| Circuit Diagram |

|
NO |
Description |
|
1 |
ECU Battery(+) |
|
2 |
ECU Battery(+) |
|
3 |
Passenger heater power |
|
4 |
Passenger NTC (+) |
|
5 |
Passenger heater indicator (Low) |
|
6 |
- |
|
7 |
Passenger heater indicator (High) |
|
8 |
- |
|
9 |
ILL (-) |
|
10 |
Passenger heater switch |
|
11 |
Passenger NTC (-) |
|
12 |
Passenger heater GND |
|
13 |
ECU GND |
|
14 |
IGN 1 |
|
15 |
IGN 2 |
|
16 |
Drive heater power |
|
17 |
Drive NTC (+) |
|
18 |
Drive heater indicator (Low) |
|
19 |
- |
|
20 |
Drive heater indicator (High) |
|
21 |
- |
|
22 |
DETENT |
|
23 |
Drive heater switch |
|
24 |
Drive NTC (-) |
|
25 |
Drive heater GND |
|
26 |
ECU GND |
Component Location [Front Seat Heater] 1. Seat heater unit (Assist seat only) 2. Front seat cushion heater 3.
Inspection Front Seat Heater 1. Check for continuity and measure the resistance between terminals No 3 and No 6.
Troubleshooting Problem Symptoms Table Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor. Use the table below to help you find the cause of the problem.