to Step 20 — 15 The wiring harness between PCM connector terminal J2–D2 and Was a problem found and corrected? Go to Step 20 — 16 The wiring harness between transmission 16–way connector Was a problem found and corrected? Go to Step 20 — 17 The TCC solenoid is faulty, or the internal wiring harness from the Was a problem found and corrected? Go to Step 20 — 18 Check every connection at the PCM. Is the replacement complete? Go to Step 20 — 19 Check the PCM connector terminal J2–D2, transmission 16–way Was a problem found and corrected? Go to Step 20 — 20 1. After the repair is complete, use the scan tool to select “DTC”, then “Clear Info” function and ensure the following conditions D The TCC solenoid is commanded “on” and the volts increase D The TCC solenoid is commanded “off” and the volts drop to 2. Review the scan tool “DTC Info”. Has the last test failed or is the current DTC displayed? Begin diagnosis again Go to Step 1 Repair verified |