U–74
TROUBLESHOOTING
End Of Sie
12
INSPECT EVAPORATOR PIPING
CONNECTIONS IN A/C UNIT FOR LOOSE
•
Are piping connections for evaporator in A/C
unit loose?
Yes
Tighten connections with specified torque, adjust both
compressor oil and refrigerant to specified amount, then go
to Step 20.
No
If the vane makes a noise, add
10 ml {10 cc, 0.34 fl oz}
of
compressor oil to the A/C compressor. Verify that the noise
is no longer heard.
Replace O-ring on piping, adjust refrigerant to specified
amount, then go to Step 20.
13
INSPECT PIPING CONNECTIONS FOR
LOOSE
•
Are piping connections loose?
Yes
Tighten connections with specified torque, adjust both
compressor oil and refrigerant to specified amount, then go
to Step 20.
No
If the vane makes a noise, add
10 ml {10 cc, 0.34 fl oz}
of
compressor oil to the A/C compressor. Verify that the noise
is no longer heard.
Replace O-ring on piping, adjust refrigerant to specified
amount, then go to Step 20.
14
CHECK TO SEE WHETHER MALFUNCTION
IS IN EXPANSION VALVE, AIR MIX
ACTUATOR AND COMPRESSOR OIL OR
ELSEWHERE
•
Does refrigerant high-pressure value hardly
increase?
Yes
Go to next step. (Pressure hardly increases.)
No
Go to Step 17.
15
CHECK TO SEE WHETHER MALFUNCTION
IS IN COMPRESSOR OIL AMOUNT AND A/C
COMPRESSOR OR ELSEWHERE
•
When engine is racing, does high-pressure
value increase?
Yes
Return to Step 3.
No
Go to next step.
16
CHECK TO SEE WHETHER MALFUNCTION
IS IN COMPRESSOR OIL AMOUNT OR A/C
COMPRESSOR
•
After compressor oil is replenished each
10
ml {10 cc, 0.34 fl oz}
, does high-pressure
value increase?
Yes
Troubleshooting completed. (Explain to customer that cause
was insufficient compressor oil.)
No
Replace A/C compressor, then go to Step 20. (Cause is
defective A/C compressor.)
17
CHECK TO SEE WHETHER MALFUNCTION
IS IN EXPANSION VALVE OR ELSEWHERE
•
Is only refrigerant low-pressure value high?
Yes
Go to Step 19.
No
Go to next step.
18
VERIFY THAT AIR MIX IS INSTALLED
SECURELY AND PROPERLY
•
Are A/C unit air mix links, air mix cranks, and
air mix rods securely and properly installed?
Yes
Set fan switch to 4th position.
Turn A/C switch on.
Set FRESH mode.
Set temperature control to MAX COLD.
Set VENT mode.
(1)Start and run the engine at
1,500 rpm
for
10 minutes
.
(2)Run the engine at idle for
1 minute
.
(3)Within
12 seconds
, idle
→
4,000 rpm
→
idle. Perform
cycle
5 times
.
(4) Run the engine at idle for
30 seconds
.
(5)Drain the compressor oil completely from the A/C
compressor and verify the amount.
•
If there is
approximately 90 ml {90 cc, 3.0 fl oz}
of
compressor oil, go to Step 20.
•
If there is
more than 90 ml {90 cc, 3.0 fl oz}
of
compressor oil, remove surplus oil and fill A/C
compressor with
90 ml {90 cc, 3.0 fl oz}
of
compressor oil. Repeat Steps (1) to (5).
(Cause is excessive amount of compressor oil.)
No
Repair or install links, cranks and rods securely in proper
position, then go to Step 20.
19
VERIFY THAT EXPANSION VALVE HEAT-
SENSING TUBE WITHIN A/C UNIT IS
POSITIONED SECURELY AND CORRECTLY
•
Is expansion valve heat-sensing tube within
A/C unit securely installed in proper position?
Yes
Replace expansion valve, then go to next step. (Since valve
opens too much, replacement is necessary.)
No
Install heat-sensing tube securely in proper position, then go
to next step.
20
VERIFY THAT MALFUNCTION SYMPTOM
OCCURS AFTER REPAIR
•
Does cool air blow out? (Are results of
refrigerant system performance test okay?)
Yes
Troubleshooting completed.
Explain repairs to customer.
No
Recheck malfunction symptoms, then repeat from Step 1 if
malfunction recurs.
STEP
INSPECTION
ACTION
Содержание 6 2002
Страница 104: ...F 4 LOCATION INDEX End Of Sie FUEL SYSTEM A6E390001006W01 Engine Room Side A6E3912W015...
Страница 151: ...F 36 EXHAUST SYSTEM A6E3914W002...
Страница 312: ...F 182 TROUBLESHOOTING QUICK DIAGNOSTIC CHART A6E398018881W02 A6E3980W001...
Страница 313: ...TROUBLESHOOTING F 183 F A6E3980W002...
Страница 314: ...F 184 TROUBLESHOOTING A6E3980W003...
Страница 315: ...TROUBLESHOOTING F 185 F End Of Sie A6E3980W004...
Страница 410: ...K 3 K...
Страница 411: ...K 4 LOCATION INDEX AUTOMATIC TRANSAXLE LOCATION INDEX A6E560001074W01 LOCATION INDEX A6E5600W001...
Страница 526: ...TROUBLESHOOTING K 115 K QUICK DIAGNOSIS CHART A6E568001030W04 A6E5680W001...
Страница 527: ...K 116 TROUBLESHOOTING End Of Sie A6E5680W002...
Страница 653: ...ON BOARD DIAGNOSTIC ABS TCS P 57 P...
Страница 701: ...TROUBLESHOOTING ABS TCS DYNAMIC STABILITY CONTROL P 105 P Vehicle with ABS TCS A6E6980W002...
Страница 702: ...P 106 TROUBLESHOOTING ABS TCS DYNAMIC STABILITY CONTROL Vehicle with DSC End Of Sie A6E6980W100...
Страница 819: ...OUTSIDE MIRROR S 60 2 THIS PAGE IS INTENTIONALLY LEFT BLANK End Of Sie...
Страница 971: ...T 76 WARNING AND INDICATOR SYSTEM Operating Order A6E8118W009...
Страница 1150: ...U 4 LOCATION INDEX End Of Sie CONTROL SYSTEM A6E850001042W01 L H D A6E8500W003 A6E8500W004...
Страница 1152: ...U 6 LOCATION INDEX R H D A6E8500W005 A6E8500W006...
Страница 1177: ...U 26 BASIC SYSTEM 12 Perform the refrigerant system performance test See U 13 REFRIGERANT SYSTEM PERFORMANCE TEST A6E8516W029...