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 |
|
|
Air conditioner pressure sensor circuit |
|
|
LIN communication circuit |
|
|
Air mix damper control servo motor circuit (for driver side air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side 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 air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) |
|
|
Air conditioning harness 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 air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side air mix) |
|
|
Evaporator temperature sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) |
|
|
Air conditioning harness 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 |
|
|
Solar sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
LIN communication circuit |
|
|
Air mix damper control servo motor circuit (for driver side air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side 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 air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) |
|
|
No. 1 blower damper servo sub-assembly (fresh/recirculation) |
|
|
Air conditioning harness 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 air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side 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 air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) |
|
|
Air conditioning harness 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 |
|
|
Air mix damper control servo motor circuit (for driver side air mix) |
|
|
Air mix damper control servo motor circuit (for front passenger side air mix) |
|
|
Automatic light control sensor |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix) |
|
|
No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) |
|
|
Air conditioning harness 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 |
|
|
Air conditioning amplifier assembly |
|
|
Quick heater assembly does not operate |
PTC heater 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 > Parking Brake: Parking Brake System
Precaution
PRECAUTION
IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs depending on the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
...
Toyota CH-R Service Manual > Electric Parking Brake System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
CUSTOMER PROBLEM ANALYSIS
(a) Interview the customer and confir ...