Symptom Table
Follow the next table and perform trouble diagnosis if there is a compressor unit malfunction (internal noise, insufficient cooling).
Symptom |
Inspection method |
Check list |
Result |
Action |
Noise from compressor unit
When A/C is ON.
(rattling or rolling sound) |
Cooker system internal pressure | Check with manifold gauge | Both high- and lowpressure sides are high.*2 | Recharge with proper amount of refrigerant. |
High/low-pressures hunt.*2 | Replace compressor only. | |||
Check compressor oil condition. | Sample compressor oil and judge. | Refer to the criteria shown in compressor lubricant. | Judgment result 1: Replace
compressor only. Judgment result 2: Replace compressor and liquid tank. |
|
Insufficient cooling*1 | Compressor body | Check rotation of compressor. If sized or stuck, sample compressor oil and judge. |
||
Cooler system internal pressure | Check with a manifold gauge. Sample compressor oil and judge if the difference between high-pressure and low-pressure is small or if they are almost the same. |
|||
Outlet air temperature rises temporarily while driving.*2 |
— |
— |
— |
Replace compressor only. |
*1: First conduct inspection according to trouble diagnosis for each
malfunction.
*2: Applicable to variable capacity compressor only.
O/D off indicator lamp
Component Function Check
1.CHECK O/D OFF INDICATOR LAMP FUNCTION
Check O/D OFF indicator lamp turns ON for approx. 2 seconds when ignition
switch turns ON.
Is the inspection results normal?
YES >> INSPECTION END
NO >> Go to TM-181, "Diagnosis Procedure".
Diagnosis Pro ...
C1170 variant coding
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1170
VARIANT CODING
When the information in ABS actuator and electric
unit (control unit) is not the same.
ABS actuator and electric unit
(control unit)
DTC ...
Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
...