SEAT  CLIMATE CONTROL SEAT SYSTEM  HOW TO PROCEED WITH TROUBLESHOOTING  

Interview the customer to confirm the problem.

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Measure the auxiliary battery voltage with the ignition switch off.*1

Measure the auxiliary battery voltage.*2

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

Check the fuses and relays.

Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

Using the GTS, check for LIN communication system DTC.

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Result:

Result	Proceed to
DTC B14B587 is not output	A
DTC B14B587 is output	B

Refer to Problem Symptoms Table.

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Result:

Result	Proceed to
Fault is not listed in Problem Symptoms Table	A
Fault is listed in Problem Symptoms Table	B

Terminals of ECU

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On-vehicle Inspection

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