Use the following procedure to troubleshoot the seat heater system.
*: Use the GTS.
| Proceed to |
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| NEXT |
NEXT
Interview the customer to confirm the problem.
| Result | Proceed to |
|---|---|
| Malfunction in front seat heater (for HI/MID/LO Type Seat Heater) | A |
| Malfunction in front seat heater (for HI/LO Type Seat Heater) | B |
A
B
Measure the battery voltage.
11 to 14 V
If the voltage is below 11 V, recharge or replace the 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.
| Proceed to |
|---|
| NEXT |
NEXT
Clear the DTCs.
Check for air conditioning system DTCs or seat heater system DTCs.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| Air conditioning system DTCs are output | B |
| Seat heater system DTCs are output | C |
A
B
C
Refer to Problem Symptoms Table.
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table | A |
| Fault is listed in Problem Symptoms Table | B |
A
B
Data List / Active Test
Inspection
| Proceed to |
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| NEXT |
NEXT
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| NEXT |
NEXT
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| NEXT |
NEXT
Measure the battery voltage.
11 to 14 V
If the voltage is below 11 V, recharge or replace the 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.
| Proceed to |
|---|
| NEXT |
NEXT
Refer to Problem Symptoms Table.
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table | A |
| Fault is listed in Problem Symptoms Table | B |
A
B
Inspection
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| NEXT |
NEXT
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| NEXT |
NEXT
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| NEXT |
NEXT