☰ Toyota Levin Turbo☰ فهرستVehicle Interior › HEATING / AIR CONDITIONING › AIR CONDITIONING SYSTEM(for Gasoline Model (NR Series) with Manual Air Conditioning System for Mechanical Control Type)
RM3660EC
_58
Vehicle Interior
_080733
HEATING / AIR CONDITIONING
_0591216
AIR CONDITIONING SYSTEM(for Gasoline Model (NR Series) with Manual Air Conditioning System for Mechanical Control Type)
J
HEATING / AIR CONDITIONING AIR CONDITIONING SYSTEM(for Gasoline Model (NR Series) with Manual Air Conditioning System for Mechanical Control Type) PTC Heater Circuit
DESCRIPTION
The air conditioning amplifier assembly sends operation signals to the PTC HTR relays when quick heater assembly operation conditions are met. Based on the signals from the air conditioning amplifier assembly, the PTC HTR relays turn on, and power is supplied to the quick heater assembly installed in the air conditioning radiator assembly.
| Symptom | Factor |
|---|---|
| Heating performance is poor when it is cold. | ·
Quick heater assembly malfunction ·
Air conditioning amplifier assembly malfunction ·
PTC HTR relay malfunction ·
Harness or connector |
WIRING DIAGRAM
0.104,0.76 1.74,0.958
1.635,0.198
10
false
from IG1-NO. 1 Relay
0.656,1.26 1.5,1.469
0.844,0.208
10
false
from Battery
2,0.917 3.031,1.125
1.031,0.208
10
false
ECU-IG1 NO. 3
1.969,1.417 3.031,1.625
1.063,0.208
10
false
PTC HTR NO. 2
1.979,2.708 3.042,2.917
1.063,0.208
10
false
PTC HTR NO. 1
1.99,3.99 3.052,4.198
1.063,0.208
10
false
PTC HTR NO. 3
3.49,1.563 4.583,1.792
1.094,0.229
10
false
PTC HTR NO. 2
3.479,2.844 4.563,3.083
1.083,0.24
10
false
PTC HTR NO. 1
3.49,4.135 4.667,4.385
1.177,0.25
10
false
PTC HTR NO. 3
3.25,6.031 4.76,6.25
1.51,0.219
10
false
Quick Heater Assembly
5.365,4.75 6.979,5.094
1.615,0.344
10
false
Air Conditioning Amplifier Assembly
4.385,4.698 4.615,4.865
0.229,0.167
10
false
B
4.396,5.125 4.625,5.292
0.229,0.167
10
false
B
4.406,5.615 4.635,5.781
0.229,0.167
10
false
B
5.74,0.677 6.167,0.865
0.427,0.188
10
false
PTC2
5.75,1.958 6.177,2.146
0.427,0.188
10
false
PTC1
5.74,3.25 6.167,3.438
0.427,0.188
10
false
PTC3
3.406,0.698 3.563,0.896
0.156,0.198
10
false
1
3.427,1.979 3.583,2.177
0.156,0.198
10
false
1
3.406,3.271 3.563,3.469
0.156,0.198
10
false
1
4.427,0.698 4.583,0.896
0.156,0.198
10
false
2
4.427,1.99 4.583,2.188
0.156,0.198
10
false
2
4.438,3.271 4.594,3.469
0.156,0.198
10
false
2
3.396,1.177 3.552,1.375
0.156,0.198
11
false
3
3.417,2.479 3.552,2.656
0.135,0.177
10
false
3
3.417,3.76 3.552,3.938
0.135,0.177
10
false
3
4.427,1.177 4.594,1.396
0.167,0.219
10
false
5
4.438,2.479 4.604,2.698
0.167,0.219
10
false
5
4.438,3.76 4.604,3.979
0.167,0.219
10
false
5
4.688,4.771 4.927,4.938
0.24,0.167
10
false
J2
4.688,5.698 4.906,5.917
0.219,0.219
10
false
J1
4.688,5.208 4.927,5.417
0.24,0.208
10
false
J1
3.146,4.781 3.448,4.948
0.302,0.167
10
false
J2
3.156,5.708 3.458,5.875
0.302,0.167
10
false
J1
3.458,4.688 3.688,4.854
0.229,0.167
10
false
E
3.458,5.604 3.688,5.771
0.229,0.167
10
false
E
5.385,4.552 5.729,4.719
0.344,0.167
10
false
I162
5.563,0.667 5.813,0.854
0.25,0.188
10
false
8
5.49,1.958 5.688,2.146
0.198,0.188
10
false
25
5.5,3.25 5.698,3.438
0.198,0.188
10
false
24
4.719,5.021 4.885,5.24
0.167,0.219
10
false
3
4.708,4.594 4.875,4.813
0.167,0.219
10
false
2
4.719,5.51 4.885,5.729
0.167,0.219
10
false
1
3.198,5.521 3.365,5.74
0.167,0.219
10
false
2
3.177,4.594 3.365,4.802
0.188,0.208
10
false
1
CAUTION / NOTICE / HINT
- NOTICE:
-
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
1.INSPECT PTC HTR RELAY
a.
Inspect the PTC HTR relays.
- Result:
Proceed to OK NG
OK
2.CHECK HARNESS AND CONNECTOR (POWER SOURCE - PTC HTR RELAY)
NG
REPLACE PTC HTR RELAY
2.CHECK HARNESS AND CONNECTOR (POWER SOURCE - PTC HTR RELAY)
a.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
- PTC HTR NO. 1:
Tester Connection Condition Specified Condition 3 (PTC HTR NO. 1 relay) - Body ground Ignition switch off 11 to 14 V 1 (PTC HTR NO. 1 relay) - Body ground Ignition switch off Below 1 V 1 (PTC HTR NO. 1 relay) - Body ground Ignition switch ON 11 to 14 V
- Standard Voltage:
- PTC HTR NO. 2:
Tester Connection Condition Specified Condition 3 (PTC HTR NO. 2 relay) - Body ground Ignition switch off 11 to 14 V 1 (PTC HTR NO. 2 relay) - Body ground Ignition switch off Below 1 V 1 (PTC HTR NO. 2 relay) - Body ground Ignition switch ON 11 to 14 V
- Standard Voltage:
- PTC HTR NO. 3:
Tester Connection Condition Specified Condition 3 (PTC HTR NO. 3 relay) - Body ground Ignition switch off 11 to 14 V 1 (PTC HTR NO. 3 relay) - Body ground Ignition switch off Below 1 V 1 (PTC HTR NO. 3 relay) - Body ground Ignition switch ON 11 to 14 V
- Result:
Proceed to OK NG
OK
3.CHECK HARNESS AND CONNECTOR (PTC HTR RELAY - AIR CONDITIONING AMPLIFIER ASSEMBLY)
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
3.CHECK HARNESS AND CONNECTOR (PTC HTR RELAY - AIR CONDITIONING AMPLIFIER ASSEMBLY)
a.
Disconnect the I162 air conditioning amplifier assembly connector.
b.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- PTC HTR NO. 1:
Tester Connection Condition Specified Condition 2 (PTC HTR NO. 1 relay) - I162-25 (PTC1) Always Below 1 Ω 2 (PTC HTR NO. 1 relay) or I162-25 (PTC1) - Other terminals and body ground Always 10 kΩ or higher
- Standard Resistance:
- PTC HTR NO. 2:
Tester Connection Condition Specified Condition 2 (PTC HTR NO. 2 relay) - I162-8 (PTC2) Always Below 1 Ω 2 (PTC HTR NO. 2 relay) or I162-8 (PTC2) - Other terminals and body ground Always 10 kΩ or higher
- Standard Resistance:
- PTC HTR NO. 3:
Tester Connection Condition Specified Condition 2 (PTC HTR NO. 3 relay) - I162-24 (PTC3) Always Below 1 Ω 2 (PTC HTR NO. 3 relay) or I162-24 (PTC3) - Other terminals and body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
4.CHECK HARNESS AND CONNECTOR (PTC HTR RELAY - QUICK HEATER ASSEMBLY AND BODY GROUND)
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
4.CHECK HARNESS AND CONNECTOR (PTC HTR RELAY - QUICK HEATER ASSEMBLY AND BODY GROUND)
a.
Disconnect the J1 and J2 quick heater assembly connectors.
b.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- PTC HTR NO. 1:
Tester Connection Condition Specified Condition 5 (PTC HTR NO. 1 relay) - J1-3 (B) Always Below 1 Ω 5 (PTC HTR NO. 1 relay) or J1-3 (B) - Other terminals and body ground Always 10 kΩ or higher
- Standard Resistance:
- PTC HTR NO. 2:
Tester Connection Condition Specified Condition 5 (PTC HTR NO. 2 relay) - J1-1 (B) Always Below 1 Ω 5 (PTC HTR NO. 2 relay) or J1-1 (B) - Other terminals and body ground Always 10 kΩ or higher
- Standard Resistance:
- PTC HTR NO. 3:
Tester Connection Condition Specified Condition 5 (PTC HTR NO. 3 relay) - J2-2 (B) Always Below 1 Ω 5 (PTC HTR NO. 3 relay) or J2-2 (B) - Other terminals and body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
5.CHECK HARNESS AND CONNECTOR (QUICK HEATER ASSEMBLY - BODY GROUND)
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
5.CHECK HARNESS AND CONNECTOR (QUICK HEATER ASSEMBLY - BODY GROUND)
a.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition J1-2 (E) - Body ground Always Below 1 Ω J2-1 (E) - Body ground Always Below 1 Ω
- Result:
Proceed to OK NG
OK
6.INSPECT QUICK HEATER ASSEMBLY
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
6.INSPECT QUICK HEATER ASSEMBLY
a.
Remove the quick heater assembly.
b.
Inspect the quick heater assembly.
- Result:
Proceed to OK NG
OK
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY
NG