DESCRIPTION
This circuit consists of the air conditioning control assembly and the A/C amplifier. When the air conditioning control assembly is operated, signals are transmitted to the A/C amplifier through the LIN communication system.
If the LIN communication system malfunctions, the A/C amplifier does not operate even if the air conditioning control assembly is operated.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - BODY GROUND) |
(a) Disconnect the air conditioning control assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E3-5 (GND) - Body ground |
Always |
Below 1 Ω |
*1 |
Front view of wire harness connector (to Air Conditioning Control Assembly) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - BATTERY) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - AIR CONDITIONING CONTROL ASSEMBLY) |
(a) Disconnect the A/C amplifier connector. |
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
INSPECT AIR CONDITIONING CONTROL ASSEMBLY |
(a) Replace the air conditioning control assembly (See page
).
HINT:
Since the air conditioning control assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning control assembly with a new or a known good one and check that the condition returns to normal.
(b) Operate the air conditioning control assembly to check that it functions properly.
Result |
Proceed to |
---|---|
Air conditioning control assembly malfunctions |
A |
Air Conditioning control assembly functions properly |
B |
A | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
B | ![]() |
REPLACE AIR CONDITIONING CONTROL ASSEMBLY |
Steering Lock Motor Drive Power Circuit
DESCRIPTION
The steering lock ECU (steering lock actuator assembly) is connected to the power
management control ECU. The steering lock ECU (steering lock actuator assembly)
cannot activate the motor unless it receives permission signals from both ECUs.
...
Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
NOTICE:
When using a vise, do not overtighten it.
PROCEDURE
1. INSTALL STEERING LOCK ACTUATOR ASSEMBLY (w/ Smart Key System)
(a) Secure the steering column assembly in a vise.
(b) Temporarily install the ste ...
Back Door cannot be Opened
DESCRIPTION
When the back door cannot be opened, one of the following may be malfunctioning:
1) power back door ECU (power back door motor unit)*1 or back door closer ECU (multiplex
network door ECU)*2, 2) back door lock assembly, 3) back door opener swit ...