Oil Specification
- The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed.
- Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the model of compressor.
Specification
| Evaporator core temperature [°C (°F)] | Resistance [Kohms] | Voltage[V] |
|---|---|---|
| 10 (14) | 18.01 | 3.22 |
| 0 (32) | 11.35 | 2.66 |
| 10 (50) | 7.35 | 2.12 |
| 20 (68) | 4.89 | 1.64 |
| 30 (86) | 3.32 | 1.24 |
| 40 (104) | 2.3 | 0.94 |
| 50 (122) | 1.63 | 0.7 |
TEMPERATURE, VOLTAGE, AND RESISTANCE SPECIFICATIONS
- 4. If the measured resistance is not specification, substitute with a known-good evaporator temperature sensor and check for proper operation.
- 5. If the problem is corrected, replace the evaporator temperature sensor.
Scheme 1
Scheme 2
- Disconnect the negative (-) battery terminal.
- Remove the crash pad lower cover (A)
- Disconnect the evaporator sensor connector (A). CAUTION: Take care that evaporator core pins are not bent.
- Installation is the reverse order of removal.
| Temperature [°C (°F)] | Resistance between terminals 2 and 4 (kohms) |
|---|---|
| 30 | 509.6 ± 1.2% |
| 15 | 216 ± 1.2% |
| 0 | 97.71 ± 1.2% |
| 15 | 47.13 ± 1.2% |
| 25 | 30.00 ± 1.2% |
| 35 | 19.59 ± 1.2% |
| 50 | 10.81 ± 1.2% |
| 60 | 7.463 ± 1.2% |
TEMPERATURE AND RESISTANCE SPECIFICATIONS
Note. In car sensor is negative type thermistor. Its resistance will rise with lower temperature, and it's resistance will lower with higher temperature.
Scheme 3
- Disconnect the negative (-) battery terminal.
- Remove the crash pad. (For Coupe, refer to «CRASH PAD»(ref-362224-S30236245892010060400000) . For Sedan, refer to «CRASH PAD»(ref-362245-S13817783762010060400000) .)
- Disconnect the connector of in-car sensor (A). Loosen the mounting 2 screws and then remove the in-car sensor.
- Installation is the reverse order of removal.
| Ambient temperature [°C (°F)] | Resistance between terminals 1 and 2 (kohms) |
|---|---|
| 10 (14) | 164.2 |
| 0 (32) | 97.5 |
| 10 (50) | 59.6 |
| 20 (68) | 37.46 |
| 30 (86) | 24.18 |
| 40 (104) | 16 |
AMBIENT TEMPERATURE AND RESISTANCE
Scheme 4
- 4. If the measured resistance is not specification, substitute with a known-good ambient temperature sensor and check for proper operation.
- 5. If the problem is corrected, replace the ambient temperature sensor.
Scheme 5
- Disconnect the negative (-) battery terminal.
- Remove the front bumper. (For Coupe, refer to «FRONT BUMPER»(ref-362257-S03855621912010060400000) . For Sedan, refer to «FRONT BUMPER»(ref-362262-S36918342852010060400000) .)
- Remove the ambient temperature sensor (A).
- Installation is the reverse order of removal.