PROBLEM SYMPTOMS TABLE
HINT:
Symptom |
Suspected Area |
Link |
---|---|---|
All functions of the air conditioning system do not operate |
IG power source circuit |
|
Back-up power source circuit |
|
|
LIN communication circuit |
|
|
Air conditioning amplifier assembly |
|
|
Air flow Control: No blower operation |
Blower motor circuit |
|
LIN communication circuit |
|
|
Air conditioning amplifier assembly |
|
|
Air flow control: No blower control |
Blower motor circuit |
|
LIN communication 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*3 |
|
|
Refrigerant pressure*4 |
|
|
Air conditioner pressure sensor circuit |
|
|
LIN communication circuit |
|
|
Air mix damper control servo motor circuit (for driver side upper air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side upper air mix) |
|
|
Air mix damper control servo motor circuit (for driver side lower air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side lower air mix) |
|
|
Evaporator temperature sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
Cooler expansion valve |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side lower air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) |
|
|
Air conditioning harness assembly (heater radiator unit sub-assembly) |
|
|
Air conditioning harness assembly (blower assembly) |
|
|
Compressor with pulley assembly |
|
|
Air conditioning amplifier assembly |
|
|
ECM |
|
|
Temperature control: No warm air comes out |
LIN communication circuit |
|
Air mix damper control servo motor circuit (for driver side upper air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side upper air mix) |
|
|
Air mix damper control servo motor circuit (for driver side lower air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side lower air mix) |
|
|
Evaporator temperature sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
PTC heater circuit*1 |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side lower air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) |
|
|
Air conditioning harness assembly (heater radiator unit sub-assembly) |
|
|
Air conditioning harness assembly (blower assembly) |
|
|
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*3 |
|
|
Refrigerant pressure*4 |
|
|
Solar sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
LIN communication circuit |
|
|
Air mix damper control servo motor circuit (for driver side upper air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side upper air mix) |
|
|
Air mix damper control servo motor circuit (for driver side lower air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side lower air mix) |
|
|
Air inlet damper control servo motor circuit |
|
|
Heater radiator unit sub-assembly |
|
|
Cooler expansion valve |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side lower air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) |
|
|
No. 1 blower damper servo sub-assembly (fresh/recirculation) |
|
|
Air conditioning harness assembly (heater radiator unit sub-assembly) |
|
|
Air conditioning harness assembly (blower assembly) |
|
|
Air conditioning amplifier assembly |
|
|
ECM |
|
|
Temperature control: No temperature control (only MAX COLD or MAX HOT) |
LIN communication circuit |
|
Air mix damper control servo motor circuit (for driver side upper air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side upper air mix) |
|
|
Air mix damper control servo motor circuit (for driver side lower air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side lower air mix) |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
Evaporator temperature sensor circuit |
|
|
Solar sensor circuit |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side lower air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) |
|
|
Air conditioning harness assembly (heater radiator unit sub-assembly) |
|
|
Air conditioning harness assembly (blower assembly) |
|
|
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*3 |
|
|
Refrigerant pressure*4 |
|
|
Air mix damper control servo motor circuit (for driver side upper air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side upper air mix) |
|
|
Air mix damper control servo motor circuit (for driver side lower air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side lower air mix) |
|
|
Automatic light control sensor |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side lower air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) |
|
|
Air conditioning harness assembly (heater radiator unit sub-assembly) |
|
|
Air conditioning harness assembly (blower assembly) |
|
|
Air conditioning amplifier assembly |
|
|
No air inlet control |
LIN communication circuit |
|
Air inlet damper control servo motor circuit |
|
|
No. 1 blower damper servo sub-assembly (fresh/recirculation) |
|
|
Air conditioning harness assembly (heater radiator unit sub-assembly) |
|
|
Air conditioning harness assembly (blower assembly) |
|
|
Air conditioning amplifier assembly |
|
|
Quick heater assembly does not operate*1 |
PTC heater circuit |
|
Air conditioning amplifier assembly |
|
|
Ion generator sub-assembly does not operate*2 |
Ion generator circuit |
|
Air conditioning amplifier assembly |
|
|
Diagnostic trouble codes (DTCs) are not recorded. Set mode is cleared when the ignition switch is turned off |
Back-up power source circuit |
|
Air conditioning amplifier assembly |
|
Toyota CH-R Service Manual > Pre-collision System: Stop Light Relay Circuit (C1A4B)
DESCRIPTION
The skid control ECU (brake actuator assembly) sends a stop light operation request
signal to the stop light switch assembly. If the skid control ECU (brake actuator
assembly) detects a malfunction in the stop light switch assembly circuit, the millimeter
wave radar sensor assembl ...
Toyota CH-R Service Manual > Brake Control / Dynamic Control Systems: Brake Hold Switch
Components
COMPONENTS
ILLUSTRATION
*1
BRAKE HOLD SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)
-
-
Inspection
INSPECTION
PROCEDURE
1. INSPECT BRAKE HOLD SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)
(a) Check the resistance.
...