RL V6-3.5L (2007)
Seat Heater: Reading and Clearing Diagnostic Trouble Codes
Without Scan Tool
Entering the self-diagnostic function
1. Turn the ignition switch ON (II), and do the next step within 5 seconds.
2. Push the DOWN side of the seat ventilation switch three times, and the UP side six times, then the DOWN side three times.
3. If the system enters the self-diagnostic mode, all of the LEDs (A) turn on for 6 seconds, then indicate the result.
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If the three LEDs of the heater side turn on, the thermistor is faulty.
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If no LED turns on, the thermistor is OK.
NOTE: The system has a timer function.
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The fan motor timer: About 15 minutes after the fan motor HIGH position is ON, the control unit changes the fan motor speed and switch
LED indicators from Hi to Mid.
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The seat heater timer: About 5 minutes after the heater temperature rises over 140 °F (60 °C), the control unit changes the heater temperature
and switch LED indicators from Hi to Mid.
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The seat heater timer: About an hour after the heater temperature rises over 115 °F(46 °C), the control unit changes the heater temperature and
switch LED indicators from Mid to LO.
Ending the self-diagnostic function
Turn the ignition switch OFF, and the self-diagnostic mode is exited.
