PROBLEM SYMPTOMS TABLE
HINT:
Symptom |
Suspected Area |
See page |
---|---|---|
All functions of the air conditioning system do not operate |
IG power source circuit |
|
Back-up power source circuit |
|
|
Air conditioning control panel circuit |
|
|
Air conditioning amplifier assembly |
|
|
Air flow control: No blower operation |
Blower motor circuit |
|
Air conditioning control panel circuit |
|
|
Air conditioning amplifier assembly |
|
|
Air flow control: No blower control |
Blower motor circuit |
|
Air conditioning control panel circuit |
|
|
Air conditioning amplifier assembly |
|
|
Air flow control: Insufficient air flow |
Blower motor circuit |
|
Air conditioning amplifier assembly |
|
|
Temperature control: No cool air comes out |
Refrigerant volume |
- |
Refrigerant pressure |
- |
|
Air conditioning pressure sensor circuit |
|
|
Air conditioning compressor magnetic clutch circuit |
|
|
Compressor lock sensor circuit |
|
|
Air mix damper position sensor circuit (for driver side) |
|
|
Air mix damper position sensor circuit (for front passenger side) |
|
|
Air mix damper control servo motor circuit (for driver side) |
|
|
Air mix damper control servo motor circuit (for front passenger side) |
|
|
Evaporator temperature sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
Cooler expansion valve |
|
|
Air conditioning control panel circuit |
|
|
Air conditioning amplifier assembly |
|
|
ECM |
|
|
Temperature control: No warm air comes out |
Air mix damper position sensor circuit (for driver side) |
|
Air mix damper position sensor circuit (for front passenger side) |
|
|
Air mix damper control servo motor circuit (for driver side) |
|
|
Air mix damper control servo motor circuit (for front passenger side) |
|
|
Evaporator temperature sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
PTC heater circuit*1 |
|
|
Air conditioning control panel circuit |
|
|
Air conditioning amplifier assembly |
|
|
ECM |
|
|
Temperature control: Output air is warmer or cooler than the set temperature or response is slow |
Refrigerant volume |
- |
Refrigerant pressure |
- |
|
Air conditioning compressor magnetic clutch circuit |
|
|
Compressor lock sensor circuit |
|
|
Automatic light control sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
Air mix damper position sensor circuit (for driver side) |
|
|
Air mix damper position sensor circuit (for front passenger side) |
|
|
Air mix damper control servo motor circuit (for driver side) |
|
|
Air mix damper control servo motor circuit (for front passenger side) |
|
|
Air inlet damper position sensor circuit |
|
|
Air inlet damper control servo motor circuit |
|
|
PTC heater circuit*1 |
|
|
Heater radiator unit sub-assembly |
|
|
Cooler expansion valve |
|
|
Air conditioning control panel circuit |
|
|
Air conditioning amplifier assembly |
|
|
ECM |
|
|
Temperature control: No temperature control (only Max. cool or Max. warm) |
Air mix damper position sensor circuit (for driver side) |
|
Air mix damper position sensor circuit (for front passenger side) |
|
|
Air mix damper control servo motor circuit (for driver side) |
|
|
Air mix damper control servo motor circuit (for front passenger side) |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
Evaporator temperature sensor circuit |
|
|
Automatic light control sensor circuit |
|
|
Air conditioning control panel circuit |
|
|
Air conditioning amplifier assembly |
|
|
Temperature control: Output air temperature is different between left and right registers (the set temperature is the same for both) |
Refrigerant volume |
- |
Refrigerant pressure |
- |
|
Air mix damper position sensor circuit (for driver side) |
|
|
Air mix damper position sensor circuit (for front passenger side) |
|
|
Air mix damper control servo motor circuit (for driver side) |
|
|
Air mix damper control servo motor circuit (for front passenger side) |
|
|
Automatic light control sensor circuit |
|
|
Air conditioning amplifier assembly |
|
|
No air inlet control |
Air inlet damper position sensor circuit |
|
Air inlet damper control servo motor circuit |
|
|
Air conditioning control panel circuit |
|
|
Air conditioning amplifier assembly |
|
|
No air flow mode control |
Air outlet damper position sensor circuit |
|
Air outlet damper control servo motor circuit |
|
|
Air conditioning control panel circuit |
|
|
Air conditioning amplifier assembly |
|
|
Quick heater assembly does not operate*1 |
PTC heater circuit |
|
Air conditioning amplifier assembly |
|
|
ECM |
|
|
Diagnostic trouble codes (DTCs) are not recorded. Set mode is cleared when ignition switch is off |
Back-up power source circuit |
|
Air conditioning amplifier assembly |
|
Lost Communication with Yaw Rate Sensor Module (U0123,U0126,U0129,U0142,U0155)
DESCRIPTION
These DTCs are output when a communication malfunction occurs between the sensors
and ECUs.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
U0123
Lost Communication with Yaw Rate Sensor Module
...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL BRAKE BOOSTER ACCUMULATOR ASSEMBLY
(a) Place the brake booster pump in a vise with a cloth.
(b) Install the brake booster accumulator pipe, compression spring and a new
O-ring.
NOTICE:
Ensure that no foreign matter enters the pump.
(c) Using a socket wrench ...
Terminals Of Ecu
TERMINALS OF ECU
1. AIRBAG SENSOR ASSEMBLY
Terminal No.
Terminal Symbol
Destination
A21-1
P2+
Instrument panel passenger without door airbag assembly (Front passenger
side squib 2nd step)
A21-2
...