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If the rear blower motor does not operate, the
rear blower motor circuit system may be
defective.
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- Malfunction of rear blower relay
- Malfunction of rear blower motor
- Malfunction of rear power transistor
- Malfunction of the A/C-ECU
- Damaged harness wires and connectors
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Check whether the air conditioner sets a
diagnosis code or not.
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Q.
Is the check result normal?
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Refer
to diagnosis code chart .
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Carry out the actuator test. (Refer to .)
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- Item 04: Rear blower fan: OFF
- Item 05: Rear blower fan: AUTO <vehicles with dual automatic
A/C>
- Item 06: Rear blower fan: Lo
- Item 07: Rear blower fan: Middle
- Item 08: Rear blower fan: High
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Q.
Does the rear blower motor work normally?
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Check that the following service data display
contents are normal. (Refer to .)
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- Item 22: Rear blower fan
- Item 23: Rear blower fan (Target)
- Item 31: Rear fan SW (Front)
- Item 32: Rear control OFF switch
- Item 33: Rear control fan OFF switch
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Q.
Is the check result normal?
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NO <Item 22, 23, 32, 33 is
abnormal>
: Go to Step 4.
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NO <Item 31 is abnormal> : Refer to
Inspection Procedure 22: Rear fan switch system <LHD> ,
Inspection Procedure 23: Rear fan switch system <RHD (Except vehicles
for Hong Kong
and Singapore)> or Inspection Procedure 24: Rear
fan switch system <RHD (Vehicles for Hong Kong and
Singapore)> .
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![](../../../img/55/AC313432AB00ENG.png)
![](../../../img/55/AC313434AC00ENG.png)
![](../../../img/55/AC313436AB00ENG.png)
![](../../../img/55/AC313438AD00ENG.png)
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Q.
Is the check result normal?
Go to Step 5.
Repair the connector.
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Q.
Is the check result normal?
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Replace the rear heater
controller.
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![](../../../img/55/AC313392AK00ENG.png)
![](../../../img/55/AC313406AH00ENG.png)
![](../../../img/55/AC313416AK00ENG.png)
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Q.
Is the check result normal?
Go to Step 7.
Repair the connector.
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![](../../../img/55/AC313432AB00ENG.png)
![](../../../img/55/AC313434AC00ENG.png)
![](../../../img/55/AC313436AB00ENG.png)
![](../../../img/55/AC313438AD00ENG.png)
![](../../../img/55/AC313393AO00ENG.png)
![](../../../img/55/AC313407AK00ENG.png)
![](../../../img/55/AC313417AL00ENG.png)
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note |
Prior to the wiring harness inspection, check
intermediate connector C-128, and repair
if necessary.
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- Check the input line for open circuit.
Q.
Is the check result normal?
Go to Step 8.
Repair the wiring
harness.
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Q.
Is the check result normal?
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The
trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope
with Intermittent Malfunction ).
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![](../../../img/55/AC313398AG00ENG.png)
![](../../../img/55/AC313408AG00ENG.png)
![](../../../img/55/AC313418AM00ENG.png)
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Q.
Is the check result normal?
Go to Step 10.
Repair the connector.
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Q.
Is the check result normal?
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Refer
to Inspection Procedure 25: Rear blower motor power supply system
<LHD> , Inspection
Procedure 26: Rear blower motor power supply system <RHD (Except
vehicles for Hong Kong
and Singapore)> or Inspection Procedure 27: Rear
blower motor power supply system <RHD (Vehicles for Hong Kong and
Singapore)> .
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Replace the rear blower
relay.
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