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Diagnostic Procedures

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  1. Check transmission fluid. Fill as needed. Check for possible engine cooling system problems. Repair as necessary.
  2. Connect scan tool to DLC. Turn ignition switch to ON position. DO NOT start engine. Using scan tool, record freeze frame and failure records for reference. Data will be lost when DTCs are cleared later in this test.
  3. Using scan tool, check TFT sensor signal voltage. If scan tool displays less than .20 volt, go to next step. If scan tool displays more than .20 volt, see DIAGNOSTIC AIDS.
  4. Turn ignition off. Disconnect transmission 20-pin connector. Turn ignition switch to ON position. DO NOT start engine. If scan tool displays more than 4.92 volts, perform COMPONENT & WIRING HARNESS RESISTANCE CHECK under COMPONENT TESTS . If scan tool displays less than 4.92 volts, go to next step.
  5. Check TFT sensor signal circuit for short to ground. Repair as necessary, then go to next step. If circuit is okay, inspect wiring for poor connections at VCM connectors. Check for bent, backed out, deformed or damaged terminals. Repair as necessary, then go to next step. If connections and terminals are okay, replace VCM, then go to next step.
  6. After repair is complete, select DTC on scan tool. Select "Clear Info" function. Select "Specific DTC" and enter DTC "P0218". Turn ignition switch to ON position. Scan tool must indicate fluid temperature less than 256°F (125°C) for at least 10 seconds. If DTC P0218 is not present, repair is complete. If DTC P0218 is still present, repeat test.
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