DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - AIR CONDITIONING CONTROL)
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL - BATTERY AND BODY GROUND)
REPLACE AIR CONDITIONING CONTROL ASSEMBLY
CHECK AIR CONDITIONING CONTROL ASSEMBLY
AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) - Air Conditioning Control Panel Circuit
DESCRIPTION
This circuit consists of the air conditioning control assembly and air conditioning amplifier assembly. When the air conditioning control assembly is operated, signals are transmitted to the air conditioning amplifier assembly through the LIN communication system.
If the LIN communication system malfunctions, the air conditioning amplifier assembly does not operate when the air conditioning control assembly is operated.
WIRING DIAGRAM
INSPECTION PROCEDURE
- Inspect the fuses and relays for circuits related to this system before performing the following inspection procedure.
| 1.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - AIR CONDITIONING CONTROL) |
Disconnect the E81 air conditioning amplifier assembly connector.
Disconnect the F10 air conditioning control assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| E81-37 (LIN1) - F10-5 (LIN1) | Always | Below 1 Ω |
| F10-5 (LIN1) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 2.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL - BATTERY AND BODY GROUND) |
Disconnect the F10 air conditioning control assembly connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
| F10-7 (IG+) - F10-1 (GND) | Ignition switch off | Below 1 V |
| Ignition switch ON | 11 to 14 V |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| F10-1 (GND) - Body ground | Always | Below 1 Ω |
Text in Illustration| *a | Front view of wire harness connector
(to Air Conditioning Control Assembly) |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 3.REPLACE AIR CONDITIONING CONTROL ASSEMBLY |
Temporarily replace the air conditioning control assembly with a new or normally functioning one ().
| 4.CHECK AIR CONDITIONING CONTROL ASSEMBLY |
Operate the air conditioning control assembly to check that it functions properly.
- OK:
- Air conditioning control assembly operates normally.
| | REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY ()
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| OK | |
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| END (AIR CONDITIONING CONTROL ASSEMBLY IS FAULTY) |
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