P1684 - Fail Case 1 and 2
- No TFT DTCs P0711, P0712, or P0713.
- No ISS DTCs P0716 or P0717.
- No OSS DTCs P0722 or P0723.
- DTC P1684 has not passed this key ON.
- The engine speed is 500 RPM or greater for 5 seconds.
- The ignition voltage is between 8.6 volts and 19.0 volts.
- The TCM power up temperature is between -39 and +149 °C (-38 and +300 °F).