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7A1–26 TRANSMISSION CONTROL SYSTEM (4L30–E) DTC P0218 Transmission Fluid Over Temperature Step Action Yes No 1 Were you sent here from the “Powertrain On–Board Diagnostic Go to Step 2 Go to OBD System Check Refer to Driveability and Emissions in Engine section 2 Perform the following checks: D Check for possible engine system problems. D Transmission fluid checking procedure. Refer to Checking Were the checks performed? Go to Step 3 — 3 1. Install the scan tool. NOTE: Before clearing DTC(s), use the scan tool to record “Failure 3. Record the DTC “Failure Records”. Is the TFT sensor signal voltage less than 0.33 volts? Go to Step 4 Go to Diagnostic Aids 4 1. Turn the ignition “off”. (additional DTCs may set). Is the TFT sensor signal voltage greater than 4.92 volts? Go to Internal Wiring Harness Check. Go to Step 5 5 Inspect/repair circuit RED/WHT for a short to ground. Was a problem found? Go to Step 7 Go to Step 6 6 1. Inspect the PCM for poor connections. Is the replacement complete? Go to Step 7 — 7 1. After the repair is complete, use the scan tool to select “DTC”, then “Clear Info” function and ensure the following conditions ° C (257 ° F) for at least 10 seconds. 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 |